@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;600&family=Outfit:wght@300;400;600;800&family=Space+Grotesk:wght@400;600;700&display=swap');

:root {
    /* Core Palette */
    --electric-indigo: #5B4BDB;
    --deep-violet: #40348F;
    --bright-cyan: #35B9D3;
    --digital-lavender: #B9B0F0;
    --soft-lilac: #DDD8F5;
    --mint-green: #91D8C2;
    --peach: #F2A982;
    --warm-grey: #5D6268;

    /* Derived UI Colors */
    --bg-main: #EAE6F7; 
    --text-main: #2A2165; 
    
    --bg-dark: var(--deep-violet);
    --text-on-dark: #F0EDFA; 
    
    --bg-indigo: var(--electric-indigo);
    --text-on-indigo: #F0EDFA;
    
    --bg-panel: var(--soft-lilac);
    --border-color: var(--digital-lavender);

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Space Grotesk', sans-serif;
    --font-mono: 'Fira Code', monospace;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(3rem, 6vw, 5.5rem); }
h2 { font-size: clamp(2.5rem, 5vw, 4rem); }
h3 { font-size: clamp(2rem, 4vw, 3rem); }

.mono-label {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--electric-indigo);
    display: block;
    margin-bottom: 1rem;
    font-weight: 600;
}

.text-dark { color: var(--text-main); }
.text-light { color: var(--text-on-dark); }
.text-cyan { color: var(--bright-cyan); }
.text-mint { color: var(--mint-green); }
.text-peach { color: var(--peach); }
.text-lavender { color: var(--digital-lavender); }

/* ==========================================================================
   INTERACTIVE CARDS (NEW SYSTEM)
   ========================================================================== */
.card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease, border-color 0.3s ease, background-color 0.3s ease;
    cursor: pointer;
    position: relative;
}

.card-link:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(64, 52, 143, 0.15);
    z-index: 10;
}

.card-img-wrapper {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: 1;
    overflow: hidden;
    border-radius: inherit;
}

.card-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
    mix-blend-mode: multiply;
    opacity: 0.8;
}

.card-link:hover .card-img-wrapper img {
    transform: scale(1.05);
}

.cta-link {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-mono);
    font-weight: 600;
    text-transform: uppercase;
    color: var(--electric-indigo);
    margin-top: 1.5rem;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

.cta-link::after {
    content: '→';
    margin-left: 0.5rem;
    transition: transform 0.3s ease;
}

.card-link:hover .cta-link::after {
    transform: translateX(8px);
}

/* ==========================================================================
   BUTTONS & HEADER
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.125rem;
    border-radius: 50px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: 2px solid transparent;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-indigo { background-color: var(--electric-indigo); color: var(--text-on-indigo); }
.btn-indigo:hover { background-color: var(--text-main); color: var(--text-on-dark); transform: translateY(-3px); box-shadow: 0 10px 20px rgba(91, 75, 219, 0.3); }
.btn-peach { background-color: var(--peach); color: var(--text-main); }
.btn-peach:hover { background-color: var(--text-main); color: var(--peach); transform: translateY(-3px); box-shadow: 0 10px 20px rgba(242, 169, 130, 0.3); }
.btn-outline { background-color: transparent; border-color: var(--electric-indigo); color: var(--electric-indigo); }
.btn-outline:hover { background-color: var(--electric-indigo); color: var(--text-on-indigo); }

.site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; }
.header-top { background-color: var(--deep-violet); color: var(--text-on-dark); display: flex; justify-content: space-between; padding: 0.5rem 2rem; font-family: var(--font-mono); font-size: 0.75rem; }
.header-bottom { background-color: var(--electric-indigo); padding: 1.5rem 2rem; display: flex; justify-content: space-between; align-items: center; border-radius: 0 0 40px 40px; box-shadow: 0 10px 40px rgba(64, 52, 143, 0.2); position: relative; }
.brand-logo { font-family: var(--font-heading); font-size: 1.75rem; font-weight: 800; color: var(--text-on-indigo); text-transform: lowercase; }
.desktop-nav { display: flex; gap: 2rem; }
.desktop-nav a { color: var(--digital-lavender); font-weight: 600; font-size: 1rem; transition: color 0.3s; }
.desktop-nav a:hover, .desktop-nav a.active { color: var(--mint-green); }
.header-cta { background-color: var(--mint-green); color: var(--text-main); padding: 0.75rem 1.5rem; border-radius: 30px; font-family: var(--font-heading); font-weight: 800; text-transform: uppercase; font-size: 0.875rem; transition: all 0.3s; }
.header-cta:hover { background-color: var(--peach); transform: scale(1.05); }
.mobile-menu-btn { display: none; background: none; border: none; color: var(--text-on-indigo); font-size: 2rem; cursor: pointer; }
.header-spacer { height: 140px; }

/* Mobile Menu */
.mobile-nav-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100vh; background-color: var(--deep-violet); z-index: 999; display: flex; flex-direction: column; justify-content: center; align-items: center; transform: translateY(-100%); transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1); }
.mobile-nav-overlay.open { transform: translateY(0); }
.mobile-nav-overlay a { font-family: var(--font-heading); font-size: 2.5rem; color: var(--digital-lavender); margin: 1rem 0; font-weight: 800; text-transform: uppercase; }

/* ==========================================================================
   LAYOUT MODULES
   ========================================================================== */
.hero-section { padding: 4rem 2rem 6rem; max-width: 1400px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.hero-subtitle { font-size: 1.5rem; color: var(--text-main); margin-bottom: 2.5rem; font-weight: 400; }
.hero-buttons { display: flex; gap: 1.5rem; }
.hero-visual { position: relative; border-radius: 40px; background: linear-gradient(135deg, var(--digital-lavender), var(--bright-cyan)); padding: 1rem; box-shadow: 20px 20px 0 var(--deep-violet); }
.hero-image-wrapper { border-radius: 30px; overflow: hidden; position: relative; aspect-ratio: 4/3; }
.hero-image-wrapper img { width: 100%; height: 100%; object-fit: cover; }
.floating-panel { position: absolute; background-color: var(--bg-main); padding: 1rem 1.5rem; border-radius: 20px; font-family: var(--font-mono); font-weight: 600; color: var(--deep-violet); box-shadow: 0 10px 20px rgba(64, 52, 143, 0.15); border: 2px solid var(--electric-indigo); animation: float 6s ease-in-out infinite; }
.panel-1 { top: -20px; right: -20px; background-color: var(--mint-green); animation-delay: 0s; }
.panel-2 { bottom: 40px; left: -30px; background-color: var(--peach); animation-delay: 1s; }
.panel-3 { bottom: -20px; right: 20px; background-color: var(--bright-cyan); animation-delay: 2s; }
.panel-4 { top: 40%; left: -20px; background-color: var(--soft-lilac); animation-delay: 3s; }
@keyframes float { 0% { transform: translateY(0); } 50% { transform: translateY(-15px); } 100% { transform: translateY(0); } }

.section-padding { padding: 8rem 2rem; }
.container { max-width: 1200px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 5rem; }

/* Learning Map Layout */
.learning-map { position: relative; max-width: 900px; margin: 0 auto; }
.learning-map::before { content: ''; position: absolute; top: 0; bottom: 0; left: 40px; width: 4px; background: var(--digital-lavender); border-radius: 4px; }
.map-node { display: flex; margin-bottom: 4rem; position: relative; align-items: flex-start; }
.map-number { width: 84px; height: 84px; background-color: var(--electric-indigo); color: var(--text-on-indigo); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-family: var(--font-heading); font-size: 2rem; font-weight: 800; position: relative; z-index: 2; flex-shrink: 0; box-shadow: 0 0 0 10px var(--bg-main); }
.map-content { margin-left: 3rem; background-color: var(--soft-lilac); padding: 3rem; border-radius: 0 40px 40px 40px; flex-grow: 1; border: 2px solid var(--digital-lavender); height: auto; display: flex; flex-direction: column; }
.map-content h3 { color: var(--deep-violet); margin-bottom: 1rem; font-size: 2rem; }
.map-content p { font-size: 1.125rem; margin-bottom: 1rem; flex-grow: 1; }
.map-node:nth-child(even) .map-content { background-color: var(--mint-green); border-color: var(--mint-green); }
.map-node:nth-child(even) .map-content h3 { color: var(--text-main); }

/* Workshops Grid */
.workshop-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2.5rem; }
.workshop-card { background-color: var(--soft-lilac); padding: 3rem; border-radius: 30px; border: 2px solid var(--digital-lavender); display: flex; flex-direction: column; height: auto; min-height: 350px; }
.workshop-card h3 { color: var(--deep-violet); font-size: 1.75rem; }
.workshop-card p { font-size: 1.125rem; flex-grow: 1; }
.workshop-card:hover { border-color: var(--electric-indigo); background-color: var(--bg-main); }

/* Project Lab */
.project-lab { display: grid; grid-template-columns: repeat(12, 1fr); gap: 2.5rem; }
.project-card { border-radius: 40px; position: relative; display: flex; align-items: flex-end; padding: 3rem; height: auto; min-height: 480px; }
.project-1 { grid-column: span 12; background-color: var(--electric-indigo); }
.project-2 { grid-column: span 6; background-color: var(--bright-cyan); }
.project-3 { grid-column: span 6; background-color: var(--peach); }
.project-info { position: relative; z-index: 2; background: var(--bg-main); padding: 2.5rem; border-radius: 25px; max-width: 90%; border: 2px solid var(--deep-violet); }
.project-info p { font-size: 1.125rem; margin-top: 1rem; }

/* Topics Grid Extended */
.topics-grid-extended { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 2rem; grid-auto-rows: auto; }
.topic-module { border-radius: 25px; padding: 2.5rem; display: flex; flex-direction: column; min-height: 280px; }
.topic-abbr { font-family: var(--font-heading); font-size: 2.5rem; opacity: 0.5; font-weight: 800; margin-bottom: 1.5rem; }
.topic-name { font-size: 1.5rem; text-transform: uppercase; font-family: var(--font-heading); }
.topic-desc { font-size: 1.125rem; font-weight: 400; line-height: 1.5; margin-top: 1rem; flex-grow: 1; opacity: 0.9; }
.bg-mint { background-color: var(--mint-green); color: var(--text-main); }
.bg-mint .cta-link { color: var(--text-main); }
.bg-peach { background-color: var(--peach); color: var(--text-main); }
.bg-peach .cta-link { color: var(--text-main); }
.bg-cyan { background-color: var(--bright-cyan); color: var(--text-main); }
.bg-cyan .cta-link { color: var(--text-main); }
.bg-lavender { background-color: var(--digital-lavender); color: var(--deep-violet); }
.bg-indigo { background-color: var(--electric-indigo); color: var(--text-on-indigo); }
.bg-indigo .cta-link { color: var(--text-on-indigo); }
.topic-module:hover.bg-mint { border-color: var(--text-main); }

/* Skills Grid */
.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2.5rem; }
.skill-card { background: rgba(42, 33, 101, 0.05); padding: 3rem; border-radius: 30px; border: 2px solid transparent; display: flex; flex-direction: column; height: auto; }
.skill-card h3 { font-size: 1.75rem; }
.skill-card p { font-size: 1.125rem; flex-grow: 1; margin-top: 1rem; }
.skill-card:hover { background: rgba(42, 33, 101, 0.1); border-color: var(--electric-indigo); }

/* Dedicated Page Sections */
.article-section h2 { margin-top: 3rem; margin-bottom: 1.5rem; color: var(--deep-violet); font-size: 2.5rem; }
.article-section p { margin-bottom: 1.5rem; font-size: 1.125rem; }
.article-section ul { margin-bottom: 2rem; padding-left: 1.5rem; font-size: 1.125rem; }
.article-section li { margin-bottom: 0.75rem; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; margin-top: 3rem; }

/* Environments & Old Elements preserved */
.environment-section { position: relative; padding: 8rem 2rem; background-color: var(--warm-grey); color: var(--text-on-dark); border-radius: 60px; margin: 0 2rem; overflow: hidden; }
.env-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.3; mix-blend-mode: overlay; }
.env-content { position: relative; z-index: 2; max-width: 800px; }
.env-features { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 3rem; }
.env-feature { background: rgba(42, 33, 101, 0.7); padding: 2rem; border-radius: 20px; backdrop-filter: blur(10px); border: 1px solid var(--digital-lavender); }
.beginner-section { background-color: var(--peach); padding: 8rem 2rem; border-radius: 60px; margin: 4rem 2rem; text-align: center; }

/* FAQ */
.faq-container { max-width: 900px; margin: 0 auto; }
.faq-item { background-color: var(--soft-lilac); border-radius: 20px; margin-bottom: 1rem; overflow: hidden; border: 2px solid transparent; transition: border-color 0.3s; }
.faq-item.active { border-color: var(--electric-indigo); }
.faq-question { padding: 2rem; width: 100%; text-align: left; background: none; border: none; font-family: var(--font-heading); font-size: 1.25rem; font-weight: 600; color: var(--deep-violet); cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-icon { font-family: var(--font-mono); color: var(--electric-indigo); font-size: 1.5rem; transition: transform 0.3s; }
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer { padding: 0 2rem; max-height: 0; overflow: hidden; transition: max-height 0.3s ease-out, padding 0.3s ease; }
.faq-item.active .faq-answer { padding: 0 2rem 2rem; max-height: 500px; }
.faq-answer p { font-size: 1.125rem; }

/* Program Hero & Syllabus */
.program-hero { background-color: var(--electric-indigo); color: var(--text-on-indigo); padding: 8rem 2rem; border-radius: 0 0 60px 60px; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.program-hero h1 { color: var(--peach); }
.program-hero-img { border-radius: 40px; overflow: hidden; border: 4px solid var(--digital-lavender); position: relative; }
.syllabus-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2rem; }
.syllabus-item { background-color: var(--soft-lilac); padding: 2.5rem; border-radius: 30px; border-top: 8px solid var(--electric-indigo); display: flex; flex-direction: column; min-height: 250px; }
.syllabus-item:hover { background-color: var(--bg-main); border-color: var(--deep-violet); }
.syllabus-item p { margin-top: 1rem; flex-grow: 1; font-size: 1.125rem; }

/* CTA & Footer */
.cta-section { background-color: var(--electric-indigo); color: var(--text-on-indigo); padding: 10rem 2rem; text-align: center; border-radius: 100px 100px 0 0; margin-top: 4rem; }
.site-footer { background-color: var(--deep-violet); color: var(--text-on-dark); position: relative; overflow: hidden; padding: 6rem 2rem 2rem; }
.footer-bracket { position: absolute; top: 50%; transform: translateY(-50%); font-family: var(--font-mono); font-size: 40vw; line-height: 1; color: var(--electric-indigo); opacity: 0.2; pointer-events: none; }
.bracket-left { left: -5vw; }
.bracket-right { right: -5vw; }
.footer-content { position: relative; z-index: 2; max-width: 1400px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 4rem; border-bottom: 2px solid var(--digital-lavender); padding-bottom: 4rem; }
.footer-brand h2 { color: var(--peach); font-size: clamp(2rem, 4vw, 4rem); margin-bottom: 1rem; }
.footer-col h5 { color: var(--mint-green); font-family: var(--font-mono); margin-bottom: 2rem; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 1rem; }
.footer-col ul a { color: var(--soft-lilac); font-size: 1.125rem; transition: color 0.3s; }
.footer-col ul a:hover { color: var(--peach); }
.footer-bottom { position: relative; z-index: 2; max-width: 1400px; margin: 2rem auto 0; display: flex; justify-content: space-between; color: var(--digital-lavender); font-family: var(--font-mono); font-size: 0.875rem; }
.footer-legal a { margin-left: 1.5rem; }

/* Responsive adjustments */
@media (max-width: 1024px) {
    .hero-section, .program-hero, .contact-layout { grid-template-columns: 1fr; }
    .hero-visual { order: -1; margin-bottom: 2rem; }
    .project-1, .project-2, .project-3 { grid-column: span 12; }
    .footer-content { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .header-top { flex-direction: column; align-items: center; text-align: center; }
    .desktop-nav, .header-cta { display: none; }
    .mobile-menu-btn { display: block; }
    .map-node { flex-direction: column; }
    .map-content { margin-left: 0; margin-top: 1rem; border-radius: 20px; padding: 2rem; }
    .project-card { padding: 2rem; min-height: 400px; }
    .project-info { max-width: 100%; padding: 1.5rem; }
    .card-link:hover { transform: none; box-shadow: none; }
    .card-link:active { transform: scale(0.98); }
    .card-link:hover .card-img-wrapper img { transform: none; }
    .card-link:hover .cta-link::after { transform: none; }
    .footer-content { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
    .environment-section, .beginner-section { margin: 2rem 1rem; border-radius: 30px; padding: 4rem 1.5rem; }
}