/* =========================================
   Kinsoft Premium Design System - 'Cosmic Glass'
   ========================================= */

:root {
    /* Color Palette */
    --bg-dark: #050510;
    --bg-mesh: radial-gradient(at 0% 0%, hsla(253, 16%, 7%, 1) 0, transparent 50%),
        radial-gradient(at 50% 0%, hsla(225, 39%, 30%, 1) 0, transparent 50%),
        radial-gradient(at 100% 0%, hsla(339, 49%, 30%, 1) 0, transparent 50%);

    --text-main: #ffffff;
    --text-muted: #94a3b8;

    --accent-primary: #3b82f6;
    --accent-glow: #60a5fa;
    --accent-secondary: #8b5cf6;

    --glass-surface: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-highlight: rgba(255, 255, 255, 0.15);

    /* Spacing & Layout */
    --container-width: 1200px;
    --header-height: 160px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

/* --- Global Reset & Base --- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-dark);
    background-image: var(--bg-mesh);
    background-attachment: fixed;
    background-size: cover;
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}

ul {
    list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
}

/* --- Utilities --- */
.my-4 {
    margin-top: 4rem;
    margin-bottom: 4rem;
}

.mt-auto {
    margin-top: auto;
}

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

.d-flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.align-center {
    align-items: center;
}

.gap-2 {
    gap: 1rem;
}

.gap-4 {
    gap: 2rem;
}

/* --- Components: Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    backdrop-filter: blur(4px);
}

.btn-outline:hover {
    background: var(--glass-surface);
    border-color: var(--accent-glow);
}

/* --- Components: Cards (Glassmorphism) --- */
.glass-card {
    background: var(--glass-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 2rem;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.glass-card:hover {
    border-color: var(--glass-highlight);
    transform: translateY(-4px);
}

/* --- Header --- */
.site-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
    background: rgba(5, 5, 16, 0.6);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
}

.logo img {
    height: 140px;
    width: auto;
    border-radius: 6px;
}

.nav-list {
    display: flex;
    gap: 2rem;
}

.nav-list a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.nav-list a:hover {
    color: var(--text-main);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

/* --- Forms --- */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* --- Footer --- */
.site-footer {
    padding: 3rem 0;
    border-top: 1px solid var(--glass-border);
    margin-top: auto;
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

/* --- Responsive Grid --- */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

@media (max-width: 768px) {
    .grid-3 {
        grid-template-columns: 1fr;
    }

    .header-inner {
        flex-direction: column;
        gap: 1rem;
    }
}