/* ========================================
   SpellStar Website – Millennial Pink
   ======================================== */

:root {
    /* Millennial pink palette */
    --pink-50:  #fef5f7;
    --pink-100: #fde8ed;
    --pink-200: #fbd0db;
    --pink-300: #f8a9be;
    --pink-400: #f28da8;
    --pink-500: #e8728f;
    --pink-600: #d4547a;
    --pink-700: #b93d63;
    --pink-800: #9a3353;
    --pink-900: #7a2c46;

    /* Warm neutrals */
    --warm-50:  #fdfbfa;
    --warm-100: #f9f5f3;
    --warm-200: #f0ebe7;
    --warm-300: #e2d9d3;
    --warm-400: #c4b5ab;
    --warm-500: #a6948a;
    --warm-600: #887469;
    --warm-700: #6b5a51;
    --warm-800: #4a3d37;
    --warm-900: #2d2421;

    /* Accents */
    --gold:     #d4a853;
    --gold-soft: #f0e0b8;
    --sage:     #8fae8b;
    --sage-soft: #dce8db;

    /* Functional */
    --bg:       var(--warm-50);
    --text:     var(--warm-900);
    --text-secondary: var(--warm-600);
    --border:   var(--warm-200);

    /* Typography */
    --font-body:    'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'DM Serif Display', Georgia, serif;

    /* Spacing */
    --section-pad: clamp(60px, 10vw, 120px);
    --inner-max: 1120px;

    /* Transitions */
    --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ---- Reset & base ---- */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.65;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a {
    color: var(--pink-600);
    text-decoration: none;
    transition: color 0.2s var(--ease);
}
a:hover { color: var(--pink-800); }

h1, h2, h3 { font-family: var(--font-display); font-weight: 400; line-height: 1.2; }

h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.3rem; }

em { font-style: italic; }

/* ---- Buttons ---- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 50px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.25s var(--ease);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--pink-600);
    color: #fff;
    box-shadow: 0 2px 12px rgba(212, 84, 122, 0.25);
}
.btn-primary:hover {
    background: var(--pink-700);
    color: #fff;
    box-shadow: 0 4px 20px rgba(212, 84, 122, 0.35);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--pink-600);
    border: 2px solid var(--pink-200);
}
.btn-ghost:hover {
    border-color: var(--pink-400);
    color: var(--pink-700);
    background: var(--pink-50);
}

.btn-large {
    padding: 18px 44px;
    font-size: 1.15rem;
}

/* ---- Nav ---- */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    transition: all 0.3s var(--ease);
}

.nav-scrolled {
    background: rgba(253, 251, 250, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 var(--border);
    padding: 10px 0;
}

.nav-inner {
    max-width: var(--inner-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--pink-700);
}
.nav-logo:hover { color: var(--pink-800); }

.nav-links {
    display: flex;
    gap: 28px;
}

.nav-links a {
    color: var(--warm-600);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.01em;
}
.nav-links a:hover {
    color: var(--pink-600);
}

@media (max-width: 680px) {
    .nav-links { display: none; }
}

/* ---- Hero ---- */

.hero {
    padding: calc(var(--section-pad) + 60px) 24px var(--section-pad);
    max-width: var(--inner-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

@media (max-width: 860px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: calc(var(--section-pad) + 40px);
    }
    .hero-actions { justify-content: center; }
    .hero-visual { order: -1; }
}

.hero-badge {
    display: inline-block;
    background: var(--pink-100);
    color: var(--pink-700);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.hero h1 {
    color: var(--warm-900);
    margin-bottom: 20px;
}
.hero h1 em {
    color: var(--pink-600);
    font-style: italic;
}

.hero-sub {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 520px;
}

@media (max-width: 860px) {
    .hero-sub { max-width: 100%; }
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* Phone mockup */
.hero-visual {
    display: flex;
    justify-content: center;
}

.phone-frame {
    width: 280px;
    height: 560px;
    background: var(--warm-900);
    border-radius: 40px;
    padding: 12px;
    box-shadow:
        0 20px 60px rgba(45, 36, 33, 0.15),
        0 4px 16px rgba(45, 36, 33, 0.08);
    position: relative;
}

.phone-frame::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 28px;
    background: var(--warm-900);
    border-radius: 0 0 16px 16px;
    z-index: 2;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #fff;
    border-radius: 30px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.screen-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
}

/* ---- Ribbon ---- */

.ribbon {
    background: var(--pink-600);
    padding: 36px 24px;
}

.ribbon-inner {
    max-width: var(--inner-max);
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 20px;
}

.ribbon-stat {
    text-align: center;
}

.ribbon-num {
    display: block;
    font-family: var(--font-display);
    font-size: 1.8rem;
    color: #fff;
}

.ribbon-label {
    display: block;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.75);
    font-weight: 500;
}

/* ---- Section shared ---- */

.section-inner {
    max-width: var(--inner-max);
    margin: 0 auto;
    padding: 0 24px;
}

.section-sub {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 48px;
}

/* ---- Features ---- */

.features {
    padding: var(--section-pad) 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.3s var(--ease);
    opacity: 0;
    transform: translateY(20px);
}
.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}
.feature-card:hover {
    border-color: var(--pink-200);
    box-shadow: 0 8px 32px rgba(232, 114, 143, 0.08);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    margin-bottom: 8px;
    color: var(--warm-800);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ---- How it works ---- */

.how-it-works {
    padding: var(--section-pad) 0;
    background: var(--pink-50);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
}

.step {
    display: flex;
    gap: 28px;
    align-items: flex-start;
    padding: 28px 0;
    border-bottom: 1px solid var(--pink-100);
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.4s var(--ease);
}
.step.visible {
    opacity: 1;
    transform: translateX(0);
}
.step:last-child { border-bottom: none; }

.step-num {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--pink-500);
    color: #fff;
    font-family: var(--font-display);
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-content h3 {
    margin-bottom: 4px;
    color: var(--warm-800);
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ---- Mid-page CTA ---- */

.mid-cta {
    padding: 40px 0;
    text-align: center;
    background: var(--warm-100);
}

.mid-cta-note {
    font-size: 0.85rem;
    color: var(--warm-500);
    margin-top: 10px;
}

/* ---- Curriculum ---- */

.curriculum {
    padding: var(--section-pad) 0;
}

.level-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.level-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s var(--ease);
    opacity: 0;
    transform: translateY(16px);
}
.level-card.visible {
    opacity: 1;
    transform: translateY(0);
}
.level-card:hover {
    border-color: var(--pink-200);
    box-shadow: 0 4px 20px rgba(232, 114, 143, 0.06);
}

.level-year {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--pink-600);
    margin-bottom: 2px;
}

.level-count {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--warm-500);
    margin-bottom: 10px;
}

.level-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ---- Science ---- */

.science {
    padding: var(--section-pad) 0;
    background: var(--warm-100);
}

.science-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.science-card {
    background: #fff;
    border-radius: 20px;
    padding: 32px;
    border: 1px solid var(--border);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s var(--ease);
}
.science-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.science-card h3 {
    margin-bottom: 10px;
    color: var(--warm-800);
}

.science-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Technical details (collapsible) */
.science-details {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
}

.science-details summary {
    padding: 20px 28px;
    font-weight: 600;
    color: var(--warm-700);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
}
.science-details summary::-webkit-details-marker { display: none; }
.science-details summary::before {
    content: '+';
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--pink-500);
    width: 24px;
    text-align: center;
    transition: transform 0.2s var(--ease);
}
.science-details[open] summary::before {
    content: '-';
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 12px 24px;
    padding: 0 28px 24px;
}

.detail-item {
    font-size: 0.88rem;
    color: var(--text-secondary);
    padding: 8px 0;
    border-bottom: 1px solid var(--warm-100);
}
.detail-item strong {
    display: block;
    color: var(--warm-800);
    font-weight: 600;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 2px;
}

/* ---- Testimonials ---- */

.testimonials {
    padding: var(--section-pad) 0;
    background: var(--pink-50);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.testimonial-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s var(--ease);
}
.testimonial-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.testimonial-badge {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--sage);
    background: var(--sage-soft);
    padding: 3px 10px;
    border-radius: 50px;
    margin-bottom: 14px;
}

.testimonial-quote {
    font-size: 1rem;
    color: var(--warm-800);
    line-height: 1.7;
    font-style: italic;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.testimonial-author strong {
    color: var(--warm-800);
    font-size: 0.9rem;
}

.testimonial-author span {
    color: var(--warm-500);
    font-size: 0.82rem;
}

/* ---- Educators ---- */

.educators {
    padding: var(--section-pad) 0;
}

.educator-card {
    background: linear-gradient(135deg, var(--pink-50), var(--warm-100));
    border: 1px solid var(--pink-200);
    border-radius: 24px;
    padding: clamp(32px, 5vw, 56px);
    max-width: 800px;
    margin: 0 auto;
}

.educator-card h2 {
    margin-bottom: 16px;
    color: var(--pink-700);
}

.educator-card p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 16px;
}
.educator-card p:last-child { margin-bottom: 0; }

/* ---- FAQ ---- */

.faq {
    padding: var(--section-pad) 0;
    background: var(--pink-50);
}

.faq-list {
    max-width: 740px;
}

.faq-item {
    border-bottom: 1px solid var(--pink-100);
    opacity: 0;
    transform: translateY(12px);
    transition: all 0.3s var(--ease);
}
.faq-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.faq-item summary {
    padding: 20px 0;
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--warm-800);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '+';
    font-size: 1.4rem;
    font-weight: 300;
    color: var(--pink-400);
    flex-shrink: 0;
    transition: transform 0.2s var(--ease);
}
.faq-item[open] summary::after {
    content: '-';
}

.faq-item p {
    padding: 0 0 20px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ---- Trust row ---- */

.trust-row {
    padding: 32px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.trust-inner {
    max-width: var(--inner-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 32px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--warm-700);
}

.trust-icon {
    font-size: 1.1rem;
}

@media (max-width: 480px) {
    .trust-inner {
        gap: 16px 28px;
    }
}

/* ---- CTA ---- */

.cta {
    padding: var(--section-pad) 0;
    text-align: center;
}

.cta h2 {
    margin-bottom: 12px;
}

.cta p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 28px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-note {
    font-size: 0.85rem !important;
    color: var(--warm-400) !important;
    margin-top: 12px !important;
}

/* ---- Footer ---- */

.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
}

.footer-inner {
    max-width: var(--inner-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-brand {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--pink-600);
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--warm-500);
    font-size: 0.85rem;
    font-weight: 500;
}
.footer-links a:hover { color: var(--pink-600); }

.footer-note {
    font-size: 0.8rem;
    color: var(--warm-400);
    width: 100%;
    text-align: center;
    margin-top: 8px;
}

@media (max-width: 680px) {
    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* ---- Staggered animation delays ---- */

.feature-card:nth-child(1) { transition-delay: 0s; }
.feature-card:nth-child(2) { transition-delay: 0.07s; }
.feature-card:nth-child(3) { transition-delay: 0.14s; }
.feature-card:nth-child(4) { transition-delay: 0.21s; }
.feature-card:nth-child(5) { transition-delay: 0.28s; }
.feature-card:nth-child(6) { transition-delay: 0.35s; }
.feature-card:nth-child(7) { transition-delay: 0.42s; }

.step:nth-child(1) { transition-delay: 0s; }
.step:nth-child(2) { transition-delay: 0.1s; }
.step:nth-child(3) { transition-delay: 0.2s; }
.step:nth-child(4) { transition-delay: 0.3s; }

.level-card:nth-child(1) { transition-delay: 0s; }
.level-card:nth-child(2) { transition-delay: 0.04s; }
.level-card:nth-child(3) { transition-delay: 0.08s; }
.level-card:nth-child(4) { transition-delay: 0.12s; }
.level-card:nth-child(5) { transition-delay: 0.16s; }
.level-card:nth-child(6) { transition-delay: 0.2s; }
.level-card:nth-child(7) { transition-delay: 0.24s; }
.level-card:nth-child(8) { transition-delay: 0.28s; }

.science-card:nth-child(1) { transition-delay: 0s; }
.science-card:nth-child(2) { transition-delay: 0.08s; }
.science-card:nth-child(3) { transition-delay: 0.16s; }

.testimonial-card:nth-child(1) { transition-delay: 0s; }
.testimonial-card:nth-child(2) { transition-delay: 0.1s; }
.testimonial-card:nth-child(3) { transition-delay: 0.2s; }

.faq-item:nth-child(1) { transition-delay: 0s; }
.faq-item:nth-child(2) { transition-delay: 0.05s; }
.faq-item:nth-child(3) { transition-delay: 0.1s; }
.faq-item:nth-child(4) { transition-delay: 0.15s; }
.faq-item:nth-child(5) { transition-delay: 0.2s; }
.faq-item:nth-child(6) { transition-delay: 0.25s; }