/* Aura Environmental & Micro-Climate Engineering - Custom Styles */

:root {
    --forest-green: #2E4D32;
    --rock-gray: #708090;
    --dawn-gold: #F2E8C9;
    --water-blue: #A2CFFE;
    --off-white: #F8F9FA;
    --deep-gray: #343A40;
}

body {
    font-family: 'Noto Serif TC', serif;
    color: var(--deep-gray);
    background-color: var(--off-white);
    line-height: 1.8;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, .navbar-brand {
    font-family: 'Noto Sans TC', sans-serif;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.navbar {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    padding: 1.5rem 0;
    transition: all 0.3s ease;
}

.navbar-brand {
    color: var(--forest-green) !important;
    font-size: 1.25rem;
}

.nav-link {
    color: var(--rock-gray) !important;
    font-weight: 500;
    margin: 0 10px;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background-color: var(--rock-gray);
    color: white;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(46, 77, 50, 0.7), rgba(112, 128, 144, 0.4));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards 0.5s;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards 0.8s;
}

/* Animations */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Section Styling */
section {
    padding: 100px 0;
}

.section-title {
    color: var(--forest-green);
    margin-bottom: 50px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--dawn-gold);
}

/* Cards & Components */
.card {
    border: none;
    border-radius: 0;
    background-color: white;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    transition: transform 0.3s ease;
}

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

.btn-aura {
    background-color: var(--forest-green);
    color: white;
    border-radius: 0;
    padding: 12px 30px;
    border: none;
    transition: all 0.3s ease;
}

.btn-aura:hover {
    background-color: var(--rock-gray);
    color: white;
}

.footer {
    background-color: var(--forest-green);
    color: rgba(255,255,255,0.8);
    padding: 80px 0 40px;
}

.footer h5 {
    color: var(--dawn-gold);
    margin-bottom: 25px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: 50px;
    padding-top: 30px;
    font-size: 0.9rem;
}

/* Custom Utilities */
.text-forest { color: var(--forest-green); }
.bg-forest { background-color: var(--forest-green); }
.text-rock { color: var(--rock-gray); }
.bg-rock { background-color: var(--rock-gray); }
.bg-dawn { background-color: var(--dawn-gold); }
.bg-water { background-color: var(--water-blue); }

.organic-shape {
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
}