/* SMRT Laboratory - Custom Styles */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Thai:wght@300;400;500;600;700&family=Orbitron:wght@400;500;600;700&display=swap');

/* Root Variables */
:root {
    --primary-dark: #1a0a0a;
    --primary-red: #991b1b;
    --accent-red: #ef4444;
    --accent-orange: #f97316;
    --accent-rose: #f43f5e;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans Thai', sans-serif;
    background: linear-gradient(135deg, #1a0a0a 0%, #2d1515 50%, #1a0a0a 100%);
    color: #e2e8f0;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Tech Font for English Headers */
.tech-font {
    font-family: 'Orbitron', sans-serif;
}

/* Glassmorphism Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, #ef4444, #f97316, #f43f5e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Animated Background Particles */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(239, 68, 68, 0.5);
    border-radius: 50%;
    animation: float 15s infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }

    10% {
        opacity: 1;
    }

    90% {
        opacity: 1;
    }

    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

/* Glow Effects */
.glow {
    box-shadow: 0 0 30px rgba(239, 68, 68, 0.3),
        0 0 60px rgba(249, 115, 22, 0.2);
}

.glow-text {
    text-shadow: 0 0 20px rgba(239, 68, 68, 0.5),
        0 0 40px rgba(249, 115, 22, 0.3);
}

/* Button Styles */
.btn-primary {
    background: linear-gradient(135deg, #ef4444, #991b1b);
    color: white;
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-block;
    text-decoration: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(239, 68, 68, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #f97316;
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid #f97316;
    cursor: pointer;
    display: inline-block;
    text-decoration: none;
}

.btn-secondary:hover {
    background: rgba(249, 115, 22, 0.1);
    transform: translateY(-2px);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-link {
    position: relative;
    color: #e2e8f0;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #ef4444, #f97316);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: #f97316;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" stroke="%23ef4444" stroke-width="0.5" fill="none" opacity="0.1"/></svg>') repeat;
    background-size: 100px 100px;
    animation: moveBg 20s linear infinite;
}

@keyframes moveBg {
    0% {
        background-position: 0 0;
    }

    100% {
        background-position: 100px 100px;
    }
}

.robot-icon {
    width: 200px;
    height: 200px;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

/* Section Styles */
section {
    padding: 100px 0;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-align: center;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #94a3b8;
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3rem;
}

/* Research Cards */
.research-card {
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.research-card:hover {
    transform: translateY(-10px);
}

.research-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.research-card:hover::before {
    left: 100%;
}

/* Team Cards */
.team-card {
    text-align: center;
    transition: all 0.3s ease;
}

.team-card:hover {
    transform: translateY(-5px);
}

.team-avatar {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 0 auto 1rem;
    border: 4px solid transparent;
    background: linear-gradient(var(--primary-dark), var(--primary-dark)) padding-box,
        linear-gradient(135deg, #ef4444, #f97316) border-box;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: #ef4444;
}

/* Tools Section */
.tool-card {
    transition: all 0.3s ease;
}

.tool-card:hover {
    transform: scale(1.02);
    border-color: rgba(239, 68, 68, 0.5);
}

.tool-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(249, 115, 22, 0.2));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.3);
    padding: 60px 0 30px;
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #e2e8f0;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-link:hover {
    background: linear-gradient(135deg, #ef4444, #f97316);
    transform: translateY(-3px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1001;
    transition: right 0.3s ease;
    padding: 80px 30px;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Scroll Animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

/* Stats Counter */
.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, #ef4444, #f97316);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #0f172a;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #ef4444, #f97316);
    border-radius: 4px;
}

/* Responsive */
@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }

    .hero h1 {
        font-size: 2.5rem !important;
    }

    section {
        padding: 60px 0;
    }
}