/* ═══════════════════════════════════════════════════════════════
   GREEDHUNTERACADEMY — DESIGN SYSTEM
   Dark, gradient, premium aesthetic
   ═══════════════════════════════════════════════════════════════ */

/* ─── Design Tokens ─── */
:root {
    /* Backgrounds */
    --bg-void: #020204;
    --bg-primary: #050508;
    --bg-secondary: #0A0A10;
    --bg-tertiary: #101018;

    /* Text */
    --text-primary: #FFFFFF;
    --text-secondary: #9898B0;
    --text-muted: #555568;

    /* Section Accent Colors */
    --accent-learn: #FFD700;
    --accent-learn-dim: #BFA000;
    --accent-hack: #FFFFFF;
    --accent-hack-dim: #888888;
    --accent-build: #4FC3F7;
    --accent-build-dim: #2196F3;
    --accent-grow: #00E676;
    --accent-grow-dim: #00C853;
    --accent-grow-gold: #FFD700;

    /* Logo Colors */
    --logo-yellow: #FFC107;
    --logo-blue: #2196F3;
    --logo-black: #000000;

    /* Glows */
    --glow-learn: rgba(255, 215, 0, 0.12);
    --glow-hack: rgba(255, 255, 255, 0.05);
    --glow-build: rgba(79, 195, 247, 0.12);
    --glow-grow: rgba(0, 230, 118, 0.12);

    /* Typography */
    --font-heading: 'Space Grotesk', -apple-system, sans-serif;
    --font-body: 'Inter', -apple-system, sans-serif;

    /* Spacing */
    --section-pad-x: clamp(2rem, 6vw, 8rem);
    --section-pad-y: clamp(3rem, 8vh, 6rem);

    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);

    /* Cursor */
    --cursor-size: 8px;
    --cursor-follower-size: 36px;
}

/* ─── Reset & Base ─── */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: auto; /* GSAP handles smooth scroll */
    overflow-x: hidden;
    scrollbar-width: thin;
    scrollbar-color: #333 var(--bg-primary);
}

html::-webkit-scrollbar {
    width: 6px;
}

html::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

html::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 3px;
}

body {
    font-family: var(--font-body);
    background: var(--bg-void);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    cursor: none;
    overflow-x: hidden;
}

::selection {
    background: rgba(255, 215, 0, 0.3);
    color: #fff;
}

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

/* ─── Noise Overlay ─── */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10000;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}

/* ═══════════════════════════════════════════════════════════════
   CUSTOM CURSOR
   ═══════════════════════════════════════════════════════════════ */
.cursor {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--cursor-size);
    height: var(--cursor-size);
    background: var(--text-primary);
    border-radius: 50%;
    pointer-events: none;
    z-index: 99999;
    transform: translate(-50%, -50%);
    transition: width 0.3s var(--ease-out-expo),
                height 0.3s var(--ease-out-expo),
                background 0.3s ease;
    mix-blend-mode: difference;
    will-change: transform;
}

.cursor-follower {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--cursor-follower-size);
    height: var(--cursor-follower-size);
    border: 1.5px solid rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    pointer-events: none;
    z-index: 99998;
    transform: translate(-50%, -50%);
    transition: width 0.4s var(--ease-out-expo),
                height 0.4s var(--ease-out-expo),
                border-color 0.4s ease,
                background 0.4s ease;
    will-change: transform;
}

.cursor.hover {
    width: 16px;
    height: 16px;
    background: var(--accent-learn);
}

.cursor-follower.hover {
    width: 56px;
    height: 56px;
    border-color: rgba(255, 215, 0, 0.3);
    background: rgba(255, 215, 0, 0.05);
}

/* Section-specific cursor colors */
.cursor.accent-learn { background: var(--accent-learn); }
.cursor-follower.accent-learn { border-color: rgba(255, 215, 0, 0.35); }

.cursor.accent-hack { background: #fff; }
.cursor-follower.accent-hack { border-color: rgba(255, 255, 255, 0.25); }

.cursor.accent-build { background: var(--accent-build); }
.cursor-follower.accent-build { border-color: rgba(79, 195, 247, 0.35); }

.cursor.accent-grow { background: var(--accent-grow); }
.cursor-follower.accent-grow { border-color: rgba(0, 230, 118, 0.35); }

/* Hide custom cursor on touch */
@media (hover: none) and (pointer: coarse) {
    .cursor, .cursor-follower { display: none !important; }
    body { cursor: auto; }
}

/* ═══════════════════════════════════════════════════════════════
   CURTAIN OVERLAY
   ═══════════════════════════════════════════════════════════════ */
.curtain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 50000;
    display: flex;
    pointer-events: none;
}

.curtain-panel {
    width: 50%;
    height: 100%;
    background: var(--bg-void);
    will-change: transform;
}

.curtain-left {
    transform-origin: left center;
}

.curtain-right {
    transform-origin: right center;
}

/* ═══════════════════════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════════════════════ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem var(--section-pad-x);
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.6s ease;
}

.nav.visible {
    opacity: 1;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.nav-logo-greed {
    color: var(--text-primary);
}

.nav-logo-hunter {
    color: var(--logo-yellow);
}

.nav-logo-academy {
    color: var(--logo-blue);
}

.nav-indicator {
    display: flex;
    gap: 10px;
    align-items: center;
}

.nav-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transition: all 0.4s var(--ease-out-expo);
    cursor: none;
}

.nav-dot.active {
    background: var(--text-primary);
    width: 24px;
    border-radius: 4px;
}

/* ═══════════════════════════════════════════════════════════════
   HERO SECTION
   ═══════════════════════════════════════════════════════════════ */
.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background: var(--bg-void);
}

.hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.6;
}

.hero-gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    z-index: 1;
    opacity: 0;
    will-change: transform, opacity;
}

.hero-orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 193, 7, 0.15) 0%, transparent 70%);
    top: 20%;
    left: 20%;
}

.hero-orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(33, 150, 243, 0.12) 0%, transparent 70%);
    bottom: 20%;
    right: 20%;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    opacity: 0;
}

/* .hero-logo-img {
    height: 300px;
    width: 300px;
border-radius: 50%;

} */

.hero-logo {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 2rem;
    line-height: 1.1;
}

.hero-logo-greed {
    color: var(--text-primary);
}

.hero-logo-hunter {
    color: var(--logo-yellow);
}

.hero-logo-academy {
    color: var(--logo-blue);
}

.typewriter-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 4rem;
    margin-bottom: 1.5rem;
}

.typewriter-text {
    font-family: var(--font-heading);
    font-size: clamp(1.6rem, 3.5vw, 3rem);
    font-weight: 500;
    letter-spacing: -0.01em;
    background: linear-gradient(135deg, var(--logo-yellow), var(--logo-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.typewriter-cursor {
    font-family: var(--font-heading);
    font-size: clamp(1.6rem, 3.5vw, 3rem);
    font-weight: 300;
    color: var(--logo-yellow);
    animation: cursorBlink 1s infinite;
    margin-left: 2px;
}

@keyframes cursorBlink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: clamp(0.9rem, 1.5vw, 1.15rem);
    color: var(--text-secondary);
    font-weight: 300;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0;
    transform: translateY(20px);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    z-index: 2;
    opacity: 0;
}

.scroll-text {
    font-family: var(--font-body);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-muted);
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.scroll-line-fill {
    width: 100%;
    height: 50%;
    background: linear-gradient(to bottom, var(--logo-yellow), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(200%); }
}

/* ═══════════════════════════════════════════════════════════════
   THEME SECTIONS — Shared Styles
   ═══════════════════════════════════════════════════════════════ */
.theme-section {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.section-gradient-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* Per-section gradient backgrounds */
.learn-gradient {
    background: radial-gradient(ellipse 60% 50% at 30% 50%, rgba(255, 215, 0, 0.06) 0%, transparent 70%),
                var(--bg-primary);
}

.hack-gradient {
    background: var(--logo-black);
}

.build-gradient {
    background: radial-gradient(ellipse 60% 50% at 70% 50%, rgba(79, 195, 247, 0.06) 0%, transparent 70%),
                radial-gradient(ellipse 40% 40% at 30% 70%, rgba(33, 150, 243, 0.04) 0%, transparent 70%),
                #040410;
}

.grow-gradient {
    background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(0, 230, 118, 0.05) 0%, transparent 60%),
                radial-gradient(ellipse 40% 40% at 60% 30%, rgba(255, 215, 0, 0.04) 0%, transparent 60%),
                var(--bg-primary);
}

/* Parallax background text */
.parallax-text-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    z-index: 1;
    pointer-events: none;
}

.parallax-text {
    font-family: var(--font-heading);
    font-size: clamp(8rem, 22vw, 28rem);
    font-weight: 700;
    letter-spacing: -0.05em;
    white-space: nowrap;
    opacity: 0;
    will-change: transform, opacity;
    user-select: none;
}

.learn-parallax-text {
    color: var(--accent-learn);
    opacity: 0.04;
    text-shadow: 0 0 80px rgba(255, 215, 0, 0.1);
}

.hack-parallax-text {
    color: #111111;
    opacity: 0.08;
}

.build-parallax-text {
    color: var(--accent-build);
    opacity: 0.04;
    text-shadow: 0 0 80px rgba(79, 195, 247, 0.08);
}

.grow-parallax-text {
    color: var(--accent-grow);
    opacity: 0.04;
    text-shadow: 0 0 80px rgba(0, 230, 118, 0.08);
}

/* Section inner layout */
.section-inner {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--section-pad-y) var(--section-pad-x);
    display: grid;
    grid-template-columns: auto 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.section-number {
    font-family: var(--font-heading);
    font-size: clamp(4rem, 8vw, 7rem);
    font-weight: 700;
    color: rgba(255, 255, 255, 0.04);
    line-height: 1;
    writing-mode: vertical-lr;
    text-orientation: mixed;
    opacity: 0;
    transform: translateX(-30px);
}

.section-body {
    opacity: 0;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 6vw, 5.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin-bottom: 1rem;
    transform: translateY(30px);
}

.learn-title {
    background: linear-gradient(135deg, #FFD700, #FFA000);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hack-title {
    color: #FFFFFF;
    text-shadow: 0 0 30px rgba(255, 255, 255, 0.1);
}

.build-title {
    background: linear-gradient(135deg, #4FC3F7, #2196F3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.grow-title {
    background: linear-gradient(135deg, #00E676, #FFD700);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-line {
    width: 60px;
    height: 2px;
    margin-bottom: 1.5rem;
    opacity: 0;
    transform-origin: left;
    transform: scaleX(0);
}

.learn-line { background: linear-gradient(90deg, var(--accent-learn), transparent); }
.hack-line { background: linear-gradient(90deg, #444, transparent); }
.build-line { background: linear-gradient(90deg, var(--accent-build), transparent); }
.grow-line { background: linear-gradient(90deg, var(--accent-grow), transparent); }

.section-description {
    font-size: clamp(0.95rem, 1.2vw, 1.1rem);
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 480px;
    opacity: 0;
    transform: translateY(20px);
}

.hack-description {
    color: #777;
}

/* ======================================================
   UPDATED: Section Description Typewriter
   ====================================================== */

.typewriter-description {
    min-height: 180px;
}

.typewriter-description.typing::after {
    content: "|";
    animation: cursorBlink 0.8s infinite;
    color: currentColor;
    margin-left: 2px;
}

/* Section SVG visuals */
.section-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
}

.section-svg {
    width: 100%;
    max-width: 380px;
    height: auto;
}

/* ─── Hack Section Special: Scanlines ─── */
.scanline-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(255, 255, 255, 0.008) 2px,
        rgba(255, 255, 255, 0.008) 4px
    );
    z-index: 1;
    pointer-events: none;
}

/* Hack number special style */
.hack-number span {
    color: rgba(255, 255, 255, 0.03);
}

/* SVG animation classes */
.svg-line,
.svg-line-secondary {
    stroke-dasharray: 300;
    stroke-dashoffset: 300;
}

.svg-code-line {
    opacity: 0;
}

.svg-block {
    opacity: 0;
    transform-origin: center bottom;
}

.svg-branch {
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
}

.svg-cursor-blink {
    animation: cursorBlink 1s infinite;
}

.svg-node {
    opacity: 0;
    transform-origin: center;
}

.svg-ring {
    opacity: 0;
    transform-origin: center;
}

.svg-leaf {
    opacity: 0;
    transform-origin: center;
}

.svg-particle {
    opacity: 0;
}

/* ═══════════════════════════════════════════════════════════════
   CLOSING SECTION
   ═══════════════════════════════════════════════════════════════ */
.closing-section {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.closing-gradient-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(255, 215, 0, 0.04) 0%, transparent 60%),
                var(--bg-primary);
}

.closing-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.closing-words {
    display: flex;
    justify-content: center;
    gap: clamp(1rem, 3vw, 3rem);
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.closing-word {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--word-color, #fff);
    opacity: 0;
    transform: translateY(60px);
    will-change: transform, opacity;
}

.closing-tagline {
    font-family: var(--font-body);
    font-size: clamp(0.9rem, 1.5vw, 1.15rem);
    color: var(--text-muted);
    font-weight: 300;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    opacity: 0;
    transform: translateY(30px);
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
.footer {
    position: relative;
    width: 100%;
    padding: 3rem var(--section-pad-x);
    background: var(--bg-void);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
}

.footer-brand {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.footer-logo-greed { color: var(--text-primary); }
.footer-logo-hunter { color: var(--logo-yellow); }
.footer-logo-academy { color: var(--logo-blue); }

.footer-divider {
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
}

.footer-email {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    transition: color 0.3s ease;
    cursor: none;
    position: relative;
}

.footer-email::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--logo-yellow);
    transition: width 0.4s var(--ease-out-expo);
}

.footer-email:hover {
    color: var(--logo-yellow);
}

.footer-email:hover::after {
    width: 100%;
}

.footer-copy {
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
    .section-inner {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .section-number {
        writing-mode: horizontal-tb;
        text-orientation: mixed;
    }

    .section-description {
        max-width: 100%;
        margin: 0 auto;
    }

    .section-visual {
        order: -1;
    }

    .section-svg {
        max-width: 280px;
    }

    .section-line {
        margin-left: auto;
        margin-right: auto;
    }
}

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

    .hero-logo {
        font-size: clamp(1.8rem, 7vw, 2.8rem);
    }

    .closing-words {
        flex-direction: column;
        gap: 0.5rem;
    }

    .section-svg {
        max-width: 220px;
    }
}

@media (max-width: 480px) {
    :root {
        --section-pad-x: 1.5rem;
    }

    .hero-logo {
        font-size: 1.6rem;
    }

    .typewriter-text,
    .typewriter-cursor {
        font-size: 1.3rem;
    }

    .section-title {
        font-size: 2.5rem;
    }

    .parallax-text {
        font-size: 5rem;
    }
}

/* ═══════════════════════════════════════════════════════════════
   UTILITY ANIMATIONS
   ═══════════════════════════════════════════════════════════════ */

/* Glitch effect for hack section */
@keyframes glitch {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(2px, -2px); }
    60% { transform: translate(-1px, -1px); }
    80% { transform: translate(1px, 1px); }
}

@keyframes glitchColor {
    0%, 100% { text-shadow: none; }
    25% { text-shadow: -2px 0 #ff0040, 2px 0 #00ffff; }
    50% { text-shadow: 2px 0 #ff0040, -2px 0 #00ffff; }
    75% { text-shadow: -1px 0 #ff0040, 1px 0 #00ffff; }
}

.hack-title.glitch-active {
    animation: glitchColor 0.3s ease-in-out;
}

/* Float animation for SVG particles */
@keyframes floatUp {
    0% { transform: translateY(0); opacity: 0.3; }
    100% { transform: translateY(-20px); opacity: 0; }
}

/* Gear rotation */
@keyframes rotateGear {
    from { transform-origin: center; }
    to { transform: rotate(360deg); }
}

/* Pulse glow for nodes */
@keyframes pulseGlow {
    0%, 100% { filter: drop-shadow(0 0 3px currentColor); }
    50% { filter: drop-shadow(0 0 10px currentColor); }
}