/* =============================================== */
/* ================== VARIABLES ================== */
/* =============================================== */
:root {
    /* Dark Theme (Default) */
    --bg-color: #000000;
    --text-color: #ffffff;
    --text-color-light: rgba(255, 255, 255, 0.7);
    --modal-bg: #1a1a1a;
    --input-bg: #0d0d0d;
    --border-color: #333;
    --glow-color: rgb(138 163 255 / 32%);
    --error-color: #ff5252;
    --primary-accent: #8aa3ff;
    --primary-accent-hover: #6b89ff;
    --toast-bg: rgba(26, 26, 26, 0.85);
    --calendar-day-bg: #0d0d0d;
    --timeline-bar-bg: #1a1a1a;
    --settings-nav-bg: #0d0d0d;
    --settings-nav-active-bg: #2a2a2a;
    --ambience-item-bg: #0d0d0d;
    --ambience-item-border: #333;
    --ambience-icon-color: rgba(255, 255, 255, 0.4);
    --ambience-icon-active: var(--primary-accent);
    --ambience-slider-track: #555;
    --ambience-slider-thumb: var(--primary-accent);

    /* Font Families from Google Fonts */
    --font-inter: 'Inter', sans-serif;
    --font-poppins: 'Poppins', sans-serif;
    --font-jetbrains: 'JetBrains Mono', monospace;
    --font-space: 'Space Grotesk', sans-serif;
    --font-roboto-slab: 'Roboto Slab', serif;
    --font-playfair: 'Playfair Display', serif;
    --font-source-code: 'Source Code Pro', monospace;
    --font-nunito: 'Nunito', sans-serif;
    --font-family: var(--font-jetbrains); /* Default font */
    --transition-speed: 0.4s;
}

/* =============================================== */
/* ================ GLOBAL STYLES ================ */
/* =============================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    width: 100%;
    overflow: hidden;
    background-color: transparent;
}

body {
    color: var(--text-color);
    font-family: var(--font-family);
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    background-size: 2rem 2rem;
    transition: color var(--transition-speed);
}

#background-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-color: var(--bg-color); /* Fallback */
    transition: background-color 10s linear;
    overflow: hidden;
    background-position: center;
}

#background-layer video,
#background-layer img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#background-layer .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #000;
    opacity: 0;
}

.hidden {
    display: none !important;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* =============================================== */
/* ============ HELPER NOTIFICATIONS ============= */
/* =============================================== */
#countdown-helper-toast {
    position: fixed;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--toast-bg);
    backdrop-filter: blur(10px);
    color: var(--text-color);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    border: 1px solid var(--border-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    z-index: 1001;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    transition: opacity 0.5s ease, transform 0.5s ease;
    transform: translate(-50%, -20px);
}

#countdown-helper-toast.show {
    opacity: 1;
    transform: translate(-50%, 0);
}

#countdown-helper-toast.hidden {
    display: flex;
    visibility: hidden;
    opacity: 0;
}

#countdown-helper-toast i {
    color: var(--primary-accent);
}

/* =============================================== */
/* ============ AUTH & PROFILE SETUP ============= */
/* =============================================== */
#auth-page {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 1rem;
    margin: 1.5rem 0;
}

.auth-form input {
    padding: 0.8rem;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: background-color var(--transition-speed);
}

.auth-form button {
    padding: 0.7rem;
    background-color: var(--text-color);
    color: var(--bg-color);
    border: none;
    border-radius: 5px;
    font-size: 0.9rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.auth-form button:hover {
    transform: scale(1.05);
    box-shadow: 0 0 25px 0px var(--glow-color);
}

#auth-page h2 {
    font-size: 2rem;
}

#auth-page p {
    color: var(--text-color-light);
}

#auth-page a {
    color: var(--text-color);
    font-weight: bold;
    text-decoration: none;
}

.error-message {
    color: var(--error-color);
    margin-top: 1rem;
    min-height: 1.2rem;
}

.social-login-separator {
    color: var(--text-color-light);
    margin: 1rem 0;
    position: relative;
}
.social-login-separator::before,
.social-login-separator::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background-color: var(--border-color);
}
.social-login-separator::before {
    left: 0;
}
.social-login-separator::after {
    right: 0;
}

.social-login-btn {
    width: 100%;
    padding: 0.7rem;
    background-color: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 0.9rem;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: background-color 0.3s;
}

.social-login-btn:hover {
    background-color: var(--border-color);
}

.social-login-btn img {
    width: 18px;
    height: 18px;
}

#profile-setup-view {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.profile-pic-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    margin-bottom: 1.5rem;
}

.profile-pic-label span {
    color: var(--text-color-light);
    font-size: 0.9rem;
}

#profile-pic-preview {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--border-color);
    transition: border-color 0.3s;
}

.profile-pic-label:hover #profile-pic-preview {
    border-color: var(--primary-accent);
}

#otp-input {
    text-align: center;
    font-size: 1.5rem;
    letter-spacing: 0.5rem;
    font-family: var(--font-jetbrains);
}

/* =============================================== */
/* ============= APP & PAGE LAYOUT =============== */
/* =============================================== */
#app-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.page {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding: 2rem 3rem;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    visibility: hidden;
    overflow-y: auto;
}

.page.active {
    opacity: 1;
    visibility: visible;
}

#mini-clock {
    position: fixed;
    top: 20px;
    right: 25px;
    font-family: var(--font-jetbrains);
    font-size: 1.2rem;
    color: var(--text-color-light);
    background-color: rgba(255, 255, 255, 0.05);
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    z-index: 999;
    transition: opacity var(--transition-speed);
}

#date-countdown {
    position: fixed;
    top: 20px;
    left: 25px;
    font-family: var(--font-jetbrains);
    font-size: .95rem;
    color: var(--primary-accent);
    background-color: rgba(255, 255, 255, 0.05);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    border: 1px solid var(--primary-accent);
    box-shadow: 0px 0px 1px var(--primary-accent);
    z-index: 999;
    transition: opacity var(--transition-speed);
    white-space: nowrap;
}


.corner-btn {
    position: fixed !important;
    bottom: 90px;
    z-index: 1001;
    width: 45px;
    height: 45px;
    border-radius: 35px !important;
    padding: 0;
    top: auto;
    left: auto;
    right: auto;
    transform: none;
}
.corner-btn.left {
    left: 60px !important;
    right: auto;
}
.corner-btn.right {
    right: 60px !important;
    left: auto;
}

.tooltip {
    position: fixed;
    bottom: 80px;
    background-color: var(--modal-bg);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-size: 0.9rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-speed), visibility var(--transition-speed);
    pointer-events: none;
    z-index: 100;
}

/* =============================================== */
/* ============= TIMER & CLOCK VIEW ============== */
/* =============================================== */
#timer-page {
    justify-content: space-between;
}

.timer-wrapper {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
}

#main-display-container {
    display: flex;
    align-items: baseline;
    gap: 1rem;
}

#time-display {
    font-size: 10vw;
    font-weight: 700;
    font-family: inherit;
    letter-spacing: -2px;
    transition: font-size var(--transition-speed) ease-in-out;
    white-space: nowrap;
}

#ampm-display {
    font-size: 3vw;
    font-weight: 400;
    font-family: var(--font-inter);
    color: var(--text-color-light);
    transition: font-size var(--transition-speed) ease-in-out;
}

#timer-mode-display {
    font-size: 1.2rem;
    color: var(--text-color-light);
    margin-top: .5rem;
    min-height: 1.5rem;
    transition: color var(--transition-speed), font-size var(--transition-speed) ease-in-out;
    margin-bottom: .5rem;
    max-width: 80vw;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#timer-input {
    font-size: 10vw;
    font-weight: 700;
    font-family: var(--font-jetbrains);
    letter-spacing: -2px;
    background-color: transparent;
    border: none;
    color: var(--text-color);
    text-align: center;
    width: 100%;
    outline: none;
    padding: 0;
    margin: 0;
}

.main-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 2.5rem;
    transition: opacity var(--transition-speed) ease-in-out, visibility var(--transition-speed);
}

.play-btn {
    background-color: var(--primary-accent);
    color: var(--bg-color);
    border: none;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    font-size: 1.4rem;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    position: relative;
}

.play-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 25px 0px var(--glow-color);
}

.play-btn i {
    position: absolute;
    transform-origin: center;
}
.play-btn .icon-pause {
    opacity: 0;
    transform: scale(0.5) rotate(-90deg);
}
.play-btn .icon-play {
    opacity: 1;
    transform: scale(1) rotate(0);
}

/* =============================================== */
/* ================== ICON BAR =================== */
/* =============================================== */
.bottom-container {
    width: 100%;
    max-width: 480px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    padding: 1.5rem 0;
    transition: opacity var(--transition-speed) ease-in-out, visibility var(--transition-speed);
}

.icon-bar {
    display: flex;
    gap: 0.8rem;
    width: 100%;
    justify-content: center;
}

.icon-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 1rem;
    padding: 0.65rem 0.65rem;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed), border-color var(--transition-speed);
    position: relative;
}

.icon-btn:hover {
    transform: scale(1.05);
    border-color: var(--glow-color);
    box-shadow: 0 0 15px 0px var(--glow-color);
}

.icon-btn.active {
    border-color: var(--glow-color);
    box-shadow: 0 0 15px 0px var(--glow-color);
}

.icon-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--primary-accent);
    color: var(--bg-color);
    font-size: 0.7rem;
    font-weight: bold;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: var(--font-inter);
}

i .timersimbles {
    font-size: 2.75rem !important;
}

/* =============================================== */
/* ================= SOUND BAR =================== */
/* =============================================== */
#sound-bar {
    width: 55vh;
    background: var(--modal-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.5rem 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    transition: opacity 0.3s, visibility 0.3s, transform 0.4s ease-in-out;
    z-index: 99;
}

#sound-bar.hidden {
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

#sound-bar.minimized {
    visibility: hidden;
    opacity: 0;
    transform: translateY(150%);
}

.sound-bar-btn {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 0.9rem;
    cursor: pointer;
    flex-shrink: 0;
}

.sound-bar-info {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    min-width: 0;
}

#sound-bar-title {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.8rem;
    text-align: left;
}

.sound-bar-progress-container {
    width: 100%;
    height: 5px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
    cursor: pointer;
    position: relative;
}

#sound-bar-progress {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background-color: var(--primary-accent);
    border-radius: 3px;
}

#sound-bar-time {
    font-family: var(--font-jetbrains);
    font-size: 0.75rem;
    color: var(--text-color-light);
    flex-shrink: 0;
}

.sound-bar-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#show-player-btn {
    padding: 0;
    width: 45px;
    height: 45px;
}

.sound-bar-btn.active {
    color: var(--primary-accent);
}
/* =============================================== */
/* ================ POMODORO STYLES ============== */
/* =============================================== */
#pomodoro-goal-tracker {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    display: none !important;
}

#pomodoro-goal-tracker.hidden {
    display: none;
}

.pomodoro-goal-icon {
    font-size: 1rem;
    color: var(--border-color);
    transition: color 0.3s, transform 0.3s;
}

.pomodoro-goal-icon.completed {
    color: var(--primary-accent);
    transform: scale(1.2);
}

/* =============================================== */
/* ================ ANALYTICS PAGE =============== */
/* =============================================== */
.analytics-header {
    width: 100%;
    max-width: 1400px;
    margin-bottom: 2rem;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.analytics-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
}

.analytics-layout {
    display: flex;
    width: 100%;
    max-width: 1400px;
    gap: 2.5rem;
    align-items: flex-start;
}

.analytics-left {
    flex: 3;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.analytics-right {
    flex: 5;
}

.back-btn {
    position: static;
}

.summary-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    width: 100%;
}

.stat-card {
    background-color: var(--modal-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all var(--transition-speed) ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-accent);
}

.stat-card.full-width {
    grid-column: 1 / -1;
}

.stat-card h4 {
    font-size: 0.8rem;
    color: var(--text-color-light);
    margin-bottom: 0.75rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card p {
    font-size: 2rem;
    font-family: var(--font-jetbrains);
    color: var(--primary-accent);
    line-height: 1.2;
}
.stat-card p .unit {
    font-size: 1rem;
    color: var(--text-color-light);
    margin-left: 0.25rem;
}

.chart-card {
    padding-top: 2rem;
}

.chart-container {
    position: relative;
    height: 250px;
    width: 100%;
}

/* =============================================== */
/* ============== ANALYTICS CALENDAR ============= */
/* =============================================== */
#calendar-container {
    width: 100%;
    background-color: var(--modal-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.calendar-header h3 {
    font-size: 1.2rem;
    margin: 0;
    font-weight: 700;
}

.calendar-header button {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 0.9rem;
    cursor: pointer;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    transition: all var(--transition-speed);
}
.calendar-header button:hover {
    border-color: var(--glow-color);
    background-color: var(--input-bg);
}


.calendar-grid-header,
#calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
}

.calendar-grid-header div {
    font-weight: bold;
    color: var(--text-color-light);
    font-size: 0.8rem;
    padding-bottom: 0.5rem;
}

.calendar-day {
    position: relative;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding-top: 100%;
    background-color: var(--calendar-day-bg);
    transition: all var(--transition-speed);
}

.calendar-day.empty {
    background-color: transparent;
    border-color: transparent;
}

.calendar-day .date-number {
    position: absolute;
    top: 5px;
    right: 8px;
    font-size: 0.7rem;
    color: var(--text-color-light);
}

.calendar-day .study-time {
    font-size: .8rem;
    font-weight: bold;
    margin: 10px 10px;
    font-family: var(--font-jetbrains);
    color: var(--primary-accent);
}

.calendar-day .study-time:empty {
    display: none;
}

.calendar-day.today {
    border-color: var(--glow-color);
    box-shadow: 0 0 10px 0 var(--glow-color);
}

.calendar-day:hover:not(.empty) {
    transform: translateY(-3px);
    border-color: var(--glow-color);
}


/* =============================================== */
/* ================ TIMELINE PAGE ================ */
/* =============================================== */
.timeline-header-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin: 0 auto;
}
.timeline-header-controls h3 {
    font-size: 1.2rem;
    width: 200px;
    text-align: center;
}
.timeline-header-controls button {
    background: none; border: 1px solid var(--border-color); color: var(--text-color); font-size: 0.9rem; cursor: pointer; border-radius: 50%; width: 32px; height: 32px;
}

#timeline-container {
    width: 100%;
    max-width: 1400px;
    margin-top: 3rem;
    position: relative;
}

#timeline-bar {
    width: 100%;
    height: 50px;
    background-color: var(--timeline-bar-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}

.session-block {
    position: absolute;
    height: 100%;
    opacity: 0.8;
    transition: opacity 0.2s, transform 0.2s;
    cursor: pointer;
}
.session-block:hover {
    opacity: 1;
    transform: scaleY(1.1);
    z-index: 10;
}

#time-indicator {
    position: absolute;
    width: 2px;
    height: 120%;
    background-color: var(--text-color);
    top: -10%;
    left: 0;
    z-index: 20;
    pointer-events: none;
    box-shadow: 0px 0px 10px var(--text-color);
}

#timeline-hours {
    display: flex;
    justify-content: space-between;
    width: 100%;
    margin-top: 0.5rem;
    padding: 0 5px;
}
#timeline-hours span {
    font-size: 0.75rem;
    color: var(--text-color-light);
}

#timeline-tooltip {
    position: fixed;
    background-color: var(--modal-bg);
    color: var(--text-color);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-speed), transform var(--transition-speed);
    pointer-events: none;
    z-index: 1000;
    transform: translateY(10px);
    border: 1px solid var(--border-color);
}
#timeline-tooltip.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.timeline-summary {
    display: flex;
    justify-content: space-around;
    width: 100%;
    max-width: 800px;
    margin-top: 3rem;
    padding: 1rem;
    background-color: var(--modal-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}
.summary-item {
    text-align: center;
}
.summary-item strong {
    display: block;
    font-size: 0.8rem;
    color: var(--text-color-light);
    margin-bottom: 0.5rem;
}
.summary-item span {
    font-size: 1.2rem;
    font-family: var(--font-jetbrains);
    color: var(--primary-accent);
}

/* =============================================== */
/* ================ MODAL STYLES ================= */
/* =============================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--modal-bg);
    padding: 1.5rem;
    border-radius: 15px;
    width: 90%;
    max-width: 700px;
    position: relative;
    transition: background-color var(--transition-speed);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-header h3 {
    font-size: 1.25rem;
    text-align: left;
}

.modal-header-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.close-modal-btn {
    background: none;
    border: none;
    transition: .3s;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    position: absolute;
    top: 10px;
    right: 15px;
    z-index: 10;
}
.close-modal-btn:hover {
    color: red;
}

.modal-content h3 {
    margin: 0;
    text-align: left;
}

/* =============================================== */
/* ================ CHOICE MODAL ================= */
/* =============================================== */
.choice-modal .modal-content {
    max-width: 450px;
}

.choice-modal .modal-content h3 {
    margin-bottom: 1.5rem;
}

.choice-container {
    display: flex;
    justify-content: space-around;
    align-items: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.choice-btn {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    width: 150px;
    height: 120px;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem;
    font-family: var(--font-family);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed), border-color var(--transition-speed);
}

.choice-btn:hover {
    transform: translateY(-5px);
    border-color: var(--primary-accent);
    box-shadow: 0 0 15px 0px var(--glow-color);
}

.choice-btn i {
    font-size: 2.5rem;
    color: var(--primary-accent);
}

.choice-btn span {
    font-size: 0.9rem;
    font-weight: bold;
}

/* =============================================== */
/* ============== POST-SESSION MODAL ============= */
/* =============================================== */
#post-session-modal .modal-content {
    max-width: 400px;
    text-align: center;
}

#post-session-modal .modal-content h3 {
     margin-bottom: 1.5rem;
}

#post-session-modal p {
    color: var(--text-color-light);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

/* =============================================== */
/* ============= GLOBAL FORM STYLES ============== */
/* =============================================== */
.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}
.form-group label {
    display: block;
    color: var(--text-color-light);
    margin-bottom: 0.5rem;
}
.input-group {
    display: flex;
    gap: 1rem;
}
.form-group input, .form-group select {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
}
.save-btn {
    padding: 0.6rem 1rem;
    background-color: var(--primary-accent);
    color: var(--bg-color);
    border: none;
    border-radius: 5px;
    font-size: 0.9rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s;
    min-width: 120px;
    white-space: nowrap;
}
.save-btn:hover {
    background-color: var(--primary-accent-hover);
}

#setting-font option {
    background-color: var(--modal-bg);
    color: var(--text-color);
    padding: 5px;
}
#setting-font option[value="var(--font-inter)"] { font-family: var(--font-inter); }
#setting-font option[value="var(--font-poppins)"] { font-family: var(--font-poppins); }
#setting-font option[value="var(--font-jetbrains)"] { font-family: var(--font-jetbrains); }
#setting-font option[value="var(--font-space)"] { font-family: var(--font-space); }
#setting-font option[value="var(--font-roboto-slab)"] { font-family: var(--font-roboto-slab); }
#setting-font option[value="var(--font-playfair)"] { font-family: var(--font-playfair); }
#setting-font option[value="var(--font-source-code)"] { font-family: var(--font-source-code); }
#setting-font option[value="var(--font-nunito)"] { font-family: var(--font-nunito); }


/* =============================================== */
/* ================ SETTINGS MODAL =============== */
/* =============================================== */
/* --- NEW: Specific height for settings modal --- */
#settings-modal .modal-content {
    height: 600px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

#settings-modal .close-modal-btn {
    position: static;
    top: auto;
    right: auto;
}

.settings-layout {
    display: flex;
    gap: 2rem;
    /* --- NEW: Make layout fill the fixed height --- */
    flex: 1;
    min-height: 0;
    overflow: hidden;
}
.settings-nav {
    flex-shrink: 0;
    width: 180px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.settings-nav-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-family);
    font-size: 0.9rem;
    color: var(--text-color-light);
    background-color: transparent;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-align: left;
    transition: background-color 0.3s, color 0.3s;
}
.settings-nav-btn:hover {
    background-color: var(--settings-nav-bg);
    color: var(--text-color);
}
.settings-nav-btn.active {
    background-color: var(--settings-nav-active-bg);
    color: var(--text-color);
    font-weight: bold;
}
.settings-nav-btn i {
    width: 20px;
    text-align: center;
    color: var(--primary-accent);
}

.settings-nav-footer {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.settings-nav-footer .icon-btn {
    font-size: 1.1rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    color: var(--text-color-light);
}

.settings-nav-footer .icon-btn:hover {
    color: var(--text-color);
    border-color: var(--primary-accent);
    background-color: var(--input-bg);
    transform: scale(1.05);
    box-shadow: none;
}

.settings-content {
    flex-grow: 1;
    border-left: 1px solid var(--border-color);
    padding-left: 2rem;
    /* --- UPDATED: Let flexbox handle height, enable scroll --- */
    height: 100%; 
    max-height: none; 
    overflow-y: auto;
}
.settings-pane {
    display: none;
}
.settings-pane.active {
    display: block;
}
.settings-pane h4 {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    text-align: left;
}
.settings-pane p {
    color: var(--text-color-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    text-align: left;
    font-size: 0.9rem;
}


/* =============================================== */
/* ========= SETTINGS - BACKGROUND PANE ========== */
/* =============================================== */
.background-options-container h4 {
    font-size: 1rem;
    color: var(--text-color-light);
    margin-bottom: 1rem;
    margin-top: 2rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}
.background-options-container h4:first-child {
    margin-top: 0;
}

.background-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
}

.background-option {
    cursor: pointer;
    border-radius: 10px;
    padding: 5px;
    border: 2px solid transparent;
    transition: border-color 0.3s;
}

.background-option.selected {
    border-color: var(--primary-accent);
}

.background-option .bg-preview {
    width: 100%;
    height: 70px;
    border-radius: 8px;
    background-size: cover;
    background-position: center;
    object-fit: cover;
}
.background-option span {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.8rem;
    text-align: center;
    color: var(--text-color-light);
}

.animated-preview {
    background: linear-gradient(45deg, #0d1b2a, #1b263b, #415a77, #778da9, #023047);
    animation: animated-preview-flow 8s ease infinite;
    background-size: 400% 400%;
}
@keyframes animated-preview-flow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

#custom-bg-uploader {
    margin-top: 1rem;
}
#custom-bg-dropzone {
    border: 2px dashed var(--border-color);
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.3s, background-color 0.3s;
}
#custom-bg-dropzone.dragover {
    border-color: var(--primary-accent);
    background-color: var(--input-bg);
}
#custom-bg-dropzone span {
    color: var(--primary-accent);
    font-weight: bold;
}
#custom-bg-dropzone small {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-color-light);
}

#custom-bg-controls {
    margin-top: 1rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}
#custom-bg-controls .form-group {
    flex-grow: 1;
    margin-bottom: 0;
}
.remove-btn {
    padding: 0.6rem 1rem;
    background-color: var(--error-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

/* =============================================== */
/* =========== SETTINGS - ACCOUNT PANE =========== */
/* =============================================== */
#user-profile-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background-color: var(--input-bg);
    border-radius: 12px;
}

#user-profile-pic {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--border-color);
}

#user-profile-name {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-color);
    margin: 0;
}

#user-profile-email {
    font-size: 0.9rem;
    color: var(--text-color-light);
    margin: 0;
}

.logout-btn {
    width: 100%;
    padding: 0.7rem;
    background-color: var(--input-bg);
    color: var(--error-color);
    border: 1px solid var(--error-color);
    border-radius: 5px;
    font-size: 0.9rem;
    font-weight: bold;
    cursor: pointer;
    margin-top: 1rem;
    transition: background-color 0.3s, color 0.3s;
}

.logout-btn:hover {
    background-color: var(--error-color);
    color: var(--text-color);
}

.user-email {
    color: var(--text-color-light);
    font-size: 0.9rem;
    margin-top: 0;
    margin-bottom: 0.5rem;
    word-break: break-all;
    background: var(--input-bg);
    padding: 0.75rem;
    border-radius: 5px;
    border: 1px solid var(--border-color);
}


/* =============================================== */
/* ================== MUSIC MODAL ================ */
/* =============================================== */
#music-modal .close-modal-btn {
    position: absolute;
    top: 10px;
    right: 15px;
}

.modal-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.tab-link {
    background: none;
    border: none;
    color: var(--text-color-light);
    padding: 0.8rem 1.2rem;
    cursor: pointer;
    font-size: 1rem;
    border-bottom: 2px solid transparent;
    transition: color var(--transition-speed), border-bottom-color var(--transition-speed);
}

.tab-link.active {
    color: var(--text-color);
    border-bottom-color: var(--text-color);
}

.modal-tab-content {
    display: none;
}

.modal-tab-content.active {
    display: block;
}

#youtube-player-container {
    position: absolute;
    top: -9999px;
    left: -9999px;
    width: 0;
    height: 0;
    overflow: hidden;
}

/* =============================================== */
/* ============= MUSIC - AMBIENCE MIXER ========== */
/* =============================================== */
.ambience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.ambience-item {
    background-color: var(--ambience-item-bg);
    border: 1px solid var(--ambience-item-border);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-speed);
    position: relative;
    height: 120px;
}

.ambience-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.ambience-item i {
    font-size: 2.5rem;
    color: var(--ambience-icon-color);
    transition: color var(--transition-speed);
}

.ambience-item.playing i {
    color: var(--ambience-icon-active);
}

.ambience-name {
    font-size: 0.9rem;
    color: var(--text-color-light);
    transition: color var(--transition-speed);
}

.ambience-item.playing .ambience-name {
    color: var(--text-color);
    font-weight: bold;
}

.ambience-volume-slider {
    -webkit-appearance: none;
    width: 80%;
    height: 5px;
    background: var(--ambience-slider-track);
    outline: none;
    border-radius: 5px;
    visibility: hidden;
    opacity: 0;
    transform: scaleY(0);
    transform-origin: bottom;
    transition: all 0.3s ease;
    margin-top: auto;
}

.ambience-item.playing .ambience-volume-slider {
    visibility: visible;
    opacity: 1;
    transform: scaleY(1);
}

.ambience-volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--ambience-slider-thumb);
    cursor: pointer;
    transition: background-color var(--transition-speed);
    border: 1px solid var(--modal-bg);
}

.ambience-volume-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--ambience-slider-thumb);
    cursor: pointer;
    transition: background-color var(--transition-speed);
    border: 1px solid var(--modal-bg);
}

#stop-all-ambience-btn {
    width: 100%;
    padding: 0.7rem;
    background-color: var(--input-bg);
    color: var(--text-color-light);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 0.9rem;
    cursor: pointer;
    margin-top: 1.5rem;
    transition: transform var(--transition-speed), background-color var(--transition-speed), color var(--transition-speed), border-color var(--transition-speed);
}

#stop-all-ambience-btn:hover {
    transform: translateY(-3px);
    background-color: var(--error-color);
    border-color: var(--error-color);
    color: var(--text-color);
}

/* =============================================== */
/* ================ MUSIC - YOUTUBE ============== */
/* =============================================== */
#youtube-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    align-items: flex-end;
}

#youtube-url-input {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 5px;
    flex-grow: 1;
}

#youtube-form button {
    padding: 0.6rem 1rem;
    background-color: var(--text-color);
    color: var(--bg-color);
    border: none;
    border-radius: 5px;
    font-weight: bold;
    cursor: pointer;
    white-space: nowrap;
    transition: transform var(--transition-speed), background-color var(--transition-speed);
}

#youtube-form button:hover {
    transform: scale(1.05);
    background-color: var(--primary-accent);
}

#youtube-volume-control {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    color: var(--text-color-light);
}

#youtube-volume-slider {
    width: 100%;
}

#youtube-list {
    max-height: 40vh;
    overflow-y: auto;
    padding-right: 10px;
}

.yt-item {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    padding: 0.75rem;
    border-radius: 8px;
    background-color: var(--input-bg);
    margin-bottom: 0.5rem;
    cursor: pointer;
    border-left: 4px solid transparent;
    transition: transform 0.2s ease, background-color 0.2s, border-color 0.3s;
}

.yt-item:hover {
    background-color: var(--settings-nav-bg);
    transform: translateX(5px);
}

.yt-item.playing {
    border-left-color: var(--primary-accent);
    font-weight: bold;
}

.yt-item-thumb-wrapper {
    position: relative;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    margin-right: 15px;
}

.yt-item-thumbnail {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.yt-item .type-icon {
    position: absolute;
    bottom: 0;
    right: 0;
    font-size: 0.8rem;
    color: var(--bg-color);
    background-color: var(--primary-accent);
    padding: 0.2rem;
    border-radius: 50%;
    border: 1px solid var(--bg-color);
}

.yt-item.playing .yt-item-thumbnail {
    animation: spin 4s linear infinite;
}

.yt-item-title {
    flex-grow: 1;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.yt-item-controls {
    margin-left: auto;
}

.yt-delete-btn {
    background: none;
    border: none;
    color: #666;
    font-size: 1rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.2s;
}

.yt-delete-btn:hover {
    color: var(--error-color);
}

.yt-item.expanded {
    border-left-color: var(--primary-accent);
}

.playlist-details {
    width: 100%;
    margin-top: 0.75rem;
    padding-left: 1rem;
    border-left: 2px solid var(--border-color);
    max-height: 250px;
    overflow-y: auto;
}

.yt-playlist-song {
    display: flex;
    align-items: center;
    padding: 0.6rem 0.5rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.yt-playlist-song:hover {
    background-color: var(--ambience-item-bg);
}

.yt-playlist-song.playing {
    background-color: var(--ambience-item-bg);
    font-weight: bold;
    color: var(--primary-accent);
}

.yt-playlist-song-thumb {
    width: 30px;
    height: 30px;
    border-radius: 5px;
    object-fit: cover;
    margin-right: 10px;
    flex-shrink: 0;
}

.yt-playlist-song-title {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.9rem;
}

.playlist-loader {
    width: 100%;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-color-light);
    margin-top: 0.5rem;
    padding: 0.5rem;
}

/* =============================================== */
/* ============= NOTES (TO-DO) MODALS ============ */
/* =============================================== */

/* Overview Modal */
.notes-overview-content {
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.notes-overview-header {
    display: flex;
    justify-content: center;
    margin: 0rem 0px 0.5rem 0;
    text-align: left;
    display: flex;
    align-items: left;
}

.add-todo-btn {
    background-color: transparent;
    color: var(--ambience-icon-active);
    border: none;
    border-radius: 25px;
    border: 1.5px solid var(--ambience-icon-active);
    padding: 0.5rem 1rem;
    font-size: 1rem;
    font-weight: bold;
    font-family: inherit;
    cursor: pointer;
    align-items: center;
    transition: transform 0.2s, box-shadow 0.2s;
    float: left;
}
.add-todo-btn:hover {
    transform: scale(1.03);
    box-shadow: 0 0 15px 0px var(--glow-color);
    color: black;
    background: var(--ambience-icon-active);
    border: none;
}


#notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
    overflow-y: auto;
    padding: 0.5rem;
    width: 100%;
    flex-grow: 1;
    min-height: 100px;
}

.note-card {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    text-align: left;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    height: fit-content;
}
.note-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.note-card h3 {
    font-size: 1.1rem;
    font-weight: bold;
    margin-bottom: 0.75rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    border-bottom: 1px solid white;
    padding: 0px 0px 4px 0px;
    width: 100%;
}
.note-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.note-card li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-color-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.note-card li i {
    font-size: 0.8rem;
    color: var(--text-color);
    flex-shrink: 0;
}
.note-card li.checked {
    text-decoration: line-through;
    opacity: 0.6;
}

/* Editor Modal */
.note-editor-content {
    max-width: 600px;
    width: 90%;
    display: flex;
    flex-direction: column;
    max-height: 70vh;
}

.editor-title-input {
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    font-weight: bold;
    padding: 0.5rem 0;
    margin-bottom: 1rem;
    outline: none;
    width: 100%;
    border-bottom: 1px solid var(--border-color);
}
.editor-title-input:focus {
    border-bottom-color: var(--primary-accent);
}

#editor-list-items {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    overflow-y: auto;
    flex-grow: 1;
    min-height: 100px;
    padding-right: 5px;
}

.editor-list-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.25rem 0;
}
.editor-list-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    accent-color: var(--primary-accent);
}
.editor-list-item-text {
    flex-grow: 1;
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    padding: 0.4rem 0;
    border-bottom: 1px solid transparent;
}
.editor-list-item-text:focus {
    border-bottom: 1px solid var(--border-color);
}
.editor-list-item-text.checked {
    text-decoration: line-through;
    opacity: 0.6;
}

.delete-item-btn {
    background: none;
    border: none;
    color: var(--text-color-light);
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s, color 0.2s;
}
.editor-list-item:hover .delete-item-btn {
    opacity: 1;
}
.delete-item-btn:hover {
    color: var(--error-color);
}

.add-list-item-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: none;
    border: none;
    color: var(--text-color-light);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.75rem 0.25rem;
    text-align: left;
    transition: color 0.3s;
}
.add-list-item-btn:hover {
    color: var(--text-color);
}

.note-editor-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.note-editor-footer-buttons {
    display: flex;
    gap: 0.75rem;
}

.note-delete-btn, .note-ok-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s, border-color 0.3s, color 0.3s;
}

.note-ok-btn {
    border-color: var(--primary-accent);
    color: var(--primary-accent);
}
.note-ok-btn:hover {
    background-color: var(--primary-accent);
    color: var(--bg-color);
}

.note-delete-btn:hover {
    background-color: var(--error-color);
    border-color: var(--error-color);
    color: var(--text-color);
}

.note-close-btn {
    display: none;
}

#editor-save-status {
    font-size: 0.9rem;
    color: var(--text-color-light);
    transition: opacity 0.3s;
    opacity: 0;
}

/* =============================================== */
/* =============== USER GUIDE MODAL ============== */
/* =============================================== */
.user-guide-content {
    max-width: 700px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.user-guide-content .modal-header h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--primary-accent);
}

.guide-content {
    width: 100%;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    text-align: left;
    padding-right: 1rem;
}

.guide-section {
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
}
.guide-section:last-child {
    border-bottom: none;
}

.guide-section h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.guide-section h4 i {
    color: var(--primary-accent);
}

.guide-section p {
    color: var(--text-color-light);
    line-height: 1.6;
    margin-bottom: 1rem;
}
.guide-section ul {
    list-style-position: inside;
    padding-left: 0.5rem;
    margin-bottom: 1rem;
}
.guide-section li {
    color: var(--text-color-light);
    margin-bottom: 0.5rem;
    line-height: 1.6;
}
.guide-section strong {
    color: var(--text-color);
    font-weight: 700;
}
.guide-section em {
    font-style: italic;
    color: var(--primary-accent-hover);
}

.keybind-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 0.75rem;
}

.keybind {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background-color: var(--input-bg);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.keybind span {
    background-color: var(--settings-nav-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.2rem 0.6rem;
    font-family: var(--font-jetbrains);
    font-weight: bold;
    color: var(--text-color);
    font-size: 0.9rem;
}

/* =============================================== */
/* ============ FOCUS (FULLSCREEN) MODE ========== */
/* =============================================== */
body.focus-mode {
    /*cursor: none;*/
}


body.focus-mode #timer-page {
    justify-content: center;
    padding: 0;
    overflow: hidden;
}

body.focus-mode .timer-wrapper {
    flex-grow: 0;
}

body.focus-mode #time-display {
    font-size: 30vh;
    line-height: 1;
    width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: clip;
}

body.focus-mode #ampm-display,
body.focus-mode #timer-mode-display {
    display: none !important;
}

body.focus-mode .bottom-container,
body.focus-mode .main-controls {
    display: none !important;
}

body.focus-mode #notes-toggle-btn {
    display: none !important;
}

/* --- NEW: Hide date countdown in focus mode --- */
body.focus-mode #date-countdown {
    display: none !important;
}


/* =============================================== */
/* ============ RESPONSIVE DESIGN ================ */
/* =============================================== */
@media (max-width: 1200px) {
    .analytics-layout {
        flex-direction: column;
    }
    .analytics-left, .analytics-right {
        flex: 1;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .page {
        padding: 1rem;
    }
    
    /* --- UPDATED: Hide mini clock AND date countdown on mobile --- */
    #date-countdown {
        display: none !important;
    }
    #mini-clock {
        display: none !important;
    }
    /* --- End of Update --- */

    .corner-btn {
        bottom: auto !important;
        top: 15px !important;
        width: 40px;
        height: 40px;
    }
    .corner-btn.left { left: 15px !important; }
    .corner-btn.right { right: 15px !important; }


    .back-btn {
        top: 1rem;
        left: 1rem;
        position: absolute;
    }

    #time-display {
        font-size: clamp(3.5rem, 14vw, 6rem);
    }

    #ampm-display {
        font-size: 6vw;
    }
    .icon-bar {
        gap: 0.5rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    .icon-btn {
        font-size: 1.2rem;
        padding: 0.6rem 1rem;
    }

    .bottom-container {
        padding: 1rem 0;
    }

    #sound-bar {
        width: 95%;
        gap: 0.5rem;
        padding: 0.5rem;
    }
    
    #sound-bar-time {
        display: none;
    }
    .modal-content {
        width: 95%;
        max-height: 90vh;
        overflow-y: auto;
        padding: 1.5rem 1rem;
    }
    .settings-layout {
        flex-direction: column;
        gap: 1rem;
    }
    .settings-nav {
        flex-direction: row;
        width: 100%;
        overflow-x: auto;
        padding-bottom: 10px;
        white-space: nowrap;
    }
    .settings-nav-btn {
        display: inline-flex;
        width: auto;
    }
    .settings-content {
        border-left: none;
        padding-left: 0;
    }
    #youtube-form {
        flex-direction: column;
        align-items: stretch;
    }

    .ambience-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }
    .ambience-item {
        padding: 0.75rem;
        height: 100px;
    }
    .ambience-item i {
        font-size: 2rem;
    }
    .ambience-name {
        font-size: 0.8rem;
    }

    .summary-stats {
        grid-template-columns: 1fr 1fr;
    }
    .stat-card p {
        font-size: 1.5rem;
    }
     .stat-card h4 {
        font-size: 0.7rem;
    }
    .calendar-day .study-time {
        font-size: 0.8rem;
    }

    .calendar-grid-header,
    #calendar-grid {
        gap: 4px;
    }

    .timeline-summary {
        flex-direction: column;
        gap: 1rem;
    }
    
    .choice-container {
        flex-direction: column;
        gap: 1rem;
    }
    .choice-btn {
        width: 100%;
        height: auto;
        padding: 1.5rem;
    }

    body.focus-mode #time-display {
        font-size: clamp(4rem, 20vw, 8rem);
        line-height: 1.1;
    }
    
    body.focus-mode #fullscreen-toggle-btn {
        display: none !important;
    }
}

@media (max-width: 480px) {
    .page {
        padding: 0.5rem;
    }
    .analytics-layout {
        gap: 1.5rem;
    }
    .summary-stats {
        grid-template-columns: 1fr;
    }
    .stat-card {
        padding: 1rem;
    }

    #time-display {
        font-size: clamp(3rem, 12vw, 5rem);
    }

    body.focus-mode #time-display {
        font-size: clamp(3.5rem, 18vw, 7rem);
    }
    
    #timer-mode-display {
        font-size: 1rem;
    }
    
    .keybind-grid {
        grid-template-columns: 1fr;
    }

    #notes-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-tabs {
        font-size: 0.9rem;
    }
    .tab-link {
        padding: 0.7rem 0.5rem;
        flex-grow: 1;
    }
}


/* =============================================== */
/* ================ SCROLLBAR STYLES ============= */
/* =============================================== */
::-webkit-scrollbar {
  width: 5px;
  height: 8px;
  background-color: #0000001c;
}

::-webkit-scrollbar-thumb {
  background-color: rgb(255 255 255 / 17%);
  border-radius: 8px;
}

::-webkit-scrollbar-thumb:hover {
  background-color: rgb(163 163 163 / 65%);
}

::-webkit-scrollbar-track {
  background-color: transparent;
}


/* === ADVANCED TO-DO LIST STYLESa === */

.editor-list-item {
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: 6px;
    padding: 0.5rem 0.5rem !important;
    margin-bottom: 0.5rem;
    transition: background-color 0.2s, transform 0.2s;
    border: 1px solid transparent;
}

.editor-list-item:hover {
    background-color: rgba(255, 255, 255, 0.06);
    border-color: var(--border-color);
}

/* The Drag Handle (Grip) */
.drag-handle {
    color: var(--text-color-light);
    cursor: grab;
    padding: 0 0.5rem;
    opacity: 0.3;
    transition: opacity 0.2s;
    font-size: 0.9rem;
}
.editor-list-item:hover .drag-handle {
    opacity: 0.8;
}
.drag-handle:active {
    cursor: grabbing;
}

/* Pomodoro Estimator (The Tomatoes) */
.pomo-estimator {
    display: flex;
    gap: 3px;
    margin-right: 10px;
    cursor: pointer;
    opacity: 0.3; /* Dim when 0 */
    transition: opacity 0.2s;
}
.pomo-estimator:hover, 
.pomo-estimator.active {
    opacity: 1;
}

.pomo-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--border-color);
    transition: background-color 0.2s, transform 0.2s;
}

/* Active state (Red/Accent Color) */
.pomo-dot.filled {
    background-color: var(--error-color); /* Red for Pomodoro */
    box-shadow: 0 0 5px var(--error-color);
}

/* When dragging an item */
.sortable-ghost {
    opacity: 0.4;
    background-color: var(--primary-accent);
}

/* =============================================== */
/* ============== PiP HIDDEN ASSETS ============== */
/* =============================================== */
#pip-hidden-container {
    position: absolute;
    top: -9999px;
    left: -9999px;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
}