@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=Inter:wght@300;400;500;600;700&display=swap');

/* =====================================================
   Conceito ENAM — Design System
   Landing Page: Minicurso O Controle de Constitucionalidade
   Paleta: noir profundo + amarelo signature #ffcd1c
   ===================================================== */

:root {
    --radius: 0.5rem;

    --background: oklch(0.12 0.005 60);
    --foreground: oklch(0.96 0.005 80);
    --noir: oklch(0.09 0.004 60);
    --noir-soft: oklch(0.16 0.006 60);
    --cream: oklch(0.94 0.02 85);

    --gold: oklch(0.86 0.17 92);
    --gold-soft: oklch(0.86 0.17 92 / 0.12);
    --gold-deep: oklch(0.72 0.16 80);

    --card: oklch(0.14 0.005 60);
    --muted-fg: oklch(0.62 0.01 70);
    --glass: oklch(0.96 0.005 80 / 0.04);
    --glass-border: oklch(0.96 0.005 80 / 0.1);
    --hairline: oklch(0.96 0.005 80 / 0.14);
    --border: oklch(0.96 0.005 80 / 0.08);
    --destructive: oklch(0.6 0.22 25);

    --gradient-gold: linear-gradient(135deg, oklch(0.92 0.16 95) 0%, oklch(0.78 0.17 82) 100%);
    --gradient-noir: linear-gradient(180deg, oklch(0.09 0.004 60) 0%, oklch(0.14 0.006 60) 100%);
    --gradient-radial-gold: radial-gradient(ellipse at center, oklch(0.86 0.17 92 / 0.18) 0%, transparent 65%);
    --gradient-fade-bottom: linear-gradient(180deg, transparent 0%, oklch(0.12 0.005 60) 100%);

    --shadow-gold: 0 0 0 1px oklch(0.86 0.17 92 / 0.2), 0 20px 60px -20px oklch(0.86 0.17 92 / 0.35);
    --shadow-soft: 0 30px 80px -30px oklch(0 0 0 / 0.6);
    --shadow-elevated: 0 40px 120px -30px oklch(0 0 0 / 0.7);

    --ease-premium: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
}

/* ===== RESET ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    border-color: var(--border);
}
html {
    scroll-behavior: smooth;
}
body {
    background-color: var(--background);
    color: var(--foreground);
    font-family: 'Inter', system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}
::selection {
    background-color: var(--gold);
    color: var(--noir);
}
img {
    display: block;
    max-width: 100%;
}
a {
    text-decoration: none;
    color: inherit;
}

::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--noir);
}
::-webkit-scrollbar-thumb {
    background: var(--gold-deep);
    border-radius: 10px;
    border: 2px solid var(--noir);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--gold);
}

/* ===== TYPOGRAPHY ===== */
.font-display {
    font-family: 'Cormorant Garamond', 'Times New Roman', serif;
    font-feature-settings: 'ss01', 'lnum';
    letter-spacing: -0.015em;
}

.text-eyebrow {
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: var(--gold);
    font-family: 'Inter', system-ui, sans-serif;
}

.text-gold {
    color: var(--gold);
}
.text-gold-italic {
    color: var(--gold);
    font-style: italic;
}
.text-muted {
    color: var(--muted-fg);
}

/* ===== ANIMATIONS ===== */
@keyframes goldPulse {
    0%,
    100% {
        box-shadow:
            0 0 0 1px var(--gold-soft),
            0 30px 80px -30px oklch(0.86 0.17 92 / 0.25);
    }
    50% {
        box-shadow:
            0 0 0 1px var(--gold-soft),
            0 40px 120px -20px oklch(0.86 0.17 92 / 0.45);
    }
}
@keyframes livePulse {
    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(0.82);
    }
}
@keyframes floatY {
    0%,
    100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}
@keyframes rotateSlow {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}
@keyframes shimmer {
    0% {
        background-position: -200% center;
    }
    100% {
        background-position: 200% center;
    }
}
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(32px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.92);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}
@keyframes lineGrow {
    from {
        transform: scaleX(0);
    }
    to {
        transform: scaleX(1);
    }
}
@keyframes barFill {
    from {
        width: 0;
    }
    to {
        width: var(--fill, 100%);
    }
}

.animate-gold-pulse {
    animation: goldPulse 5s ease-in-out infinite;
}
.animate-live-pulse {
    animation: livePulse 1.6s ease-in-out infinite;
}
.animate-float {
    animation: floatY 4s ease-in-out infinite;
}

/* ===== REVEAL ===== */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition:
        opacity 0.9s var(--ease-premium),
        transform 0.9s var(--ease-premium);
    transition-delay: var(--delay, 0ms);
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}
.reveal-scale {
    opacity: 0;
    transform: scale(0.94);
    transition:
        opacity 0.9s var(--ease-premium),
        transform 0.9s var(--ease-premium);
    transition-delay: var(--delay, 0ms);
}
.reveal-scale.is-visible {
    opacity: 1;
    transform: scale(1);
}

/* ===== LAYOUT ===== */
.page-wrapper {
    position: relative;
    min-height: 100vh;
    overflow-x: hidden;
}
.container {
    max-width: 72rem;
    margin: 0 auto;
    padding: 0 1.5rem;
}
.container--md {
    max-width: 56rem;
    margin: 0 auto;
    padding: 0 1.5rem;
}
.container--sm {
    max-width: 42rem;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ===== HAIRLINE ===== */
.hairline {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

/* ===== BADGE ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    border: 1px solid oklch(0.86 0.17 92 / 0.3);
    background: oklch(0.86 0.17 92 / 0.06);
    border-radius: 9999px;
    padding: 0.5rem 1.125rem;
    backdrop-filter: blur(4px);
}
.badge__dot {
    display: block;
    height: 0.5rem;
    width: 0.5rem;
    border-radius: 9999px;
    background: var(--gold);
    flex-shrink: 0;
}
.badge__dot--red {
    background: var(--destructive);
}
.badge__text {
    color: var(--gold);
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.28em;
    text-transform: uppercase;
}

/* ===== BTN GOLD ===== */
.btn-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto; /* nunca ocupa 100% por padrão */
    max-width: 100%; /* responsivo sem estourar o container */
    gap: 0.5rem;
    background: var(--gradient-gold);
    color: var(--noir);
    border: none;
    border-radius: calc(var(--radius) + 6px);
    padding: 0.75rem 1.5rem; /* padding mais contido */
    font-size: 0.8125rem;
    font-weight: 700;
    font-family: 'Inter', system-ui, sans-serif;
    letter-spacing: 0.04em;
    cursor: pointer;
    text-transform: uppercase;
    text-decoration: none;
    white-space: nowrap; /* evita quebra de linha estranha */
    position: relative;
    overflow: hidden;
    transition: all 0.3s var(--ease-premium);
    box-shadow: 0 4px 24px oklch(0.86 0.17 92 / 0.3);
}
.btn-gold::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, oklch(0.98 0.1 100 / 0.3), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}
.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 40px oklch(0.86 0.17 92 / 0.45);
}
.btn-gold:hover::before {
    opacity: 1;
}
.btn-gold:active {
    transform: translateY(0);
}
.btn-gold--full {
    width: 100%;
    white-space: normal;
}
.btn-gold--lg {
    padding: 0.875rem 1.875rem;
    font-size: 0.875rem;
}
.btn-icon {
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
}

/* shimmer on CTA */
.btn-gold--shimmer {
    background-size: 200% auto;
    background-image: linear-gradient(
        90deg,
        oklch(0.78 0.17 82) 0%,
        oklch(0.95 0.16 100) 40%,
        oklch(0.78 0.17 82) 100%
    );
    animation: shimmer 2.5s linear infinite;
}

/* ===== SECTION TITLES ===== */
.section__title {
    font-family: 'Cormorant Garamond', 'Times New Roman', serif;
    font-feature-settings: 'ss01', 'lnum';
    letter-spacing: -0.015em;
    color: var(--foreground);
    font-weight: 300;
    line-height: 1.05;
    text-wrap: balance;
    font-size: clamp(2rem, 4.5vw, 3.5rem);
}
.section__title--lg {
    font-size: clamp(2.2rem, 5vw, 4rem);
}
.section__desc {
    color: var(--muted-fg);
    font-size: 0.9375rem;
    line-height: 1.75;
    max-width: 36rem;
}

/* ===== HERO ===== */
.hero {
    position: relative;
    isolation: isolate;
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 6rem 1.5rem 5rem;
    text-align: center;
}

.hero__bg {
    position: absolute;
    inset: 0;
    z-index: -3;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 30%;
    opacity: 0.38;
    transition: opacity 1s;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    z-index: -2;
    background: linear-gradient(
        to bottom,
        oklch(0.09 0.004 60 / 0.55) 0%,
        oklch(0.09 0.004 60 / 0.8) 50%,
        oklch(0.12 0.005 60) 100%
    );
}

.hero__noise {
    position: absolute;
    inset: 0;
    z-index: -1;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-size: 200px;
}

.hero__glow {
    position: absolute;
    inset-inline: 0;
    top: 0;
    z-index: -1;
    margin: 0 auto;
    height: 70vh;
    width: 80vw;
    background: radial-gradient(ellipse at 50% 30%, oklch(0.86 0.17 92 / 0.16) 0%, transparent 65%);
}

.hero__content {
    position: relative;
    width: 100%;
    max-width: 62rem;
    margin: 0 auto;
}

.hero__title {
    font-family: 'Cormorant Garamond', 'Times New Roman', serif;
    font-feature-settings: 'ss01', 'lnum';
    letter-spacing: -0.02em;
    color: var(--foreground);
    margin-top: 1.5rem;
    font-size: clamp(3rem, 8vw, 6.5rem);
    line-height: 0.95;
    font-weight: 300;
    text-wrap: balance;
}

.hero__title-em {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-style: italic;
    display: block;
}

.hero__subtitle {
    margin-top: 1.75rem;
    font-size: clamp(1rem, 2.2vw, 1.25rem);
    line-height: 1.65;
    color: oklch(0.96 0.005 80 / 0.75);
    max-width: 40rem;
    margin-left: auto;
    margin-right: auto;
}

.hero__stats {
    display: flex;
    flex-wrap: wrap;
    gap: 0 2.5rem;
    justify-content: center;
    margin-top: 2.5rem;
}

.hero__stat {
    text-align: center;
}
.hero__stat-value {
    font-family: 'Cormorant Garamond', 'Times New Roman', serif;
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--gold);
    line-height: 1;
}
.hero__stat-label {
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--muted-fg);
    margin-top: 0.25rem;
}

.hero__stat-divider {
    width: 1px;
    height: 3rem;
    background: var(--glass-border);
    align-self: center;
    display: none;
}
@media (min-width: 480px) {
    .hero__stat-divider {
        display: block;
    }
}

.hero__cta {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}
.hero__cta-note {
    font-size: 0.65rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--muted-fg);
}

/* scroll indicator */
.hero__scroll {
    position: absolute;
    bottom: 2rem;
    /* left: 50%; */
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.45;
    animation: floatY 2s ease-in-out infinite;
}
.hero__scroll-line {
    width: 1px;
    height: 2.5rem;
    background: linear-gradient(180deg, var(--gold), transparent);
}
.hero__scroll-label {
    font-size: 0.55rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--gold);
}

/* ===== PROBLEM SECTION ===== */
.problem-section {
    padding: 6rem 1.5rem;
    position: relative;
}
.problem-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, var(--background) 0%, oklch(0.1 0.005 60) 50%, var(--background) 100%);
    z-index: -1;
}

.problem-grid {
    display: grid;
    gap: 3rem;
    align-items: center;
    margin-top: 3rem;
}
@media (min-width: 768px) {
    .problem-grid {
        grid-template-columns: 1fr 1fr;
        gap: 5rem;
    }
}

.problem-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}
.problem-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.125rem 1.25rem;
    border: 1px solid oklch(0.6 0.22 25 / 0.2);
    background: oklch(0.6 0.22 25 / 0.06);
    border-radius: calc(var(--radius) + 6px);
    transition: all 0.3s var(--ease-premium);
}
.problem-item:hover {
    border-color: oklch(0.6 0.22 25 / 0.4);
    background: oklch(0.6 0.22 25 / 0.1);
}
.problem-item__icon {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
    color: oklch(0.7 0.2 25);
    margin-top: 0.1rem;
}
.problem-item__text {
    font-size: 0.875rem;
    line-height: 1.5;
    color: oklch(0.85 0.005 80);
}

.problem-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.problem-visual__card {
    position: relative;
    border: 1px solid oklch(0.86 0.17 92 / 0.2);
    background: oklch(0.14 0.006 60 / 0.8);
    border-radius: calc(var(--radius) + 12px);
    padding: 2rem;
    width: 100%;
    max-width: 340px;
    backdrop-filter: blur(8px);
    animation: floatY 5s ease-in-out infinite;
}
.problem-visual__glow {
    pointer-events: none;
    position: absolute;
    inset: -2rem;
    background: radial-gradient(ellipse, oklch(0.86 0.17 92 / 0.12) 0%, transparent 65%);
}
.problem-visual__label {
    font-size: 0.62rem;
    font-weight: 500;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 1.5rem;
}
.problem-visual__stat {
    margin-bottom: 1.5rem;
}
.problem-visual__stat:last-child {
    margin-bottom: 0;
}
.problem-visual__stat-label {
    font-size: 0.7rem;
    color: var(--muted-fg);
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}
.problem-visual__bar {
    height: 6px;
    border-radius: 9999px;
    background: var(--glass);
    overflow: hidden;
    border: 1px solid var(--glass-border);
}
.problem-visual__bar-fill {
    height: 100%;
    border-radius: 9999px;
    background: var(--gradient-gold);
    width: var(--fill, 0%);
    transition: width 1.5s var(--ease-out-expo);
}
.problem-visual__bar-fill--red {
    background: linear-gradient(90deg, oklch(0.6 0.22 25), oklch(0.7 0.22 25));
}
.problem-visual__stat-value {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.5rem;
    font-weight: 300;
    margin-top: 0.375rem;
    color: var(--foreground);
}
.problem-visual__stat-value span {
    color: var(--gold);
}

/* ===== MODULES SECTION ===== */
.modules-section {
    padding: 6rem 1.5rem;
    position: relative;
}
.modules-section__glow {
    pointer-events: none;
    position: absolute;
    top: 0;
    left: 50%;
    width: 80vw;
    height: 50vh;
    transform: translateX(-50%);
    background: var(--gradient-radial-gold);
    opacity: 0.3;
    z-index: 0;
}
.modules-header {
    text-align: center;
    position: relative;
    z-index: 1;
}
.modules-grid {
    display: grid;
    gap: 1.5rem;
    margin-top: 4rem;
    position: relative;
    z-index: 1;
}
@media (min-width: 768px) {
    .modules-grid {
        grid-template-columns: 1fr 1fr;
    }
}
@media (min-width: 1024px) {
    .modules-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

.module-card {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    background: oklch(0.96 0.005 80 / 0.03);
    border-radius: calc(var(--radius) + 10px);
    padding: 0;
    backdrop-filter: blur(8px);
    transition: all 0.4s var(--ease-premium);
    cursor: default;
}
.module-card:hover {
    border-color: oklch(0.86 0.17 92 / 0.35);
    background: oklch(0.96 0.005 80 / 0.06);
    transform: translateY(-4px);
    box-shadow: var(--shadow-gold);
}

/* Video thumbnail area */
.module-card__thumb {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: oklch(0.1 0.004 60);
    overflow: hidden;
}
.module-card__thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
    transition:
        opacity 0.4s,
        transform 0.6s var(--ease-premium);
}
.module-card:hover .module-card__thumb-img {
    opacity: 0.75;
    transform: scale(1.04);
}
.module-card__thumb-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 40%, oklch(0.1 0.004 60) 100%);
}
.module-card__thumb-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    background: oklch(0.12 0.005 60);
}
.module-card__thumb-placeholder-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 9999px;
    border: 1px solid oklch(0.86 0.17 92 / 0.4);
    background: oklch(0.86 0.17 92 / 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold);
    transition: all 0.3s;
}
.module-card:hover .module-card__thumb-placeholder-icon {
    background: oklch(0.86 0.17 92 / 0.15);
    border-color: oklch(0.86 0.17 92 / 0.6);
}
.module-card__thumb-placeholder-icon svg {
    width: 1.25rem;
    height: 1.25rem;
}
.module-card__thumb-placeholder-label {
    font-size: 0.6rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--muted-fg);
}

/* number badge on thumb */
.module-card__number {
    position: absolute;
    top: 1rem;
    left: 1rem;
    font-family: 'Cormorant Garamond', serif;
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--gold);
    letter-spacing: 0.15em;
    background: oklch(0.09 0.004 60 / 0.8);
    border: 1px solid oklch(0.86 0.17 92 / 0.3);
    border-radius: 9999px;
    padding: 0.25rem 0.75rem;
    backdrop-filter: blur(4px);
}

/* card body */
.module-card__body {
    padding: 1.5rem;
}
.module-card__label {
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--gold);
}
.module-card__title {
    font-family: 'Cormorant Garamond', 'Times New Roman', serif;
    font-size: 1.5rem;
    font-weight: 300;
    letter-spacing: -0.01em;
    color: var(--foreground);
    margin-top: 0.375rem;
    line-height: 1.2;
}
.module-card__desc {
    font-size: 0.8125rem;
    line-height: 1.65;
    color: var(--muted-fg);
    margin-top: 0.75rem;
}
.module-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-top: 1.25rem;
}
.module-card__tag {
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: oklch(0.86 0.17 92 / 0.8);
    border: 1px solid oklch(0.86 0.17 92 / 0.2);
    background: oklch(0.86 0.17 92 / 0.05);
    border-radius: 9999px;
    padding: 0.25rem 0.625rem;
}

/* ===== TEACHER SECTION ===== */
.teacher-section {
    padding: 6rem 1.5rem;
    position: relative;
}
.teacher-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: oklch(0.1 0.005 60 / 0.6);
    z-index: -1;
}
.teacher-section__glow {
    pointer-events: none;
    position: absolute;
    right: 0;
    top: 50%;
    width: 50vw;
    height: 60vh;
    transform: translateY(-50%);
    background: radial-gradient(ellipse at right, oklch(0.86 0.17 92 / 0.1) 0%, transparent 65%);
}

.teacher-grid {
    display: grid;
    gap: 4rem;
    align-items: center;
    margin-top: 3rem;
}
@media (min-width: 768px) {
    .teacher-grid {
        grid-template-columns: 380px 1fr;
        gap: 5rem;
    }
}

.teacher-photo-wrap {
    position: relative;
    display: flex;
    justify-content: center;
}
.teacher-photo-frame {
    position: relative;
    width: 280px;
    height: 340px;
    border-radius: calc(var(--radius) + 16px);
    overflow: hidden;
    border: 1px solid oklch(0.86 0.17 92 / 0.25);
    flex-shrink: 0;
}
@media (min-width: 768px) {
    .teacher-photo-frame {
        width: 320px;
        height: 400px;
    }
}
.teacher-photo-frame__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}
.teacher-photo-frame__placeholder {
    width: 100%;
    height: 100%;
    background: oklch(0.14 0.006 60);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--muted-fg);
}
.teacher-photo-frame__placeholder svg {
    width: 4rem;
    height: 4rem;
    opacity: 0.4;
}
.teacher-photo-frame__placeholder-label {
    font-size: 0.65rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    opacity: 0.5;
}
.teacher-photo-frame__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 55%, oklch(0.09 0.004 60 / 0.85) 100%);
}
.teacher-photo-frame__decor {
    position: absolute;
    bottom: 1.25rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    width: 90%;
}
.teacher-photo-frame__decor-name {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.375rem;
    font-weight: 300;
    color: var(--foreground);
    line-height: 1.2;
}
.teacher-photo-frame__decor-title {
    font-size: 0.6rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--gold);
    margin-top: 0.25rem;
}

/* orbit decor */
.teacher-photo-orbit {
    position: absolute;
    top: -1.5rem;
    right: -1.5rem;
    width: 6rem;
    height: 6rem;
    border: 1px dashed oklch(0.86 0.17 92 / 0.25);
    border-radius: 9999px;
    animation: rotateSlow 12s linear infinite;
}
.teacher-photo-orbit::before {
    content: '';
    position: absolute;
    top: -0.25rem;
    left: 50%;
    transform: translateX(-50%);
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 9999px;
    background: var(--gold);
}

.teacher-name {
    font-family: 'Cormorant Garamond', 'Times New Roman', serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 300;
    letter-spacing: -0.015em;
    line-height: 1.1;
    margin-top: 0.75rem;
}
.teacher-bio {
    font-size: 0.9375rem;
    line-height: 1.75;
    color: oklch(0.96 0.005 80 / 0.72);
    margin-top: 1.25rem;
    max-width: 30rem;
}
.teacher-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.75rem;
}
.teacher-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gold);
    border: 1px solid oklch(0.86 0.17 92 / 0.25);
    background: oklch(0.86 0.17 92 / 0.06);
    border-radius: 9999px;
    padding: 0.375rem 0.875rem;
}
.teacher-badge::before {
    content: '';
    display: block;
    width: 0.3125rem;
    height: 0.3125rem;
    border-radius: 9999px;
    background: var(--gold);
    flex-shrink: 0;
}

/* ===== BONUS SECTION ===== */
.bonus-section {
    padding: 6rem 1.5rem;
    position: relative;
}
.bonus-section__glow {
    pointer-events: none;
    position: absolute;
    top: 50%;
    left: 50%;
    width: 60vw;
    height: 60vh;
    transform: translate(-50%, -50%);
    background: radial-gradient(ellipse, oklch(0.86 0.17 92 / 0.14) 0%, transparent 65%);
}

.bonus-card {
    position: relative;
    overflow: hidden;
    border: 1px solid oklch(0.86 0.17 92 / 0.3);
    background: oklch(0.14 0.006 60 / 0.7);
    border-radius: calc(var(--radius) + 16px);
    padding: 3rem 2rem;
    backdrop-filter: blur(8px);
    animation: goldPulse 6s ease-in-out infinite;
}
@media (min-width: 640px) {
    .bonus-card {
        padding: 4rem 3rem;
    }
}
.bonus-card__glow {
    pointer-events: none;
    position: absolute;
    inset: 0;
    background: var(--gradient-radial-gold);
    opacity: 0.5;
}
.bonus-card__inner {
    position: relative;
}
.bonus-card__header {
    text-align: center;
}
.bonus-card__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 4rem;
    border-radius: 9999px;
    border: 1px solid oklch(0.86 0.17 92 / 0.4);
    background: oklch(0.86 0.17 92 / 0.1);
    color: var(--gold);
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
}
.bonus-card__icon svg {
    width: 2rem;
    height: 2rem;
}

.bonus-items {
    display: grid;
    gap: 1rem;
    margin-top: 2.5rem;
}
@media (min-width: 640px) {
    .bonus-items {
        grid-template-columns: 1fr 1fr;
    }
}

.bonus-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.125rem 1.25rem;
    border: 1px solid oklch(0.86 0.17 92 / 0.15);
    background: oklch(0.86 0.17 92 / 0.04);
    border-radius: calc(var(--radius) + 6px);
    transition: all 0.3s var(--ease-premium);
}
.bonus-item:hover {
    border-color: oklch(0.86 0.17 92 / 0.3);
    background: oklch(0.86 0.17 92 / 0.08);
}
.bonus-item__icon {
    flex-shrink: 0;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 9999px;
    border: 1px solid oklch(0.86 0.17 92 / 0.3);
    background: oklch(0.86 0.17 92 / 0.07);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold);
}
.bonus-item__icon svg {
    width: 1rem;
    height: 1rem;
}
.bonus-item__text {
    font-size: 0.875rem;
    line-height: 1.5;
    color: oklch(0.9 0.005 80);
}

/* ===== FORM SECTION ===== */
.form-section {
    position: relative;
    padding: 6rem 1.5rem 8rem;
    scroll-margin-top: 4rem;
}
.form-section__glow {
    pointer-events: none;
    position: absolute;
    top: 0;
    left: 50%;
    width: 80vw;
    height: 60vh;
    transform: translateX(-50%);
    background: var(--gradient-radial-gold);
    opacity: 0.4;
    z-index: 0;
}
.form-section__inner {
    position: relative;
    z-index: 1;
    max-width: 42rem;
    margin: 0 auto;
}
.form-section__header {
    text-align: center;
    margin-bottom: 3rem;
}

.form-wrap {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    background: oklch(0.96 0.005 80 / 0.03);
    box-shadow: var(--shadow-soft);
    border-radius: calc(var(--radius) + 14px);
    padding: 2rem 1.75rem;
    backdrop-filter: blur(12px);
}
@media (min-width: 640px) {
    .form-wrap {
        padding: 3rem;
    }
}

.form-wrap__glow {
    pointer-events: none;
    position: absolute;
    top: -6rem;
    left: 50%;
    height: 14rem;
    width: 80%;
    transform: translateX(-50%);
    background: var(--gradient-radial-gold);
    opacity: 0.35;
}

.form-fields {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.field {
    display: flex;
    flex-direction: column;
}
.field__label {
    color: var(--muted-fg);
    margin-bottom: 0.5rem;
    font-size: 0.62rem;
    font-weight: 500;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}
.field__input {
    display: block;
    width: 100%;
    background: oklch(0.16 0.006 60 / 0.7);
    color: var(--foreground);
    border: 1px solid var(--glass-border);
    border-radius: calc(var(--radius) + 4px);
    padding: 0.9375rem 1.125rem;
    font-size: 0.9375rem;
    font-family: 'Inter', system-ui, sans-serif;
    outline: none;
    transition: all 0.3s var(--ease-premium);
    -webkit-appearance: none;
}
.field__input::placeholder {
    color: oklch(0.62 0.01 70 / 0.45);
}
.field__input:focus {
    border-color: oklch(0.86 0.17 92 / 0.6);
    box-shadow: 0 0 0 4px oklch(0.86 0.17 92 / 0.12);
}
.field__input--error {
    border-color: oklch(0.6 0.22 25 / 0.6);
}
.field__error {
    color: var(--destructive);
    margin-top: 0.5rem;
    font-size: 0.75rem;
}

/* checkbox */
.checkbox-row {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-top: 0.5rem;
}
.checkbox-row input[type='checkbox'] {
    width: 1.125rem;
    height: 1.125rem;
    accent-color: var(--gold);
    cursor: pointer;
    margin-top: 0.15rem;
    flex-shrink: 0;
}
.checkbox-row__text {
    font-size: 0.75rem;
    color: oklch(0.7 0.01 70);
    line-height: 1.5;
}
.checkbox-row__text a {
    color: var(--gold);
    font-weight: 600;
}
.checkbox-row__text a:hover {
    text-decoration: underline;
}

.form-note {
    color: var(--muted-fg);
    text-align: center;
    font-size: 0.62rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

/* success box */
.success-box {
    position: relative;
    overflow: hidden;
    border: 1px solid oklch(0.86 0.17 92 / 0.35);
    background: oklch(0.96 0.005 80 / 0.05);
    box-shadow: var(--shadow-gold);
    border-radius: calc(var(--radius) + 14px);
    padding: 3rem 2rem;
    text-align: center;
    backdrop-filter: blur(12px);
}
@media (min-width: 640px) {
    .success-box {
        padding: 4rem 3rem;
    }
}
.success-box__glow {
    pointer-events: none;
    position: absolute;
    inset: 0;
    background: var(--gradient-radial-gold);
    opacity: 0.5;
}
.success-box__icon {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3.75rem;
    height: 3.75rem;
    border-radius: 9999px;
    border: 1px solid oklch(0.86 0.17 92 / 0.4);
    background: oklch(0.86 0.17 92 / 0.1);
    color: var(--gold);
}
.success-box__icon svg {
    width: 1.75rem;
    height: 1.75rem;
}
.success-box__title {
    position: relative;
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 300;
    letter-spacing: -0.015em;
    margin-top: 1rem;
}
.success-box__desc {
    position: relative;
    color: var(--muted-fg);
    margin: 0.875rem auto 0;
    max-width: 28rem;
    font-size: 0.875rem;
    line-height: 1.7;
}

/* ===== FOOTER ===== */
.footer {
    border-top: 1px solid var(--glass-border);
}
.footer__inner {
    max-width: 72rem;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 2.5rem 1.5rem;
}
@media (min-width: 640px) {
    .footer__inner {
        flex-direction: row;
    }
}
.footer__brand {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--foreground);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.footer__brand::before {
    content: '';
    display: block;
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 9999px;
    background: var(--gradient-gold);
}
.footer__copy {
    color: oklch(0.62 0.01 70 / 0.6);
    font-size: 0.6rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    text-align: center;
}
@media (min-width: 640px) {
    .footer__copy {
        text-align: right;
    }
}
.footer__tagline {
    font-size: 0.6875rem;
    color: var(--muted-fg);
    text-align: center;
}
@media (min-width: 640px) {
    .footer__tagline {
        text-align: right;
    }
}

/* ===== LINK ===== */
.link-gold {
    color: var(--gold);
    font-weight: 600;
    transition: opacity 0.2s;
}
.link-gold:hover {
    opacity: 0.75;
}

/* ===== STICKY CTA BAR ===== */
.sticky-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1rem 1.5rem;
    background: oklch(0.1 0.004 60 / 0.92);
    border-top: 1px solid oklch(0.86 0.17 92 / 0.2);
    backdrop-filter: blur(16px);
    transform: translateY(100%);
    transition: transform 0.5s var(--ease-premium);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}
.sticky-bar.is-visible {
    transform: translateY(0);
}
.sticky-bar__text {
    font-size: 0.8125rem;
    color: var(--muted-fg);
    display: none;
}
@media (min-width: 640px) {
    .sticky-bar__text {
        display: block;
    }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 479px) {
    .hero__stats {
        gap: 1.5rem;
    }
    .hero__stat-divider {
        display: none;
    }
}