/* Possível limpeza futura: revisar estilos não utilizados após estabilizar a landing page. */
:root {
    --gold: #B89A5E;
    --gold-light: #EFE3C7;
    --gold-dark: #7A653D;
}

* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: #0A0A0A;
    color: #f5f5f5;
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
}

.section-container {
    width: 100%;
    max-width: 72rem;
    margin-left: auto;
    margin-right: auto;
}

.font-serif {
    font-family: 'Playfair Display', serif;
}

/* Glassmorphism */
.glass {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.glass-gold {
    background: rgba(184, 154, 94, 0.07);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    border: 1px solid rgba(184, 154, 94, 0.18);
}

.glass-light {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.10);
}

/* Gold gradient text */
.text-gold-gradient {
    background: linear-gradient(135deg, #F1E8D2 0%, #B89A5E 45%, #7A653D 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gold-line {
    background: linear-gradient(90deg, transparent, rgba(184, 154, 94, 0.45), transparent);
}

.footer-go-link {
    display: inline-block;
    margin-top: 2rem;
}

.footer-go-logo {
    width: 118px;
    height: auto;
    opacity: 0.82;
}

.footer-go-logo-light {
    display: flex;
}

.footer-go-logo-dark {
    display: block;
}

/* Animated background glow */
.glow-gold {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(184, 154, 94, 0.13) 0%, rgba(184, 154, 94, 0) 70%);
    filter: blur(60px);
    pointer-events: none;
}

.glow-white {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
    filter: blur(80px);
    pointer-events: none;
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 {
    transition-delay: 0.1s;
}

.reveal-delay-2 {
    transition-delay: 0.2s;
}

.reveal-delay-3 {
    transition-delay: 0.3s;
}

.reveal-delay-4 {
    transition-delay: 0.4s;
}

/* Premium button */
.btn-gold {
    position: relative;
    background: linear-gradient(135deg, #2B261D 0%, #5F4F32 100%);
    color: #F8F1E3;
    font-weight: 600;
    letter-spacing: 0.05em;
    border: 1px solid rgba(239, 227, 199, 0.28);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 12px 34px rgba(43, 38, 29, 0.18);
}

.btn-gold:hover {
    transform: translateY(-2px);
    background: linear-gradient(135deg, #3A3326 0%, #6E5B39 100%);
    box-shadow: 0 16px 42px rgba(43, 38, 29, 0.24);
}

.btn-outline-gold {
    border: 1px solid rgba(122, 101, 61, 0.28);
    color: #5F4F32;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    background: rgba(255, 255, 255, 0.44);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.btn-outline-gold:hover {
    background: rgba(255, 255, 255, 0.72);
    border-color: rgba(122, 101, 61, 0.44);
    transform: translateY(-2px);
}

.nav-cta {
    background: rgba(43, 38, 29, 0.92);
    color: #F8F1E3;
    border: 1px solid rgba(239, 227, 199, 0.20);
    box-shadow: none;
    letter-spacing: 0.02em;
    text-transform: none;
    font-weight: 500;
}

.nav-cta:hover {
    background: rgba(95, 79, 50, 0.96);
    box-shadow: 0 10px 26px rgba(43, 38, 29, 0.18);
}

/* Card hover effect */
.program-card {
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.program-card:hover {
    transform: translateY(-6px);
    border-color: rgba(184, 154, 94, 0.28);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.34), 0 0 34px rgba(184, 154, 94, 0.06);
}

.lecture-section {
    position: relative;
    overflow: hidden;
    padding: clamp(2rem, 5vw, 3.5rem);
    border: 1px solid rgba(184, 154, 94, 0.20);
    border-radius: 2rem;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.055), rgba(184, 154, 94, 0.055)),
        rgba(255, 255, 255, 0.035);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
}

.lecture-bg-orb {
    position: absolute;
    right: -10%;
    top: -18%;
    width: 32rem;
    height: 32rem;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(184, 154, 94, 0.18), transparent 68%);
    filter: blur(30px);
    pointer-events: none;
}

.lecture-topline {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 2rem;
}

.lecture-icon-wrap {
    width: 3.5rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(184, 154, 94, 0.20);
    border-radius: 1.25rem;
    color: #D8C28F;
    background: rgba(184, 154, 94, 0.08);
}

.lecture-topline>span {
    padding: 0.45rem 0.8rem;
    border: 1px solid rgba(184, 154, 94, 0.18);
    border-radius: 999px;
    color: rgba(216, 194, 143, 0.74);
    background: rgba(184, 154, 94, 0.07);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.lecture-hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: clamp(1.75rem, 4vw, 3rem);
    align-items: center;
}

.lecture-eyebrow {
    margin: 0 0 1rem;
    color: rgba(216, 194, 143, 0.76);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    line-height: 1.6;
    text-transform: uppercase;
}

.lecture-quote {
    margin: 0 0 2rem;
    padding-left: 1.25rem;
    border-left: 2px solid rgba(184, 154, 94, 0.40);
    color: rgba(255, 255, 255, 0.82);
    font-size: 1.2rem;
    font-style: italic;
    font-weight: 300;
    line-height: 1.55;
}

.lecture-gallery {
    display: grid;
    grid-template-columns: minmax(0, 1.16fr) minmax(0, 0.84fr);
    grid-template-rows: 220px 220px;
    gap: 1rem;
}

.lecture-frame {
    position: relative;
    margin: 0;
    min-height: 0;
    overflow: hidden;
    border: 1px solid rgba(184, 154, 94, 0.20);
    border-radius: 1.5rem;
    background: #1F1B15;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
    isolation: isolate;
}

.lecture-frame::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
        linear-gradient(180deg, rgba(10, 10, 10, 0.02) 20%, rgba(10, 10, 10, 0.70) 100%),
        radial-gradient(circle at 18% 18%, rgba(239, 227, 199, 0.18), transparent 34%);
}

.lecture-frame img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    filter: saturate(0.96) contrast(1.03);
    transform: scale(1.02);
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1), filter 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.lecture-frame:hover img {
    filter: saturate(1.06) contrast(1.05);
    transform: scale(1.055);
}

.lecture-frame figcaption {
    position: absolute;
    right: 1rem;
    bottom: 1rem;
    left: 1rem;
    z-index: 2;
    display: grid;
    gap: 0.25rem;
    padding: 0.85rem 0.95rem;
    border: 1px solid rgba(239, 227, 199, 0.18);
    border-radius: 1rem;
    background: rgba(10, 10, 10, 0.44);
    backdrop-filter: blur(16px) saturate(145%);
    -webkit-backdrop-filter: blur(16px) saturate(145%);
}

.lecture-frame figcaption span {
    color: rgba(239, 227, 199, 0.70);
    font-size: 0.56rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.lecture-frame figcaption strong {
    color: rgba(255, 255, 255, 0.90);
    font-family: 'Playfair Display', serif;
    font-size: 1.15rem;
    font-weight: 500;
    line-height: 1.15;
}

.lecture-frame-main {
    grid-row: span 2;
}

.lecture-frame-main img {
    object-position: 42% center;
}

.lecture-process {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1.25rem;
}

.lecture-step {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.15rem;
    border: 1px solid rgba(184, 154, 94, 0.16);
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.045);
}

.lecture-step span {
    color: rgba(184, 154, 94, 0.82);
    font-family: 'Playfair Display', serif;
    font-size: 1.85rem;
    line-height: 1;
}

.lecture-step p {
    margin: 0;
    color: rgba(255, 255, 255, 0.64);
    font-size: 0.86rem;
    line-height: 1.55;
}

.lecture-info-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.lecture-info-card {
    padding: 1.35rem;
    border: 1px solid rgba(184, 154, 94, 0.18);
    border-radius: 1.35rem;
    background: rgba(184, 154, 94, 0.07);
}

.lecture-info-card-wide {
    grid-column: span 2;
}

.lecture-info-card span {
    display: block;
    margin-bottom: 0.65rem;
    color: rgba(216, 194, 143, 0.72);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.lecture-info-card p {
    margin: 0;
    color: rgba(255, 255, 255, 0.62);
    font-size: 0.9rem;
    line-height: 1.7;
}

.lecture-final-note {
    position: relative;
    z-index: 1;
    margin-top: 1rem;
    padding: 1.25rem 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 1.35rem;
    background: rgba(255, 255, 255, 0.045);
}

.lecture-final-note p {
    margin: 0;
    color: rgba(255, 255, 255, 0.68);
    font-size: 1rem;
    line-height: 1.65;
}

.pillar-card {
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.pillar-card:hover {
    transform: translateY(-4px);
    background: rgba(184, 154, 94, 0.08);
    border-color: rgba(184, 154, 94, 0.24);
}

/* Animated underline for nav */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: linear-gradient(90deg, #EFE3C7, #B89A5E);
    transition: width 0.4s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Floating particles */
@keyframes float {

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

    50% {
        transform: translateY(-20px) translateX(10px);
    }
}

.float-anim {
    animation: float 8s ease-in-out infinite;
}

@keyframes pulse-glow {

    0%,
    100% {
        opacity: 0.4;
        transform: scale(1);
    }

    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
}

.pulse-anim {
    animation: pulse-glow 6s ease-in-out infinite;
}

/* Section divider */
.section-divider {
    width: 1px;
    height: 60px;
    background: linear-gradient(180deg, transparent, rgba(184, 154, 94, 0.38), transparent);
    margin: 0 auto;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #0A0A0A;
}

::-webkit-scrollbar-thumb {
    background: rgba(122, 101, 61, 0.28);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(122, 101, 61, 0.42);
}

/* Hero text animation */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-anim-1 {
    animation: fadeUp 1s ease 0.2s both;
}

.hero-anim-2 {
    animation: fadeUp 1s ease 0.5s both;
}

.hero-anim-3 {
    animation: fadeUp 1s ease 0.8s both;
}

.hero-anim-4 {
    animation: fadeUp 1s ease 1.1s both;
}

@media (max-width: 420px) {
    .hero-badge-text {
        font-size: 10px;
        letter-spacing: 0.08em;
    }
}

@media (max-width: 360px) {
    .hero-badge-text {
        font-size: 9px;
        letter-spacing: 0.04em;
    }
}

/* Noise overlay */
.noise::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    mix-blend-mode: overlay;
}

@keyframes heroAuraDrift {

    0%,
    100% {
        transform: translate3d(-2%, -1%, 0) rotate(0deg) scale(1);
    }

    50% {
        transform: translate3d(2%, 2%, 0) rotate(8deg) scale(1.06);
    }
}

@keyframes heroOrbFloat {

    0%,
    100% {
        transform: translate3d(0, 0, 0) scale(1);
    }

    50% {
        transform: translate3d(34px, -28px, 0) scale(1.08);
    }
}

@keyframes heroLinesFlow {
    from {
        transform: translate3d(-3%, -2%, 0);
    }

    to {
        transform: translate3d(3%, 2%, 0);
    }
}

.hero-motion-bg {
    position: fixed;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.hero-motion-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 18% 30%, rgba(184, 154, 94, 0.16), transparent 30%),
        radial-gradient(circle at 84% 22%, rgba(255, 255, 255, 0.68), transparent 26%),
        radial-gradient(circle at 58% 76%, rgba(122, 101, 61, 0.10), transparent 34%);
    filter: blur(18px);
    animation: heroAuraDrift 18s ease-in-out infinite;
}

.hero-motion-bg::after {
    content: '';
    position: absolute;
    inset: 8% -12%;
    background-image: repeating-linear-gradient(112deg,
            transparent 0 42px,
            rgba(122, 101, 61, 0.08) 43px 44px,
            transparent 45px 88px);
    opacity: 0.34;
    mask-image: radial-gradient(ellipse at 54% 48%, #000 0%, transparent 72%);
    -webkit-mask-image: radial-gradient(ellipse at 54% 48%, #000 0%, transparent 72%);
    animation: heroLinesFlow 22s ease-in-out infinite alternate;
}

.hero-orb {
    position: absolute;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(184, 154, 94, 0.18), rgba(184, 154, 94, 0));
    filter: blur(28px);
    opacity: 0.72;
    animation: heroOrbFloat 12s ease-in-out infinite;
}

.hero-orb-1 {
    width: 280px;
    height: 280px;
    left: 8%;
    top: 20%;
}

.hero-orb-2 {
    width: 360px;
    height: 360px;
    right: 6%;
    bottom: 12%;
    animation-delay: -4s;
    animation-duration: 16s;
}

.hero-orb-3 {
    width: 220px;
    height: 220px;
    left: 46%;
    bottom: 0;
    animation-delay: -8s;
    animation-duration: 14s;
}

@media (prefers-reduced-motion: reduce) {

    .hero-motion-bg::before,
    .hero-motion-bg::after,
    .hero-orb {
        animation: none;
    }
}

/* Gradient border card */
.gradient-border {
    position: relative;
}

.gradient-border::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 1px;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(184, 154, 94, 0.24), rgba(184, 154, 94, 0.04), rgba(184, 154, 94, 0.16));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.hero-visual-panel {
    background:
        radial-gradient(circle at 28% 22%, rgba(255, 255, 255, 0.92), transparent 28%),
        radial-gradient(circle at 68% 72%, rgba(184, 154, 94, 0.18), transparent 34%),
        linear-gradient(145deg, rgba(255, 255, 255, 0.62), rgba(244, 235, 216, 0.34));
    border: 1px solid rgba(122, 101, 61, 0.16);
    box-shadow: 0 30px 90px rgba(64, 53, 34, 0.12);
}

.hero-visual-panel::before {
    content: '';
    position: absolute;
    inset: 18px;
    border-radius: inherit;
    border: 1px solid rgba(122, 101, 61, 0.10);
    pointer-events: none;
}

.hero-visual-panel::after {
    content: '';
    position: absolute;
    width: 76%;
    height: 76%;
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(239, 227, 199, 0.78), rgba(184, 154, 94, 0.12));
    filter: blur(4px);
    pointer-events: none;
}

.hero-logo-card {
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(122, 101, 61, 0.14);
    box-shadow: 0 22px 70px rgba(64, 53, 34, 0.14);
}

.hero-stat-card {
    background: rgba(255, 255, 255, 0.76);
    border: 1px solid rgba(122, 101, 61, 0.13);
    box-shadow: 0 18px 46px rgba(64, 53, 34, 0.10);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

/* Tema Claro */
body.light-mode {
    background:
        radial-gradient(circle at top left, rgba(184, 154, 94, 0.12), transparent 34%),
        radial-gradient(circle at 85% 18%, rgba(255, 255, 255, 0.8), transparent 30%),
        radial-gradient(circle at 18% 72%, rgba(122, 101, 61, 0.06), transparent 28%),
        linear-gradient(180deg, #FBF8F0 0%, #F7F0DE 48%, #FBF8F0 100%);
    color: #1a1a1a;
}

body.light-mode::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.24;
    background-image:
        linear-gradient(rgba(122, 101, 61, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(122, 101, 61, 0.035) 1px, transparent 1px),
        url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.22'/%3E%3C/svg%3E");
    background-size: 72px 72px, 72px 72px, 180px 180px;
    mix-blend-mode: multiply;
}

body.light-mode #navbar .glass {
    background: rgba(251, 248, 240, 0.78);
    border-color: rgba(122, 101, 61, 0.12);
    box-shadow: 0 18px 50px rgba(66, 51, 15, 0.08);
}

body.light-mode .text-white {
    color: #1a1a1a !important;
}

body.light-mode .text-white\/90 {
    color: rgba(20, 20, 20, 0.95) !important;
}

body.light-mode .text-white\/80 {
    color: rgba(20, 20, 20, 0.88) !important;
}

body.light-mode .text-white\/70 {
    color: rgba(20, 20, 20, 0.80) !important;
}

body.light-mode .text-white\/65 {
    color: rgba(20, 20, 20, 0.76) !important;
}

body.light-mode .text-white\/60 {
    color: rgba(20, 20, 20, 0.72) !important;
}

body.light-mode .text-white\/55 {
    color: rgba(20, 20, 20, 0.70) !important;
}

body.light-mode .text-white\/50 {
    color: rgba(20, 20, 20, 0.66) !important;
}

body.light-mode .text-white\/40 {
    color: rgba(20, 20, 20, 0.56) !important;
}

body.light-mode .text-white\/30 {
    color: rgba(20, 20, 20, 0.46) !important;
}

body.light-mode .glass {
    background: rgba(255, 255, 255, 0.74);
    border: 1px solid rgba(122, 101, 61, 0.14);
    box-shadow: 0 20px 60px rgba(66, 51, 15, 0.07);
}

body.light-mode .glass-gold {
    background: rgba(184, 154, 94, 0.13);
    border: 1px solid rgba(122, 101, 61, 0.20);
    box-shadow: 0 18px 45px rgba(122, 101, 61, 0.06);
}

body.light-mode .glass-gold p,
body.light-mode .glass-gold h3 {
    color: rgba(20, 20, 20, 0.82) !important;
}

body.light-mode .text-gold-400\/70,
body.light-mode .text-gold-400\/50,
body.light-mode .text-gold-200\/70,
body.light-mode .text-gold-200\/60,
body.light-mode .text-gold-200\/50 {
    color: #7A653D !important;
}

body.light-mode .text-gold-300,
body.light-mode .text-gold-300\/70,
body.light-mode .text-gold-200,
body.light-mode .text-gold-100 {
    color: #5F4F32 !important;
}

body.light-mode .text-gold-gradient {
    background: linear-gradient(135deg, #5F4F32 0%, #967B4E 48%, #403522 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

body.light-mode .footer-go-logo-light {
    display: block;
}

body.light-mode .footer-go-logo-dark {
    display: none;
}

body.light-mode .bg-gold-400 {
    background-color: #7A653D !important;
}

body.light-mode .btn-outline-gold {
    background: rgba(255, 255, 255, 0.72);
    border-color: rgba(122, 101, 61, 0.30);
    color: #5F4F32;
}

body.light-mode .nav-link,
body.light-mode .mobile-link {
    color: rgba(20, 20, 20, 0.72) !important;
}

body.light-mode .nav-link:hover,
body.light-mode .mobile-link:hover {
    color: #5F4F32 !important;
}

body.light-mode .mobile-link.btn-gold,
body.light-mode .mobile-link.btn-gold:hover {
    color: #F8F1E3 !important;
}

body.light-mode .btn-outline-gold:hover {
    background: rgba(184, 154, 94, 0.12);
    border-color: rgba(122, 101, 61, 0.42);
}

body.light-mode .lecture-section {
    background: rgba(255, 255, 255, 0.64);
    border-color: rgba(122, 101, 61, 0.16);
    box-shadow: 0 24px 70px rgba(66, 51, 15, 0.08);
}

body.light-mode .lecture-quote,
body.light-mode .lecture-step p,
body.light-mode .lecture-info-card p,
body.light-mode .lecture-final-note p {
    color: rgba(20, 20, 20, 0.70);
}

body.light-mode .lecture-step,
body.light-mode .lecture-final-note {
    background: rgba(255, 255, 255, 0.58);
    border-color: rgba(122, 101, 61, 0.14);
}

body.light-mode .lecture-info-card {
    background: rgba(184, 154, 94, 0.10);
    border-color: rgba(122, 101, 61, 0.16);
}

body.light-mode .lecture-eyebrow,
body.light-mode .lecture-topline>span,
body.light-mode .lecture-info-card span {
    color: #7A653D;
}

body.light-mode .lecture-icon-wrap {
    color: #7A653D;
    background: rgba(184, 154, 94, 0.12);
    border-color: rgba(122, 101, 61, 0.18);
}

body.light-mode .program-card:hover,
body.light-mode .pillar-card:hover {
    box-shadow: 0 24px 70px rgba(66, 51, 15, 0.09), 0 0 34px rgba(184, 154, 94, 0.08);
}

body.light-mode .glow-white {
    background: radial-gradient(circle, rgba(0, 0, 0, 0.04) 0%, rgba(0, 0, 0, 0) 70%);
}

body.light-mode .glow-gold {
    background: radial-gradient(circle, rgba(184, 154, 94, 0.16) 0%, rgba(184, 154, 94, 0) 70%);
}

body.light-mode .border-white\/5 {
    border-color: rgba(0, 0, 0, 0.05) !important;
}

body.light-mode .gold-line {
    background: linear-gradient(90deg, transparent, rgba(122, 101, 61, 0.28), transparent);
}

body.light-mode .section-divider {
    background: linear-gradient(180deg, transparent, rgba(122, 101, 61, 0.32), transparent);
}

body.light-mode ::-webkit-scrollbar-track {
    background: #FBF8F0;
}

body.light-mode ::-webkit-scrollbar-thumb {
    background: rgba(122, 101, 61, 0.22);
}

body.light-mode .from-ink-900\/80 {
    --tw-gradient-from: rgba(251, 248, 240, 0.95) var(--tw-gradient-from-position);
    --tw-gradient-to: rgba(251, 248, 240, 0) var(--tw-gradient-to-position);
    --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to);
}

body.light-mode .history-image-overlay {
    background: linear-gradient(to top, rgba(251, 248, 240, 0.78) 0%, rgba(251, 248, 240, 0.18) 34%, transparent 62%);
}

body.light-mode .noise::before {
    opacity: 0.04;
    mix-blend-mode: multiply;
}

section:not(#hero) .glass,
section:not(#hero) .glass-gold,
section:not(#hero) .glass-light {
    backdrop-filter: blur(12px) saturate(120%);
    -webkit-backdrop-filter: blur(12px) saturate(120%);
}

@media (max-width: 768px) {
    .glow-white {
        display: none;
    }

    .glow-gold {
        filter: blur(36px);
        opacity: 0.32 !important;
    }

    #hero .glow-gold {
        opacity: 0.55 !important;
    }

    section:not(#hero) .glow-gold {
        filter: blur(28px);
        opacity: 0.18 !important;
    }

    .glass,
    .glass-gold,
    .glass-light {
        backdrop-filter: blur(10px) saturate(115%);
        -webkit-backdrop-filter: blur(10px) saturate(115%);
    }

    .hero-motion-bg::before {
        filter: blur(12px);
    }

    .hero-motion-bg::after {
        opacity: 0.18;
    }

    .hero-orb {
        filter: blur(18px);
        opacity: 0.45;
    }

    .reveal {
        transform: translateY(24px);
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .float-anim,
    .pulse-anim,
    .hero-motion-bg::before,
    .hero-motion-bg::after,
    .hero-orb {
        animation: none !important;
    }

    .reveal {
        transition: none;
        transform: none;
    }

    .glow-gold,
    .glow-white {
        transform: none !important;
    }
}

.wa-btn {
    position: fixed;
    right: 22px;
    bottom: 22px;
    min-width: 0;
    min-height: 0;
    padding: 10px 16px 10px 10px;
    background: rgba(251, 248, 240, 0.92);
    color: #403522;
    border-radius: 999px;
    border: 1px solid rgba(122, 101, 61, 0.18);
    cursor: pointer;
    box-shadow: 0 20px 54px rgba(64, 53, 34, 0.20), inset 0 1px 0 rgba(255, 255, 255, 0.72);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 11px;
    z-index: 9999;
    backdrop-filter: blur(18px) saturate(145%);
    -webkit-backdrop-filter: blur(18px) saturate(145%);
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.wa-btn::before {
    content: '';
    position: absolute;
    inset: 5px;
    border-radius: inherit;
    border: 1px solid rgba(255, 255, 255, 0.62);
    pointer-events: none;
}

.wa-btn::after {
    content: '';
    position: absolute;
    top: 11px;
    right: 11px;
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: #6E8F63;
    box-shadow: 0 0 0 4px rgba(110, 143, 99, 0.12), 0 0 18px rgba(110, 143, 99, 0.32);
}

.wa-btn:hover,
.wa-btn:focus-visible {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.96);
    border-color: rgba(122, 101, 61, 0.30);
    box-shadow: 0 24px 64px rgba(64, 53, 34, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.82);
}

.wa-btn:focus-visible {
    outline: 2px solid rgba(122, 101, 61, 0.48);
    outline-offset: 4px;
}

.wa-btn.is-open {
    background: linear-gradient(135deg, rgba(64, 53, 34, 0.96), rgba(122, 101, 61, 0.94));
    border-color: rgba(239, 227, 199, 0.24);
    color: #F8F1E3;
    box-shadow: 0 18px 52px rgba(64, 53, 34, 0.28);
}

@keyframes waPulse {
    0% {
        opacity: 0.8;
        transform: scale(0.86);
    }

    70%,
    100% {
        opacity: 0;
        transform: scale(1.18);
    }
}

.wa-icon-wrap {
    width: 42px;
    height: 42px;
    border-radius: 999px;
    background: linear-gradient(135deg, #403522 0%, #7A653D 100%);
    color: #F8F1E3;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 10px 24px rgba(64, 53, 34, 0.20), inset 0 1px 0 rgba(255, 255, 255, 0.14);
}

.wa-btn-copy {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 1px;
    padding-right: 10px;
    text-align: left;
    line-height: 1.1;
}

.wa-btn-copy span {
    color: rgba(95, 79, 50, 0.66);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.wa-btn-copy strong {
    color: inherit;
    font-family: 'Playfair Display', serif;
    font-size: 17px;
    font-weight: 600;
}

.wa-btn.is-open .wa-icon-wrap {
    background: rgba(255, 255, 255, 0.12);
    color: #F8F1E3;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.wa-btn.is-open .wa-btn-copy span {
    color: rgba(248, 241, 227, 0.66);
}

.wa-invite {
    position: fixed;
    right: 94px;
    bottom: 32px;
    z-index: 9997;
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.92), rgba(43, 38, 29, 0.88));
    color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(184, 154, 94, 0.22);
    border-radius: 999px;
    padding: 12px 18px 12px 14px;
    box-shadow: 0 14px 38px rgba(0, 0, 0, 0.28);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    pointer-events: none;
    display: none;
    align-items: center;
    gap: 9px;
    letter-spacing: 0.01em;
    transform: translateY(0);
    transition: opacity 0.25s ease, transform 0.25s ease;
    animation: waInviteFloat 4.2s ease-in-out infinite;
}

.wa-invite::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: #25D366;
    box-shadow: 0 0 0 4px rgba(37, 211, 102, 0.12), 0 0 18px rgba(37, 211, 102, 0.5);
    flex-shrink: 0;
    animation: waStatusPulse 1.8s ease-in-out infinite;
}

.wa-invite span {
    position: relative;
    z-index: 1;
}

.wa-invite.is-hidden {
    opacity: 0;
    transform: translateX(8px) translateY(0);
    animation: none;
}

.wa-invite::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    width: 12px;
    height: 12px;
    background: rgba(10, 10, 10, 0.88);
    border-top: 1px solid rgba(184, 154, 94, 0.22);
    border-right: 1px solid rgba(184, 154, 94, 0.22);
    transform: translateY(-50%) rotate(45deg);
}

@keyframes waInviteFloat {

    0%,
    100% {
        transform: translateY(0);
        box-shadow: 0 14px 38px rgba(0, 0, 0, 0.28), 0 0 0 rgba(37, 211, 102, 0);
    }

    50% {
        transform: translateY(-4px);
        box-shadow: 0 18px 42px rgba(0, 0, 0, 0.30), 0 0 22px rgba(37, 211, 102, 0.10);
    }
}

@keyframes waStatusPulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.9;
    }

    50% {
        transform: scale(1.22);
        opacity: 1;
    }
}

@media (prefers-reduced-motion: reduce) {

    .wa-invite,
    .wa-invite::before {
        animation: none !important;
    }
}

.wa-window {
    position: fixed;
    bottom: 98px;
    right: 22px;
    width: min(390px, calc(100vw - 32px));
    max-height: calc(100svh - 120px);
    background: rgba(251, 248, 240, 0.94);
    backdrop-filter: blur(22px) saturate(145%);
    -webkit-backdrop-filter: blur(22px) saturate(145%);
    border: 1px solid rgba(184, 154, 94, 0.20);
    border-radius: 28px;
    box-shadow: 0 24px 80px rgba(64, 53, 34, 0.20), 0 0 42px rgba(184, 154, 94, 0.10);
    overflow: hidden;
    z-index: 9998;
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
    font-family: 'Inter', sans-serif;
}

.wa-window.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px);
}

.wa-header {
    background: linear-gradient(135deg, rgba(122, 101, 61, 0.12), rgba(255, 255, 255, 0.72));
    color: #403522;
    padding: 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(122, 101, 61, 0.14);
}

.wa-header span {
    display: block;
    color: rgba(95, 79, 50, 0.72);
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.wa-header strong {
    display: block;
    font-family: 'Playfair Display', serif;
    font-size: 21px;
    font-weight: 500;
}

.wa-close {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.56);
    border: 1px solid rgba(122, 101, 61, 0.16);
    color: rgba(64, 53, 34, 0.78);
    font-size: 22px;
    cursor: pointer;
    line-height: 1;
}

.wa-body {
    max-height: calc(100svh - 214px);
    padding: 16px;
    overflow-y: auto;
    background: radial-gradient(circle at top right, rgba(184, 154, 94, 0.10), transparent 45%);
}

.wa-body p {
    margin: 0 0 12px 0;
    font-size: 14px;
    color: rgba(64, 53, 34, 0.62);
}

.wa-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 13px 14px;
    margin-bottom: 9px;
    background: rgba(255, 255, 255, 0.58);
    border: 1px solid rgba(122, 101, 61, 0.14);
    border-radius: 15px;
    text-align: left;
    cursor: pointer;
    font: inherit;
    font-size: 14px;
    color: rgba(64, 53, 34, 0.86);
    transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.wa-option::after {
    content: '>';
    color: rgba(122, 101, 61, 0.74);
    margin-left: 10px;
}

.wa-option:last-child {
    margin-bottom: 0;
}

.wa-option:hover,
.wa-option:focus-visible {
    background: rgba(255, 255, 255, 0.84);
    border-color: rgba(122, 101, 61, 0.28);
    transform: translateX(3px);
    outline: none;
}

@media (max-width: 1024px) {
    .lecture-hero-grid {
        grid-template-columns: 1fr;
    }

    .lecture-copy {
        max-width: 44rem;
    }
}

@media (max-width: 640px) {
    .lecture-section {
        padding: 1.35rem;
        border-radius: 1.5rem;
    }

    .lecture-topline {
        margin-bottom: 1.35rem;
    }

    .lecture-copy .btn-outline-gold {
        width: 100%;
        justify-content: center;
        padding-left: 1rem;
        padding-right: 1rem;
        text-align: center;
    }

    .lecture-gallery {
        grid-template-columns: 1fr;
        grid-template-rows: none;
        gap: 0.9rem;
    }

    .lecture-frame,
    .lecture-frame-main {
        min-height: 235px;
        grid-row: auto;
    }

    .lecture-process,
    .lecture-info-grid {
        grid-template-columns: 1fr;
    }

    .lecture-info-card-wide {
        grid-column: auto;
    }

    .lecture-step {
        align-items: start;
    }

    .lecture-frame figcaption {
        right: 14px;
        bottom: 14px;
        left: 14px;
        padding: 12px 14px;
        border-radius: 16px;
    }

    .lecture-frame figcaption strong {
        font-size: 18px;
    }

    .wa-btn {
        right: 16px;
        bottom: 16px;
        padding: 8px 12px 8px 8px;
        gap: 9px;
    }

    .wa-icon-wrap {
        width: 40px;
        height: 40px;
    }

    .wa-btn-copy strong {
        font-size: 16px;
    }

    .wa-invite {
        display: none;
    }

    .wa-window {
        right: 16px;
        bottom: 86px;
    }
}