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

:root {
    --white: #ffffff;
    --off-white: #e8e8e8;
    --gray-100: #c0c0c0;
    --gray-200: #888888;
    --gray-300: #555555;
    --gray-400: #333333;
    --gray-500: #1a1a1a;
    --bg: #0a0a0a;
    --bg-elevated: #111111;
    --bg-card: #0f0f0f;
    --accent: #00d4ff;
    --accent-dim: rgba(0, 212, 255, 0.08);
    --accent-glow: rgba(0, 212, 255, 0.15);
    --green: #00ff88;
    --amber: #ffaa00;
    --red: #ff4444;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--off-white);
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: var(--accent);
    color: var(--bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 3rem;
}

/* ===== Background Grid Canvas ===== */
#grid-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.4;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 3rem;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    transition: background 0.3s, box-shadow 0.3s;
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.95);
    box-shadow: 0 1px 40px rgba(0, 0, 0, 0.5);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: var(--white);
}

.logo-mark {
    color: var(--accent);
    font-size: 0.9rem;
}

.logo-text {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--gray-200);
    text-decoration: none;
    font-size: 0.8rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-links a:hover {
    color: var(--white);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s;
}

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

.nav-mobile-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}

.nav-mobile-btn span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--white);
    transition: transform 0.3s;
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    padding: 8rem 3rem 4rem;
    overflow: hidden;
}

.hero-inner {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.7rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeIn 1s ease 0.2s forwards;
}

.tag-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
    margin-bottom: 2rem;
}

.title-line {
    display: block;
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -2px;
    color: var(--white);
    opacity: 0;
    transform: translateY(40px);
    animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.title-line[data-delay="0"] { animation-delay: 0.4s; }
.title-line[data-delay="1"] { animation-delay: 0.6s; }
.title-line[data-delay="2"] { animation-delay: 0.8s; }

.title-accent {
    background: linear-gradient(135deg, var(--accent) 0%, #7b61ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--gray-200);
    max-width: 560px;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    opacity: 0;
    animation: fadeIn 1s ease 1s forwards;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
    opacity: 0;
    animation: fadeIn 1s ease 1.2s forwards;
}

.hero-scroll-hint {
    position: absolute;
    bottom: 3rem;
    right: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    opacity: 0;
    animation: fadeIn 1s ease 2s forwards;
}

.hero-scroll-hint span {
    font-size: 0.65rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gray-300);
    writing-mode: vertical-rl;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; height: 60px; }
    50% { opacity: 0.3; height: 40px; }
}

/* ===== Buttons ===== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    font-size: 0.85rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--bg);
    background: var(--white);
    font-weight: 600;
    font-family: var(--font-sans);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    background: var(--accent);
    color: var(--bg);
    transform: translateY(-1px);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.2);
}

.btn-primary .arrow {
    transition: transform 0.3s;
}

.btn-primary:hover .arrow {
    transform: translateX(4px);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    padding: 0.9rem 2rem;
    font-size: 0.85rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--gray-100);
    background: transparent;
    border: 1px solid var(--gray-400);
    font-weight: 500;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-ghost:hover {
    border-color: var(--gray-200);
    color: var(--white);
    background: rgba(255, 255, 255, 0.03);
}

.btn-lg {
    padding: 1.1rem 2.5rem;
    font-size: 0.9rem;
}

/* ===== Section Common ===== */
.section {
    position: relative;
    z-index: 1;
    padding: 8rem 0;
}

.section-label {
    font-size: 0.7rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 2rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 4rem;
    color: var(--white);
}

/* ===== About Section ===== */
.section-about {
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.about-layout {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: start;
    margin-bottom: 5rem;
}

.about-headline h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -1px;
    color: var(--white);
}

.about-body p {
    color: var(--gray-200);
    font-size: 1rem;
    line-height: 1.9;
    margin-bottom: 1.5rem;
}

/* Metric Strip */
.metric-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.metric {
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.metric.visible {
    opacity: 1;
    transform: translateY(0);
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--white);
    font-variant-numeric: tabular-nums;
}

.metric-label {
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gray-300);
    margin-top: 0.3rem;
}

.metric-divider {
    width: 1px;
    height: 50px;
    background: rgba(255, 255, 255, 0.08);
}

/* ===== Projects Section ===== */
.section-projects {
    background: linear-gradient(180deg, transparent 0%, rgba(0, 212, 255, 0.02) 50%, transparent 100%);
}

.project-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
    padding: 4rem;
    margin-bottom: 3rem;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.04);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease, border-color 0.4s;
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-card:hover {
    border-color: rgba(0, 212, 255, 0.12);
}

.project-number {
    position: absolute;
    top: 2rem;
    right: 3rem;
    font-size: 5rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.02);
    letter-spacing: -3px;
    line-height: 1;
    pointer-events: none;
}

.project-tag {
    font-size: 0.7rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 1rem;
}

.project-name {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--white);
    margin-bottom: 1rem;
}

.project-desc {
    color: var(--gray-200);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.project-features {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.feature {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.feature-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--accent);
    padding: 6px;
}

.feature-icon svg {
    width: 18px;
    height: 18px;
}

.feature strong {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.15rem;
}

.feature span {
    font-size: 0.8rem;
    color: var(--gray-300);
    line-height: 1.5;
}

/* ===== Project Visual - Trading ===== */
.project-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 350px;
}

.visual-trading {
    width: 100%;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.04);
    padding: 1.5rem;
    position: relative;
}

.chart-grid {
    height: 180px;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    margin-bottom: 1rem;
    overflow: hidden;
}

.chart-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.trade-signals {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.signal {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.65rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--gray-200);
    font-family: var(--font-mono);
}

.signal-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.signal-dot.buy { background: var(--green); box-shadow: 0 0 8px var(--green); }
.signal-dot.hold { background: var(--amber); box-shadow: 0 0 8px var(--amber); animation: pulse-dot 1.5s infinite; }
.signal-dot.data { background: var(--accent); box-shadow: 0 0 8px var(--accent); animation: pulse-dot 1s infinite; }

/* ===== Project Visual - Game ===== */
.visual-game {
    width: 100%;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.04);
    overflow: hidden;
}

.game-world {
    height: 240px;
    position: relative;
    background:
        radial-gradient(ellipse at 30% 80%, rgba(0, 212, 255, 0.05) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 40%, rgba(123, 97, 255, 0.04) 0%, transparent 50%);
    overflow: hidden;
}

.terrain {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: linear-gradient(0deg, rgba(0, 212, 255, 0.03) 0%, transparent 100%);
    clip-path: polygon(0 60%, 8% 45%, 15% 55%, 25% 30%, 35% 50%, 45% 25%, 55% 40%, 65% 20%, 75% 35%, 85% 25%, 95% 45%, 100% 35%, 100% 100%, 0 100%);
}

.entity {
    position: absolute;
    border-radius: 50%;
    animation: entityFloat 6s ease-in-out infinite;
}

.entity-1 {
    width: 8px;
    height: 8px;
    background: var(--accent);
    box-shadow: 0 0 15px var(--accent), 0 0 30px rgba(0, 212, 255, 0.3);
    top: 35%;
    left: 25%;
    animation-delay: 0s;
}

.entity-2 {
    width: 6px;
    height: 6px;
    background: #7b61ff;
    box-shadow: 0 0 12px #7b61ff;
    top: 50%;
    left: 55%;
    animation-delay: 2s;
}

.entity-3 {
    width: 5px;
    height: 5px;
    background: var(--green);
    box-shadow: 0 0 10px var(--green);
    top: 25%;
    left: 75%;
    animation-delay: 4s;
}

.ai-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 50%;
    animation: aiPulse 4s ease-in-out infinite;
}

@keyframes entityFloat {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(15px, -10px); }
    50% { transform: translate(-10px, -20px); }
    75% { transform: translate(20px, -5px); }
}

@keyframes aiPulse {
    0% { transform: translate(-50%, -50%) scale(0.5); opacity: 0.6; }
    50% { transform: translate(-50%, -50%) scale(1.5); opacity: 0; }
    100% { transform: translate(-50%, -50%) scale(0.5); opacity: 0.6; }
}

.game-hud {
    display: flex;
    gap: 1.5rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    background: rgba(0, 0, 0, 0.3);
    flex-wrap: wrap;
}

.hud-item {
    font-size: 0.6rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--gray-300);
    font-family: var(--font-mono);
}

.hud-item em {
    font-style: normal;
    color: var(--accent);
}

/* ===== Philosophy Section ===== */
.section-philosophy {
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.philosophy-text h2 {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: -0.5px;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.philosophy-text h2 em {
    font-style: normal;
    color: var(--accent);
}

.philosophy-text p {
    color: var(--gray-200);
    font-size: 1rem;
    line-height: 1.9;
}

/* ===== Terminal Window ===== */
.terminal-window {
    background: #0c0c0c;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.terminal-window.visible {
    opacity: 1;
    transform: translateY(0);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.9rem 1.2rem;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.terminal-title {
    margin-left: auto;
    font-size: 0.7rem;
    color: var(--gray-300);
    font-family: var(--font-mono);
}

.terminal-body {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 2.2;
}

.term-line {
    white-space: nowrap;
    overflow: hidden;
}

.prompt {
    color: var(--accent);
    font-weight: 700;
    margin-right: 8px;
}

.term-line.output {
    color: var(--gray-200);
    padding-left: 1.2rem;
}

.cursor-blink {
    animation: blink 1s step-end infinite;
    color: var(--accent);
}

@keyframes blink {
    50% { opacity: 0; }
}

/* ===== Contact Section ===== */
.section-contact {
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    text-align: center;
}

.contact-inner {
    max-width: 600px;
    margin: 0 auto;
}

.contact-inner h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.contact-inner p {
    color: var(--gray-200);
    margin-bottom: 2.5rem;
    font-size: 1rem;
}

/* ===== Footer ===== */
.footer {
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    position: relative;
    z-index: 1;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.footer-logo {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--white);
}

.footer-logo .logo-mark {
    color: var(--accent);
}

.footer-copy {
    font-size: 0.75rem;
    color: var(--gray-300);
}

.footer-right {
    text-align: right;
}

.footer-tagline {
    font-size: 0.75rem;
    color: var(--gray-300);
    font-family: var(--font-mono);
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== Chart Animation (SVG drawn via JS, here are base styles) ===== */
.chart-svg {
    width: 100%;
    height: 100%;
}

.chart-path {
    fill: none;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.chart-path-1 {
    stroke: var(--accent);
    filter: drop-shadow(0 0 6px rgba(0, 212, 255, 0.4));
}

.chart-path-2 {
    stroke: #7b61ff;
    stroke-dasharray: 4 4;
    opacity: 0.5;
}

.chart-area {
    opacity: 0.08;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .container {
        padding: 0 2rem;
    }

    .project-card {
        grid-template-columns: 1fr;
        padding: 2.5rem;
    }

    .about-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .philosophy-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 1rem 1.5rem;
    }

    .nav-links {
        display: none;
    }

    .nav-mobile-btn {
        display: flex;
    }

    .hero {
        padding: 7rem 1.5rem 3rem;
    }

    .title-line {
        letter-spacing: -1px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero-scroll-hint {
        display: none;
    }

    .container {
        padding: 0 1.5rem;
    }

    .section {
        padding: 5rem 0;
    }

    .metric-strip {
        flex-direction: column;
        gap: 2rem;
    }

    .metric-divider {
        width: 60px;
        height: 1px;
    }

    .project-card {
        padding: 2rem;
        gap: 2rem;
    }

    .project-number {
        font-size: 3rem;
        top: 1rem;
        right: 1.5rem;
    }

    .trade-signals {
        flex-direction: column;
        gap: 0.5rem;
    }

    .game-hud {
        flex-direction: column;
        gap: 0.5rem;
    }

    .footer-inner {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .footer-left {
        flex-direction: column;
        gap: 0.5rem;
    }

    .footer-right {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title .title-line {
        font-size: 2.2rem;
    }

    .metric-value {
        font-size: 2rem;
    }

    .project-name {
        font-size: 1.4rem;
    }
}