/* 
   CryoLimit Technologies - Global Styles
   Design Theme: Cryogenic Science Aesthetics
*/

:root {
    --color-bg: #001B44;          /* 絕對零度深藍 */
    --color-accent: #00F2FF;      /* 液氮螢光青 */
    --color-secondary: #7000FF;   /* 超導量子紫 */
    --color-text: #F0F8FF;        /* 霜雪純白 */
    --color-glass: rgba(240, 248, 255, 0.1);
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 300;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.font-mono {
    font-family: var(--font-mono);
}

/* Glassmorphism */
.glass-card {
    background: var(--color-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.glass-card:hover {
    border-color: var(--color-accent);
    box-shadow: 0 0 20px rgba(0, 242, 255, 0.2);
}

/* Navbar Customization */
.navbar {
    background: rgba(0, 27, 68, 0.8) !important;
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(0, 242, 255, 0.2);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 700;
    color: var(--color-accent) !important;
    letter-spacing: 3px;
}

.nav-link {
    color: var(--color-text) !important;
    margin: 0 15px;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-accent) !important;
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-content {
    z-index: 10;
    text-align: center;
}

.hero-title {
    font-size: 4rem;
    font-weight: 200;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #fff, var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: 2rem;
    letter-spacing: 5px;
}

/* Animations */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

.floating {
    animation: float 4s ease-in-out infinite;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
    background: var(--color-accent);
    border-radius: 10px;
}

/* Footer */
footer {
    padding: 4rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 4rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

/* Section Titles */
.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h2 {
    display: inline-block;
    position: relative;
    padding-bottom: 15px;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 25%;
    width: 50%;
    height: 2px;
    background: var(--color-accent);
}

/* Buttons */
.btn-cryo {
    background: transparent;
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
    padding: 10px 30px;
    border-radius: 0;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: all 0.3s;
}

.btn-cryo:hover {
    background: var(--color-accent);
    color: var(--color-bg);
    box-shadow: 0 0 15px var(--color-accent);
}