/* ============================================
   DHVANI LLC - Corporate Website Styles
   ============================================ */

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

:root {
    --primary: #0f2b46;
    --primary-light: #1a3d5c;
    --accent: #2e86de;
    --accent-light: #54a0ff;
    --accent-dark: #1b6ec2;
    --text: #2c3e50;
    --text-light: #5a6c7d;
    --text-muted: #8395a7;
    --bg: #ffffff;
    --bg-alt: #f7f9fc;
    --bg-dark: #0a1628;
    --border: #e4e9f0;
    --shadow: rgba(15, 43, 70, 0.08);
    --shadow-lg: rgba(15, 43, 70, 0.12);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--accent-dark);
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Header & Navigation --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition);
    background: transparent;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    padding: 12px 0;
    box-shadow: 0 2px 20px var(--shadow);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
    text-decoration: none;
}

.logo span {
    color: var(--accent);
    font-weight: 400;
    margin-left: 2px;
}

.header:not(.scrolled) .logo {
    color: #fff;
}

.header:not(.scrolled) .logo span {
    color: var(--accent-light);
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--transition);
}

.nav-links a:hover {
    color: var(--accent);
}

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

.header:not(.scrolled) .nav-links a {
    color: rgba(255, 255, 255, 0.85);
}

.header:not(.scrolled) .nav-links a:hover {
    color: #fff;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: all var(--transition);
    border-radius: 2px;
}

.header:not(.scrolled) .nav-toggle span {
    background: #fff;
}

/* --- Hero Section --- */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #1a3d5c 50%, #0f3460 100%);
    padding: 180px 0 120px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(46, 134, 222, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(84, 160, 255, 0.1) 0%, transparent 50%);
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to top, var(--bg), transparent);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
}

.hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    color: #fff;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 560px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(46, 134, 222, 0.35);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    transform: translateY(-2px);
}

/* --- Section Headers --- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto;
}

/* --- About Section --- */
.about {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 1.02rem;
}

.about-highlights {
    margin-top: 32px;
}

.about-highlights li {
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}

.about-highlights li:last-child {
    border-bottom: none;
}

.about-highlights strong {
    display: block;
    color: var(--primary);
    font-size: 1rem;
    margin-bottom: 4px;
}

.about-highlights span {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stat-card {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    transition: all var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px var(--shadow-lg);
    border-color: var(--accent);
}

.stat-icon {
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 12px;
}

.stat-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.stat-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* --- Services Section --- */
.services {
    padding: 100px 0;
    background: var(--bg-alt);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    transition: all var(--transition);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px var(--shadow-lg);
    border-color: var(--accent);
}

.service-icon {
    color: var(--accent);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}

.service-card p {
    color: var(--text-light);
    font-size: 0.92rem;
    line-height: 1.7;
}

/* --- Industries Section --- */
.industries {
    padding: 100px 0;
}

.industries-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
}

.industry-tag {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 12px 28px;
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 500;
    transition: all var(--transition);
}

.industry-tag:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(46, 134, 222, 0.25);
}

/* --- Contact Section --- */
.contact {
    padding: 100px 0;
    background: var(--bg-alt);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-item {
    margin-bottom: 32px;
}

.contact-item h3 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.contact-item p {
    color: var(--text);
    font-size: 1rem;
    line-height: 1.8;
}

.contact-item a {
    color: var(--accent);
    font-weight: 500;
}

.contact-map {
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-placeholder {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    text-align: center;
    width: 100%;
}

.map-pin {
    color: var(--accent);
    margin-bottom: 16px;
}

.map-placeholder p {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.map-placeholder span {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* --- Footer --- */
.footer {
    background: var(--bg-dark);
    padding: 60px 0 0;
    color: rgba(255, 255, 255, 0.7);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand p {
    margin-top: 16px;
    font-size: 0.9rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.5);
    max-width: 320px;
}

.footer .logo {
    color: #fff;
}

.footer .logo span {
    color: var(--accent-light);
}

.footer h4 {
    color: #fff;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    transition: color var(--transition);
}

.footer-links a:hover {
    color: #fff;
}

.footer-contact p {
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.5);
}

.footer-contact a:hover {
    color: #fff;
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.35);
}

/* --- Page Hero (Legal Pages) --- */
.page-hero {
    background: linear-gradient(135deg, var(--primary) 0%, #1a3d5c 100%);
    padding: 140px 0 60px;
    text-align: center;
}

.page-hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 8px;
}

.page-hero p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
}

/* --- Legal Content --- */
.legal-content {
    padding: 80px 0;
}

.legal-body {
    max-width: 800px;
    margin: 0 auto;
}

.legal-body h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
    margin-top: 48px;
    margin-bottom: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.legal-body h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.legal-body h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-light);
    margin-top: 28px;
    margin-bottom: 12px;
}

.legal-body p {
    color: var(--text-light);
    margin-bottom: 16px;
    font-size: 0.98rem;
    line-height: 1.8;
}

.legal-body ul {
    margin: 12px 0 20px 24px;
    list-style: disc;
}

.legal-body li {
    color: var(--text-light);
    margin-bottom: 8px;
    font-size: 0.95rem;
    line-height: 1.7;
}

.legal-contact {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-top: 24px;
}

.legal-contact p {
    margin-bottom: 4px;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 0;
        box-shadow: -10px 0 40px var(--shadow-lg);
        transition: right var(--transition);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        color: var(--text) !important;
        padding: 14px 0;
        font-size: 1rem;
        border-bottom: 1px solid var(--border);
    }

    .nav-links a::after {
        display: none;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero {
        padding: 140px 0 80px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .page-hero {
        padding: 120px 0 40px;
    }

    .page-hero h1 {
        font-size: 2rem;
    }

    .legal-content {
        padding: 48px 0;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        text-align: center;
    }

    .industries-grid {
        gap: 10px;
    }

    .industry-tag {
        padding: 10px 20px;
        font-size: 0.85rem;
    }
}