/* Kirisna Saibole - Unique Ice-Neon Split Hero + Clean Grid Style */
:root {
    --bg: #0B1621;
    --card-bg: #13253A;
    --accent-ice: #00E5FF;
    --accent-purple: #A78BFA;
    --accent-gold: #FBBF24;
    --text-primary: #E0F0FF;
    --text-secondary: #8BA4C0;
    --border: rgba(0, 229, 255, 0.12);
}

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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.75;
}

/* Modern Header with Tabs */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(11, 22, 33, 0.95);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 26px;
    font-weight: 800;
    letter-spacing: -1.2px;
    color: var(--accent-ice);
}

.nav-tabs {
    display: flex;
    gap: 8px;
    background: #13253A;
    padding: 6px;
    border-radius: 9999px;
}

.nav-tabs a {
    padding: 10px 24px;
    border-radius: 9999px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.nav-tabs a.active,
.nav-tabs a:hover {
    background: var(--accent-ice);
    color: #0B1621;
}

/* Split Screen Hero */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding-top: 80px;
}

.hero-left {
    padding: 80px 60px 80px 80px;
    max-width: 620px;
}

.hero-right {
    background: linear-gradient(135deg, #00E5FF 0%, #A78BFA 100%);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-right::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        45deg,
        rgba(255,255,255,0.08) 0px,
        rgba(255,255,255,0.08) 2px,
        transparent 2px,
        transparent 18px
    );
}

.hero-content h1 {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -3px;
    margin-bottom: 28px;
}

.hero-content p {
    font-size: 20px;
    color: #A8C5D8;
    margin-bottom: 48px;
}

/* Ice-Neon Buttons */
.ice-button {
    background: transparent;
    border: 2px solid var(--accent-ice);
    color: var(--accent-ice);
    padding: 16px 34px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    border-radius: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.25);
    text-decoration: none;
    display: inline-block;
}

.ice-button:hover {
    background: var(--accent-ice);
    color: #0B1621;
    box-shadow: 0 0 30px var(--accent-ice);
    transform: translateY(-2px);
}

/* Articles Section - Clean 3-Column Grid */
.articles-section {
    max-width: 1280px;
    margin: 0 auto;
    padding: 100px 40px;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: 44px;
    font-weight: 800;
    letter-spacing: -1.5px;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.article-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px 28px;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    cursor: pointer;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.25);
    border-color: var(--accent-ice);
}

.article-card .tag {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--accent-purple);
    margin-bottom: 14px;
    font-weight: 700;
}

.article-card h3 {
    font-size: 20px;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 16px;
}

.article-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 22px;
}

.read-more {
    color: var(--accent-ice);
    font-weight: 600;
    font-size: 14px;
}

/* Form */
.form-wrapper {
    max-width: 560px;
    margin: 0 auto;
    padding: 80px 40px;
    background: #13253A;
    border-radius: 16px;
}

.form-input {
    width: 100%;
    background: #0B1621;
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 17px 22px;
    font-size: 15px;
    border-radius: 8px;
    margin-bottom: 16px;
}

.form-input:focus {
    border-color: var(--accent-ice);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
    outline: none;
}

textarea.form-input {
    min-height: 140px;
    resize: vertical;
}

/* Footer */
footer {
    background: #08101A;
    padding: 70px 40px 50px;
    border-top: 1px solid var(--border);
}

.footer-grid {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 60px;
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(11, 22, 33, 0.96);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active { display: flex; }

.modal-content {
    max-width: 760px;
    width: 100%;
    background: var(--card-bg);
    border: 1px solid var(--accent-ice);
    border-radius: 16px;
    padding: 48px;
    position: relative;
    max-height: 82vh;
    overflow-y: auto;
}

.modal-close {
    position: absolute;
    top: 22px;
    right: 26px;
    font-size: 30px;
    color: var(--text-secondary);
    cursor: pointer;
}

.modal-close:hover { color: var(--accent-ice); }

/* Responsive */
@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
    }
    .hero-right {
        display: none;
    }
    .nav-tabs {
        display: none;
    }
    .mobile-menu {
        display: flex;
    }
}