/* HDNCG - Custom Design System (Vanilla CSS) */

:root {
    --color-primary: #0F172A; /* Deep Navy/Black */
    --color-secondary: #F97316; /* Nepali Saffron/Orange */
    --color-accent: #0D9488; /* Teal Accent */
    --color-text: #1E293B;
    --color-text-light: #64748B;
    --color-white: #FFFFFF;
    --color-bg-warm: #FAF9F6; /* Warm off-white / Paper feel */
    --color-bg-light: #F8FAFC;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --shadow-soft: 0 4px 20px -2px rgba(0, 0, 0, 0.05), 0 2px 10px -2px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

body {
    font-family: var(--font-body);
    color: var(--color-text);
    line-height: 1.7;
    background-color: var(--color-bg-warm);
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.2;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 8rem 0;
}

/* Typography Helpers */
.text-gold { color: var(--color-secondary); }
.text-teal { color: var(--color-accent); }
.text-white { color: var(--color-white); }
.text-center { text-align: center; }
.uppercase { text-transform: uppercase; letter-spacing: 0.15em; }
.text-xs { font-size: 0.7rem; }
.font-bold { font-weight: 700; }
.font-black { font-weight: 900; }

/* Navbar */
.navbar {
    background: rgba(250, 249, 246, 0.8);
    backdrop-filter: blur(20px);
    height: 90px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo-text {
    font-size: 1.5rem;
    font-family: var(--font-heading);
    font-weight: 900;
    color: var(--color-primary);
    letter-spacing: -1px;
}

.nav-links {
    display: none;
    gap: 3rem;
    list-style: none;
}

@media (min-width: 992px) {
    .nav-links { display: flex; align-items: center; }
}

.nav-links a {
    text-decoration: none;
    color: var(--color-text-light);
    font-weight: 500;
    font-size: 0.85rem;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-secondary);
    transition: var(--transition);
}

.nav-links a:hover::after, .nav-links a.active::after {
    width: 100%;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--color-primary);
}

.btn-inquiry {
    background: var(--color-primary);
    color: white !important;
    padding: 0.75rem 1.8rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.8rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.btn-inquiry:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(249, 115, 22, 0.3);
}

/* Hero */
.hero {
    background: var(--color-primary);
    position: relative;
    padding: 12rem 0;
    color: white;
    overflow: hidden;
    border-radius: 0 0 5rem 5rem;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('https://images.unsplash.com/photo-1544735032-6a51bd74a4a1?auto=format&fit=crop&q=80&w=2070');
    background-size: cover;
    background-position: center;
    opacity: 0.2;
    mix-blend-mode: luminosity;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 4.5rem;
    line-height: 1;
    margin-bottom: 2rem;
    color: white;
    letter-spacing: -2px;
}

@media (max-width: 768px) {
    .hero h1 { font-size: 3rem; }
    section { padding: 5rem 0; }
}

.hero p {
    font-size: 1.25rem;
    color: #94A3B8;
    margin-bottom: 3rem;
    max-width: 650px;
    font-weight: 300;
}

/* Stats */
.stats-strip {
    background: white;
    padding: 3rem;
    border-radius: 2rem;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    box-shadow: var(--shadow-md);
    margin-top: -6rem;
    position: relative;
    z-index: 10;
    border: 1px solid rgba(0, 0, 0, 0.02);
}

@media (min-width: 768px) {
    .stats-strip { grid-template-columns: repeat(4, 1fr); }
}

.stat-value {
    display: block;
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 2.5rem;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

/* Cards & Services */
.card {
    background: white;
    padding: 3.5rem;
    border-radius: 2.5rem;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(0, 0, 0, 0.03);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-secondary);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle at top right, rgba(249, 115, 22, 0.05), transparent);
}

/* Decorative Classes */
.oval-mask {
    border-radius: 999px;
    aspect-ratio: 4/5;
    object-fit: cover;
}

.pattern-dots {
    background-image: radial-gradient(#cbd5e1 1px, transparent 1px);
    background-size: 20px 20px;
}

.btn {
    padding: 1.1rem 2.5rem;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.85rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.btn-accent {
    background: var(--color-secondary);
    color: white;
}

.btn-accent:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 25px -5px rgba(249, 115, 22, 0.2);
}

.btn-outline {
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
}

.btn-outline:hover {
    background: white;
    color: var(--color-primary);
}

/* Footer */
footer {
    background: #020617;
    color: white;
    padding: 8rem 0 3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 3rem;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 992px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

.footer-col h4 {
    color: white;
    margin-bottom: 2rem;
    font-size: 1.25rem;
    font-family: var(--font-heading);
    letter-spacing: 0;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col ul li a {
    color: #cbd5e1;
    text-decoration: none;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--color-secondary);
    padding-left: 5px;
}

.copyright {
    display: flex;
    justify-content: space-between;
    padding-top: 2rem;
    font-size: 0.75rem;
    color: #64748b;
    text-transform: uppercase;
    font-weight: 600;
}