/**
 * ═══════════════════════════════════════════════════════════════════════════════
 * DIVINE DESIGN SYSTEM
 * Sacred Color Palette & Divine Animations for Sehaj Paath
 * 
 * This CSS implements the specified Sacred Design Philosophy:
 * 🕉️ DEVOTION - Every pixel serves the sacred purpose
 * 🕉️ TRUST - User's spiritual progress is never compromised
 * 🕉️ CALM - Interface induces peaceful, meditative state
 * 🕉️ DISCIPLINE - Logic is precise, predictable, reliable
 * 🕉️ BEAUTY - Aesthetics that honor Sri Guru Granth Sahib Ji
 * ═══════════════════════════════════════════════════════════════════════════════
 */

/* ═══════════════════════════════════════════════════════════════════════════════
   DIVINE COLOR SYSTEM
   ═══════════════════════════════════════════════════════════════════════════════ */

:root {
    /* ─── Sacred Gradients ─── */
    --gradient-divine: linear-gradient(135deg,
            #0D0D0D 0%,
            #1A1A2E 25%,
            #16213E 50%,
            #0F3460 75%,
            #1A1A2E 100%);

    --gradient-golden-hour: linear-gradient(180deg,
            rgba(255, 149, 0, 0.15) 0%,
            rgba(255, 204, 0, 0.08) 50%,
            transparent 100%);

    --gradient-saffron-glow: radial-gradient(ellipse at center,
            rgba(255, 149, 0, 0.2) 0%,
            rgba(255, 149, 0, 0.05) 50%,
            transparent 70%);

    /* ─── Primary Sacred Colors ─── */
    --saffron-primary: #FF9500;
    --saffron-light: #FFB340;
    --saffron-dark: #CC7700;
    --saffron-glow: rgba(255, 149, 0, 0.4);

    --royal-blue: #1E3A8A;
    --royal-blue-light: #3B82F6;
    --royal-blue-dark: #1E40AF;

    --gold-sacred: #D4AF37;
    --gold-light: #F4D03F;
    --gold-warm: #B8860B;

    /* ─── Spiritual Accent Colors ─── */
    --spiritual-white: #FEFEFE;
    --spiritual-cream: #FFF8E7;
    --spiritual-pearl: #F5F5F0;

    --deep-maroon: #722F37;
    --lotus-pink: #E91E63;
    --forest-green: #228B22;

    /* ─── Gurmukhi Text Colors ─── */
    --gurmukhi-dark: #2C1810;
    --gurmukhi-light: #FFE4B5;
    --gurmukhi-gold: #DAA520;
    --gurmukhi-saffron: #FF8C00;

    /* ─── Glass Morphism ─── */
    --glass-white: rgba(255, 255, 255, 0.08);
    --glass-white-hover: rgba(255, 255, 255, 0.12);
    --glass-white-active: rgba(255, 255, 255, 0.16);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-strong: rgba(255, 255, 255, 0.2);

    --glass-saffron: rgba(255, 149, 0, 0.1);
    --glass-saffron-hover: rgba(255, 149, 0, 0.15);

    /* ─── Semantic Colors ─── */
    --success-green: #30D158;
    --success-glow: rgba(48, 209, 88, 0.3);

    --warning-amber: #FFD60A;
    --warning-glow: rgba(255, 214, 10, 0.3);

    --error-red: #FF453A;
    --error-glow: rgba(255, 69, 58, 0.3);

    --info-blue: #0A84FF;
    --info-glow: rgba(10, 132, 255, 0.3);

    /* ─── Progress & Streaks ─── */
    --streak-fire: #FF6B35;
    --streak-glow: rgba(255, 107, 53, 0.4);

    --progress-gradient: linear-gradient(90deg,
            #FF9500 0%,
            #FFB340 50%,
            #D4AF37 100%);

    /* ─── Shadow System ─── */
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-medium: 0 8px 32px rgba(0, 0, 0, 0.25);
    --shadow-strong: 0 16px 48px rgba(0, 0, 0, 0.35);
    --shadow-glow-saffron: 0 0 40px rgba(255, 149, 0, 0.3);
    --shadow-glow-gold: 0 0 30px rgba(212, 175, 55, 0.25);
    --shadow-inner: inset 0 2px 10px rgba(0, 0, 0, 0.2);

    /* ─── Animation Timing ─── */
    --ease-smooth: cubic-bezier(0.25, 0.1, 0.25, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ease-ios: cubic-bezier(0.32, 0.72, 0, 1);
    --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);

    --duration-instant: 100ms;
    --duration-fast: 200ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
    --duration-slower: 800ms;
}

/* ─── Theme-Specific Variables ─── */

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #FFFBF5;
    --bg-secondary: #FFF8EE;
    --bg-paper: #FFFEF9;
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --text-gurmukhi: var(--gurmukhi-dark);
    --glass-bg: rgba(255, 255, 255, 0.95);
    --glass-border: rgba(0, 0, 0, 0.08);
}

/* Dark Theme (Default) */
[data-theme="dark"] {
    --bg-primary: #0A0A0A;
    --bg-secondary: #1C1C1E;
    --bg-elevated: #2C2C2E;
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-gurmukhi: var(--gurmukhi-light);
    --glass-bg: rgba(255, 255, 255, 0.08);
}

/* Sepia Theme */
[data-theme="sepia"] {
    --bg-primary: #F4ECD8;
    --bg-secondary: #E8DCC8;
    --text-primary: #5C4033;
    --text-secondary: #8B7355;
    --text-gurmukhi: var(--gurmukhi-dark);
    --glass-bg: rgba(244, 236, 216, 0.95);
    --glass-border: rgba(139, 90, 43, 0.15);
}

/* OLED Theme */
[data-theme="oled"] {
    --bg-primary: #000000;
    --bg-secondary: #0A0A0A;
    --text-primary: #E5E5E5;
    --text-secondary: rgba(255, 255, 255, 0.6);
    --text-gurmukhi: #FFD700;
    --glass-bg: rgba(255, 255, 255, 0.05);
}

/* ═══════════════════════════════════════════════════════════════════════════════
   DIVINE ANIMATIONS
   ═══════════════════════════════════════════════════════════════════════════════ */

/* ─── Page Entry Animation ─── */
@keyframes divineEntry {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
        filter: blur(10px);
    }

    60% {
        opacity: 0.8;
        transform: translateY(-5px) scale(1.01);
        filter: blur(0);
    }

    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
    }
}

/* ─── Gurbani Text Reveal ─── */
@keyframes gurmukhiReveal {
    0% {
        opacity: 0;
        transform: translateY(20px);
        letter-spacing: 0.5em;
    }

    50% {
        opacity: 0.7;
        letter-spacing: 0.1em;
    }

    100% {
        opacity: 1;
        transform: translateY(0);
        letter-spacing: normal;
    }
}

/* ─── Sacred Glow Pulse ─── */
@keyframes sacredGlow {

    0%,
    100% {
        box-shadow:
            0 0 20px var(--saffron-glow),
            0 0 40px transparent;
    }

    50% {
        box-shadow:
            0 0 30px var(--saffron-glow),
            0 0 60px rgba(255, 149, 0, 0.2);
    }
}

/* ─── Ik Onkar Symbol Animation ─── */
@keyframes ikOnkarBreath {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.9;
        text-shadow: 0 0 30px var(--gold-sacred);
    }

    50% {
        transform: scale(1.05);
        opacity: 1;
        text-shadow: 0 0 50px var(--gold-sacred), 0 0 80px rgba(212, 175, 55, 0.5);
    }
}

/* ─── Progress Ring Animation ─── */
@keyframes progressRingFill {
    from {
        stroke-dashoffset: 440;
    }

    to {
        stroke-dashoffset: var(--progress-offset);
    }
}

@keyframes progressRingPulse {

    0%,
    100% {
        filter: drop-shadow(0 0 5px var(--saffron-primary));
    }

    50% {
        filter: drop-shadow(0 0 15px var(--saffron-primary));
    }
}

/* ─── Page Turn Animation ─── */
@keyframes pageSlideLeft {
    0% {
        transform: translateX(0);
        opacity: 1;
    }

    100% {
        transform: translateX(-100%);
        opacity: 0;
    }
}

@keyframes pageSlideRight {
    0% {
        transform: translateX(100%);
        opacity: 0;
    }

    100% {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ─── Bookmark Pop Animation ─── */
@keyframes bookmarkPop {
    0% {
        transform: scale(1);
    }

    25% {
        transform: scale(1.4) rotate(-10deg);
    }

    50% {
        transform: scale(1.2) rotate(5deg);
    }

    75% {
        transform: scale(1.3) rotate(-3deg);
    }

    100% {
        transform: scale(1) rotate(0);
    }
}

@keyframes bookmarkShine {
    0% {
        background-position: -100% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

/* ─── Streak Fire Animation ─── */
@keyframes fireFlicker {

    0%,
    100% {
        transform: scale(1) rotate(-2deg);
        filter: brightness(1);
    }

    25% {
        transform: scale(1.1) rotate(1deg);
        filter: brightness(1.2);
    }

    50% {
        transform: scale(1.05) rotate(-1deg);
        filter: brightness(1.1);
    }

    75% {
        transform: scale(1.08) rotate(2deg);
        filter: brightness(1.15);
    }
}

/* ─── Loading Meditation ─── */
@keyframes meditationBreath {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.6;
    }

    50% {
        transform: scale(1.2);
        opacity: 1;
    }
}

/* ─── Floating Particles ─── */
@keyframes floatParticle {

    0%,
    100% {
        transform: translateY(0) translateX(0);
        opacity: 0.3;
    }

    25% {
        transform: translateY(-20px) translateX(10px);
        opacity: 0.6;
    }

    50% {
        transform: translateY(-40px) translateX(-5px);
        opacity: 0.4;
    }

    75% {
        transform: translateY(-20px) translateX(-10px);
        opacity: 0.5;
    }
}

/* ─── Achievement Unlock ─── */
@keyframes achievementUnlock {
    0% {
        transform: scale(0) rotate(-180deg);
        opacity: 0;
    }

    50% {
        transform: scale(1.3) rotate(10deg);
        opacity: 1;
    }

    70% {
        transform: scale(0.9) rotate(-5deg);
    }

    100% {
        transform: scale(1) rotate(0);
        opacity: 1;
    }
}

@keyframes achievementGlow {

    0%,
    100% {
        box-shadow: 0 0 20px var(--gold-sacred);
    }

    50% {
        box-shadow: 0 0 40px var(--gold-sacred), 0 0 60px rgba(212, 175, 55, 0.5);
    }
}

/* ─── Ripple Effect ─── */
@keyframes rippleExpand {
    0% {
        transform: scale(0);
        opacity: 0.5;
    }

    100% {
        transform: scale(4);
        opacity: 0;
    }
}

/* ─── Slide Panel ─── */
@keyframes slidePanelIn {
    0% {
        transform: translateX(100%);
        opacity: 0;
    }

    100% {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slidePanelOut {
    0% {
        transform: translateX(0);
        opacity: 1;
    }

    100% {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* ─── Modal Entrance ─── */
@keyframes modalEntry {
    0% {
        opacity: 0;
        transform: scale(0.8) translateY(50px);
        filter: blur(10px);
    }

    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
        filter: blur(0);
    }
}

/* ─── Skeleton Loading ─── */
@keyframes skeletonShimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

/* ─── Success Checkmark ─── */
@keyframes checkmarkDraw {
    0% {
        stroke-dashoffset: 100;
    }

    100% {
        stroke-dashoffset: 0;
    }
}

/* ─── Toast Notification ─── */
@keyframes toastSlideIn {
    0% {
        transform: translateY(100%) translateX(-50%);
        opacity: 0;
    }

    100% {
        transform: translateY(0) translateX(-50%);
        opacity: 1;
    }
}

@keyframes toastSlideOut {
    0% {
        transform: translateY(0) translateX(-50%);
        opacity: 1;
    }

    100% {
        transform: translateY(100%) translateX(-50%);
        opacity: 0;
    }
}

/* ═══════════════════════════════════════════════════════════════════════════════
   UTILITY CLASSES
   ═══════════════════════════════════════════════════════════════════════════════ */

/* Apply divine entry animation */
.animate-divine-entry {
    animation: divineEntry 0.6s var(--ease-ios) forwards;
}

/* Apply gurmukhi reveal animation */
.animate-gurmukhi-reveal {
    animation: gurmukhiReveal 0.8s var(--ease-smooth) forwards;
}

/* Sacred glow effect */
.sacred-glow {
    animation: sacredGlow 3s ease-in-out infinite;
}

/* Ik Onkar breathing */
.ik-onkar-breath {
    animation: ikOnkarBreath 4s ease-in-out infinite;
}

/* Streak fire effect */
.streak-fire {
    animation: fireFlicker 0.5s ease-in-out infinite;
}

/* Loading meditation */
.meditation-breath {
    animation: meditationBreath 3s ease-in-out infinite;
}

/* Skeleton loading shimmer */
.skeleton-shimmer {
    background: linear-gradient(90deg,
            var(--glass-bg) 25%,
            var(--glass-white-hover) 50%,
            var(--glass-bg) 75%);
    background-size: 200% 100%;
    animation: skeletonShimmer 1.5s linear infinite;
}

/* Modal entry animation */
.modal-animate-in {
    animation: modalEntry 0.4s var(--ease-spring) forwards;
}

/* Bookmark pop animation */
.bookmark-pop {
    animation: bookmarkPop 0.5s var(--ease-spring) forwards;
}

/* Achievement unlock animation */
.achievement-unlock {
    animation: achievementUnlock 0.8s var(--ease-spring) forwards;
}

/* ═══════════════════════════════════════════════════════════════════════════════
   RESPONSIVE DESIGN
   ═══════════════════════════════════════════════════════════════════════════════ */

/* Font Scaling */
:root {
    --gurmukhi-base-size: clamp(1.2rem, 4vw, 2rem);
    --translation-base-size: clamp(0.875rem, 2.5vw, 1.125rem);
    --ui-base-size: clamp(0.875rem, 2vw, 1rem);
}

/* Safe Areas (for notched phones) */
.reader-container,
.sehaj-paath-container {
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
}

/* ═══════════════════════════════════════════════════════════════════════════════
   ENHANCED UI COMPONENTS
   ═══════════════════════════════════════════════════════════════════════════════ */

/* Beautiful Loading State */
.divine-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    gap: 20px;
}

.divine-loading .ik-onkar {
    font-size: 48px;
    color: var(--gold-sacred);
    animation: ikOnkarBreath 4s ease-in-out infinite;
}

.divine-loading-text {
    font-family: var(--font-gurmukhi);
    font-size: 18px;
    color: var(--text-secondary);
}

.divine-loading-bar {
    width: 120px;
    height: 3px;
    background: var(--glass-bg);
    border-radius: 2px;
    overflow: hidden;
}

.divine-loading-bar::after {
    content: '';
    display: block;
    width: 40%;
    height: 100%;
    background: var(--progress-gradient);
    animation: loadingSlide 1.5s ease-in-out infinite;
}

@keyframes loadingSlide {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(350%);
    }
}

/* Premium Toast Notification */
.divine-toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    padding: 14px 24px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    box-shadow: var(--shadow-medium);
    animation: toastSlideIn 0.3s var(--ease-ios) forwards;
    z-index: 10000;
}

.divine-toast.toast-success {
    background: linear-gradient(135deg, rgba(48, 209, 88, 0.2), rgba(48, 209, 88, 0.1));
    border-color: var(--success-green);
}

.divine-toast.toast-warning {
    background: linear-gradient(135deg, rgba(255, 214, 10, 0.2), rgba(255, 214, 10, 0.1));
    border-color: var(--warning-amber);
}

.divine-toast.toast-error {
    background: linear-gradient(135deg, rgba(255, 69, 58, 0.2), rgba(255, 69, 58, 0.1));
    border-color: var(--error-red);
}

.divine-toast-exit {
    animation: toastSlideOut 0.3s var(--ease-ios) forwards;
}

/* Enhanced Progress Ring */
.progress-ring-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.progress-ring {
    transform: rotate(-90deg);
}

.progress-ring-bg {
    fill: none;
    stroke: var(--glass-bg);
    stroke-width: 6;
}

.progress-ring-fill {
    fill: none;
    stroke: url(#progressGradient);
    stroke-width: 6;
    stroke-linecap: round;
    stroke-dasharray: 440;
    stroke-dashoffset: 440;
    transition: stroke-dashoffset 0.8s var(--ease-smooth);
    filter: drop-shadow(0 0 6px var(--saffron-glow));
}

.progress-ring-text {
    position: absolute;
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

/* Streak Badge */
.streak-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: linear-gradient(135deg, var(--streak-fire), var(--saffron-primary));
    border-radius: 20px;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    box-shadow: 0 4px 12px var(--streak-glow);
}

.streak-badge .fire-icon {
    animation: fireFlicker 0.5s ease-in-out infinite;
}

/* Beautiful Buttons */
.btn-divine {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--saffron-primary), var(--saffron-dark));
    border: none;
    border-radius: 14px;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s var(--ease-ios);
    box-shadow: 0 4px 20px var(--saffron-glow);
}

.btn-divine:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px var(--saffron-glow);
}

.btn-divine:active {
    transform: scale(0.98);
}

.btn-divine-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    background: var(--glass-bg);
    border: 2px solid var(--saffron-primary);
    border-radius: 14px;
    color: var(--saffron-primary);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s var(--ease-ios);
}

.btn-divine-outline:hover {
    background: var(--glass-saffron);
    transform: translateY(-2px);
}

/* Glass Cards */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 20px;
    transition: all 0.3s var(--ease-ios);
}

.glass-card:hover {
    border-color: var(--glass-border-strong);
    box-shadow: var(--shadow-medium);
}

.glass-card-glow {
    box-shadow: var(--shadow-glow-saffron);
}