/* ===== CSS Variables & Reset ===== */
:root {
    --bg-color: #05070a;
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --primary: #00ffcc;
    --primary-dark: #00b38f;
    --secondary: #3b82f6;
    --accent: #f59e0b;
    --glass-bg: rgba(20, 25, 35, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --gradient-text: linear-gradient(135deg, var(--primary), var(--secondary));
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Noto Sans SC', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== Typography & Utilities ===== */
.text-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 3rem;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(0, 255, 204, 0.1);
    color: var(--primary);
    border: 1px solid rgba(0, 255, 204, 0.2);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.badge-accent {
    background: rgba(245, 158, 11, 0.1);
    color: var(--accent);
    border-color: rgba(245, 158, 11, 0.2);
}

/* ===== Buttons ===== */
.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary {
    background: var(--primary);
    color: #000;
    box-shadow: 0 0 15px rgba(0, 255, 204, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 0 25px rgba(0, 255, 204, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-main);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 1rem 5%;
    background: rgba(5, 7, 10, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: 1px;
    text-decoration: none;
    color: var(--text-main);
}

.logo:hover {
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.95rem;
}

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

.nav-links a.active {
    color: var(--primary);
    position: relative;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}

.menu-toggle {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-main);
    border-radius: 3px;
    transition: var(--transition);
}

/* ===== Footer ===== */
footer {
    border-top: 1px solid var(--glass-border);
    padding: 2rem 0;
    background: #000;
}

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

.footer-logo {
    font-weight: 900;
    font-size: 1.25rem;
}

.copyright {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ===== Animations ===== */
@keyframes bounce {
    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-10px) translateX(-50%);
    }
    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

@keyframes scroll {
    0% {
        transform: translate(-50%, 0);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, 15px);
        opacity: 0;
    }
}

@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
    100% {
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes scan {
    0% {
        top: 0;
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        top: 100%;
        opacity: 0;
    }
}

/* ===== Scroll Reveal ===== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in {
    opacity: 0;
    transition: opacity 1s ease;
}

.fade-in.visible {
    opacity: 1;
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 3rem;
    }
    .ecosystem-content {
        grid-template-columns: 1fr;
    }
    .project-top-layout {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    .project-header {
        text-align: center;
        margin-bottom: 1rem;
    }
    .project-header .section-subtitle {
        margin: 0 auto !important;
    }
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-box {
        flex-direction: column;
        text-align: center;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 70%;
        background: var(--glass-bg);
        backdrop-filter: blur(15px);
        flex-direction: column;
        justify-content: center;
        transition: 0.4s ease;
        border-left: 1px solid var(--glass-border);
    }

    .nav-links.active {
        right: 0;
    }

    .menu-toggle {
        display: flex;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }
    .hero-cta {
        flex-direction: column;
    }
    .section-title {
        font-size: 2rem;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .contact-box {
        padding: 2rem;
    }
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}