/* ============================================
   DevNova - Development Company Website
   Custom CSS (Metronic-inspired Landing Style)
   ============================================ */

:root {
    --primary: #0066FF;
    --primary-light: rgba(0, 102, 255, 0.15);
    --success: #20aa3e;
    --success-light: #e8fff3;
    --dark-bg: #101926;
    --dark-bg-alt: #0B121E;
    --dark-border: rgba(255,255,255,0.08);
    --gradient-start: #00D2FF;
    --gradient-end: #0066FF;
    --cta-start: #0066FF;
    --cta-end: #00D2FF;
    --gray-100: #f9f9f9;
    --gray-200: #f1f1f2;
    --gray-300: #e1e3ea;
    --gray-400: #b5b5c3;
    --gray-500: #a1a5b7;
    --gray-600: #7e8299;
    --gray-700: #5e6278;
    --gray-800: #3f4254;
    --gray-900: #181c32;
    --body-bg: #ffffff;
    --text-dark: #0B121E;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.premium-grain {
    position: relative;
}
.premium-grain::before {
    content: "";
    position: absolute; inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 1;
}

.pixel-pattern {
    background-image: 
        linear-gradient(rgba(0, 102, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 102, 255, 0.04) 1px, transparent 1px);
    background-size: 30px 30px;
}

.pixel-pattern-dark {
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
}

.glass {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ---- Header ---- */
.landing-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 20px 0;
    transition: var(--transition);
}
.landing-header.scrolled {
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(0,0,0,0.08);
    padding: 12px 0;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo img { height: 40px; transition: var(--transition); }
.logo-text {
    font-size: 1.5rem; font-weight: 700; color: #fff;
    letter-spacing: -0.5px; transition: var(--transition);
}
.scrolled .logo-text { color: var(--text-dark); }

.nav-menu { display: flex; align-items: center; gap: 8px; list-style: none; }
.nav-menu a {
    padding: 8px 16px; border-radius: 8px; font-size: 0.95rem;
    font-weight: 500; color: rgba(255,255,255,0.8); transition: var(--transition);
}
.nav-menu a:hover, .nav-menu a.active { color: #fff; background: rgba(255,255,255,0.1); }
.scrolled .nav-menu a { color: var(--gray-600); }
.scrolled .nav-menu a:hover, .scrolled .nav-menu a.active {
    color: var(--primary); background: var(--primary-light);
}

.header-cta .btn-success { background: var(--success); border: none; color: #fff; }
.header-cta .btn-success:hover { background: #1a9234; transform: translateY(-1px); }

.mobile-toggle {
    display: none; background: none; border: none; cursor: pointer;
    color: #fff; font-size: 1.5rem;
}
.scrolled .mobile-toggle { color: var(--text-dark); }

/* ---- Buttons ---- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 28px; border-radius: 8px; font-weight: 600;
    font-size: 0.95rem; border: none; cursor: pointer;
    transition: var(--transition); text-decoration: none;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: #0085d1; transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,158,247,0.3); }
.btn-success { background: var(--success); color: #fff; }
.btn-outline-white { background: transparent; border: 2px solid #fff; color: #fff; }
.btn-outline-white:hover { background: #fff; color: var(--text-dark); }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }

/* ---- Hero Section ---- */
.hero-section {
    position: relative; min-height: 100vh;
    background: var(--dark-bg-alt);
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    opacity: 0.4;
}
.hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(15,25,35,0.7) 0%, rgba(15,25,35,0.95) 100%);
}
.hero-content { position: relative; z-index: 2; text-align: center; padding: 140px 20px 80px; }
.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800;
    color: #fff; line-height: 1.2; margin-bottom: 24px;
}
.hero-gradient {
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle { font-size: 1.15rem; color: rgba(255,255,255,0.65); margin-bottom: 40px; max-width: 600px; margin-inline: auto; }
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Client logos */
.client-logos {
    display: flex; flex-wrap: wrap; justify-content: center;
    gap: 32px; margin-top: 60px; padding: 0 20px;
}
.client-logo {
    opacity: 0.5; transition: var(--transition); font-size: 1.1rem;
    font-weight: 600; color: rgba(255,255,255,0.5); letter-spacing: 1px;
    text-transform: uppercase; padding: 8px 16px;
    border: 1px solid rgba(255,255,255,0.1); border-radius: 8px;
}
.client-logo:hover { opacity: 1; border-color: rgba(255,255,255,0.3); }

/* ---- SVG Curve Dividers ---- */
.curve-divider { width: 100%; overflow: hidden; line-height: 0; }
.curve-divider svg { width: 100%; height: 48px; display: block; }
.curve-divider.dark svg { color: var(--dark-bg); }
.curve-divider.dark-bottom svg { color: var(--dark-bg); }

/* ---- Section Styles ---- */
.section-light { padding: 80px 0; background: var(--body-bg); }
.section-dark { padding: 80px 0; background: var(--dark-bg); }
.section-heading { text-align: center; margin-bottom: 60px; }
.section-heading h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 800; margin-bottom: 16px;
}
.section-heading .subtitle { font-size: 1.05rem; font-weight: 500; max-width: 550px; margin: 0 auto; }
.text-dark-heading { color: var(--text-dark); }
.text-white-heading { color: #fff; }
.text-muted-sub { color: var(--gray-500); }
.text-muted-dark { color: var(--gray-600); }

/* ---- Services / How It Works ---- */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.service-card {
    text-align: center; padding: 40px 24px;
    border-radius: 16px; transition: var(--transition);
    background: var(--body-bg);
}
.service-card:hover { transform: translateY(-8px); box-shadow: 0 20px 60px rgba(0,0,0,0.08); }
.service-icon {
    width: 80px; height: 80px; border-radius: 16px; margin: 0 auto 24px;
    display: flex; align-items: center; justify-content: center;
    font-size: 2rem; color: #fff;
}
.service-icon.icon-1 { background: linear-gradient(135deg, #009ef7, #0085d1); }
.service-icon.icon-2 { background: linear-gradient(135deg, #20aa3e, #03a588); }
.service-icon.icon-3 { background: linear-gradient(135deg, #f6c000, #e5a800); }
.service-icon.icon-4 { background: linear-gradient(135deg, #7239ea, #5a2dd0); }
.service-icon.icon-5 { background: linear-gradient(135deg, #f1416c, #d9214e); }
.service-icon.icon-6 { background: linear-gradient(135deg, #03a588, #009ef7); }
.service-step {
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px; border-radius: 50%; font-weight: 700;
    font-size: 0.9rem; margin-bottom: 16px;
    background: var(--success-light); color: var(--success);
}
.service-card h3 { font-size: 1.2rem; font-weight: 700; color: var(--text-dark); margin-bottom: 12px; }
.service-card p { font-size: 0.95rem; color: var(--gray-500); line-height: 1.7; }

/* ---- Stats Section ---- */
.stats-grid {
    display: flex; flex-wrap: wrap; justify-content: center; gap: 40px;
}
.stat-item {
    text-align: center; padding: 40px; position: relative;
    min-width: 200px;
}
.stat-item::before {
    content: ''; position: absolute; inset: 0;
    background: rgba(255,255,255,0.03); border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.06);
}
.stat-icon { font-size: 2.5rem; margin-bottom: 16px; opacity: 0.9; }
.stat-value { font-size: 2.8rem; font-weight: 800; color: #fff; line-height: 1; }
.stat-label { font-size: 0.9rem; font-weight: 500; color: var(--gray-600); margin-top: 8px; }

.quote-block {
    text-align: center; margin-top: 60px; max-width: 700px; margin-inline: auto;
}
.quote-text { font-size: 1.2rem; font-weight: 500; color: var(--gray-600); font-style: italic; }
.quote-author { margin-top: 16px; }
.quote-author a { color: var(--primary); font-weight: 700; }
.quote-author span { color: var(--gray-600); }

/* ---- Team Section ---- */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
.team-card { text-align: center; }
.team-photo {
    width: 180px; height: 180px; margin: 0 auto 20px; border-radius: 50%;
    overflow: hidden; border: 4px solid var(--gray-200);
    transition: var(--transition);
}
.team-photo img { width: 100%; height: 100%; object-fit: cover; }
.team-card:hover .team-photo { border-color: var(--primary); transform: scale(1.05); }
.team-card h4 { font-size: 1.1rem; font-weight: 700; color: var(--text-dark); margin-bottom: 4px; }
.team-card .role { font-size: 0.9rem; color: var(--gray-500); font-weight: 500; }

/* ---- Portfolio Section ---- */
.portfolio-card {
    background: var(--body-bg); border-radius: 20px; padding: 48px;
    box-shadow: 0 0 40px rgba(68,81,96,0.08);
}
.portfolio-tabs {
    display: flex; justify-content: center; gap: 8px;
    margin-bottom: 40px; flex-wrap: wrap;
}
.portfolio-tabs button {
    background: none; border: none; padding: 10px 24px; border-radius: 8px;
    font-size: 0.95rem; font-weight: 600; color: var(--gray-500);
    cursor: pointer; transition: var(--transition);
}
.portfolio-tabs button.active,
.portfolio-tabs button:hover { color: var(--primary); background: var(--primary-light); }

.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.portfolio-item {
    position: relative; border-radius: 12px; overflow: hidden;
    aspect-ratio: 4/3; cursor: pointer;
}
.portfolio-item img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.5s ease;
}
.portfolio-overlay {
    position: absolute; inset: 0;
    background: rgba(0,0,0,0); display: flex;
    align-items: center; justify-content: center;
    transition: var(--transition);
}
.portfolio-overlay i { color: #fff; font-size: 2rem; opacity: 0; transform: scale(0.5); transition: var(--transition); }
.portfolio-item:hover img { transform: scale(1.1); }
.portfolio-item:hover .portfolio-overlay { background: rgba(0,0,0,0.35); }
.portfolio-item:hover .portfolio-overlay i { opacity: 1; transform: scale(1); }
.portfolio-item.large { grid-column: span 1; grid-row: span 2; aspect-ratio: auto; }

/* ---- Pricing Section ---- */
.pricing-toggle {
    display: inline-flex; gap: 4px; padding: 4px;
    border: 1px dashed rgba(255,255,255,0.2); border-radius: 8px;
    margin-bottom: 48px;
}
.pricing-toggle button {
    padding: 10px 24px; border-radius: 6px; border: none;
    font-weight: 600; font-size: 0.9rem; cursor: pointer;
    background: transparent; color: var(--gray-600); transition: var(--transition);
}
.pricing-toggle button.active { background: var(--success); color: #fff; }

.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: center; }
.pricing-card {
    background: var(--body-bg); border-radius: 16px; padding: 40px 32px;
    text-align: center; transition: var(--transition);
}
.pricing-card.featured {
    background: var(--primary); color: #fff; padding: 56px 32px;
    transform: scale(1.05); box-shadow: 0 20px 60px rgba(0,158,247,0.3);
}
.pricing-card h3 { font-size: 1.4rem; font-weight: 800; margin-bottom: 8px; }
.pricing-card .price-desc { font-size: 0.9rem; opacity: 0.7; margin-bottom: 20px; }
.price-amount { margin-bottom: 32px; }
.price-amount .currency { font-size: 1rem; vertical-align: super; }
.price-amount .value { font-size: 3rem; font-weight: 800; }
.price-amount .period { font-size: 0.85rem; opacity: 0.6; }
.pricing-features { list-style: none; text-align: left; margin-bottom: 32px; }
.pricing-features li {
    display: flex; align-items: center; gap: 12px;
    padding: 8px 0; font-size: 0.9rem; font-weight: 500;
}
.pricing-features li .check { color: var(--success); font-weight: 700; }
.pricing-features li .cross { opacity: 0.3; }
.pricing-card.featured .pricing-features li { color: rgba(255,255,255,0.8); }
.pricing-card.featured .pricing-features li .check { color: #fff; }

/* ---- Testimonials ---- */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-bottom: 60px; }
.testimonial-card { padding: 0 16px; }
.stars { display: flex; gap: 4px; margin-bottom: 20px; color: #f6c000; font-size: 1.1rem; }
.testimonial-card h4 { font-size: 1.15rem; font-weight: 700; color: var(--text-dark); margin-bottom: 12px; line-height: 1.4; }
.testimonial-card p { font-size: 0.95rem; color: var(--gray-500); line-height: 1.7; margin-bottom: 24px; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.testimonial-avatar {
    width: 48px; height: 48px; border-radius: 50%; overflow: hidden;
    background: var(--gray-200);
}
.testimonial-avatar img { width: 100%; height: 100%; object-fit: cover; }
.author-name { font-size: 0.95rem; font-weight: 700; color: var(--text-dark); }
.author-role { font-size: 0.8rem; color: var(--gray-500); }

/* ---- CTA Banner ---- */
.cta-banner {
    background: linear-gradient(90deg, var(--cta-start), var(--cta-end));
    border-radius: 16px; padding: 40px 48px;
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 24px;
    box-shadow: 0 20px 60px rgba(32,170,62,0.2);
}
.cta-banner h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); font-weight: 800; color: #fff; }
.cta-banner h3 span { font-weight: 400; }
.cta-banner p { font-size: 1rem; color: rgba(255,255,255,0.75); margin-top: 4px; }

/* ---- Footer ---- */
.footer-section { background: var(--dark-bg); padding-top: 0; }
.footer-content { padding: 80px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.footer-info-block {
    border: 1px solid var(--dark-border); border-radius: 12px;
    padding: 28px; margin-bottom: 20px;
}
.footer-info-block h3 { color: #fff; font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.footer-info-block p { color: var(--gray-600); font-size: 0.95rem; }
.footer-info-block a { color: rgba(255,255,255,0.5); }
.footer-info-block a:hover { color: var(--primary); }

.footer-links { display: flex; gap: 60px; }
.footer-link-group h4 { color: var(--gray-400); font-size: 0.95rem; font-weight: 700; margin-bottom: 20px; }
.footer-link-group a {
    display: block; color: rgba(255,255,255,0.5); font-size: 0.9rem;
    font-weight: 500; margin-bottom: 14px;
}
.footer-link-group a:hover { color: var(--primary); }

.footer-bottom {
    border-top: 1px solid var(--dark-border); padding: 24px 0;
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 16px;
}
.footer-bottom p { color: var(--gray-600); font-size: 0.85rem; }
.social-links { display: flex; gap: 12px; }
.social-link {
    width: 36px; height: 36px; border-radius: 8px; display: flex;
    align-items: center; justify-content: center;
    background: rgba(255,255,255,0.05); color: var(--gray-600);
    transition: var(--transition);
}
.social-link:hover { background: var(--primary); color: #fff; }

/* ---- Animations ---- */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-on-scroll { opacity: 0; transform: translateY(30px); transition: all 0.6s ease; }
.animate-on-scroll.visible { opacity: 1; transform: translateY(0); }

/* ---- Responsive ---- */

/* Mobile overlay backdrop */
.nav-overlay {
    display: none; position: fixed; inset: 0; z-index: 999;
    background: rgba(0,0,0,0.5);
    opacity: 0; transition: opacity 0.3s ease;
}
.nav-overlay.active { display: block; opacity: 1; }

@media (max-width: 992px) {
    .nav-menu {
        display: flex; flex-direction: column; position: fixed;
        top: 0; left: -280px; bottom: 0; width: 280px; z-index: 1000;
        background: #fff; padding: 24px;
        box-shadow: 4px 0 30px rgba(0,0,0,0.15);
        transition: left 0.3s ease;
        overflow-y: auto;
    }
    .nav-menu.open { left: 0; }
    .nav-menu a {
        color: var(--gray-700); padding: 14px 16px; border-radius: 8px;
        font-size: 1rem; font-weight: 500; display: block;
    }
    .nav-menu a:hover, .nav-menu a.active {
        color: var(--primary); background: var(--primary-light);
    }
    /* Close button inside sidebar */
    .nav-close {
        display: flex; align-items: center; justify-content: space-between;
        margin-bottom: 24px; padding-bottom: 20px;
        border-bottom: 1px solid var(--gray-200);
    }
    .nav-close .sidebar-brand {
        font-size: 1.3rem; font-weight: 700; color: var(--text-dark);
    }
    .nav-close button {
        background: none; border: none; cursor: pointer;
        font-size: 1.3rem; color: var(--gray-500); padding: 4px 8px;
        border-radius: 6px; transition: var(--transition);
    }
    .nav-close button:hover { background: var(--gray-100); color: var(--gray-800); }

    .mobile-toggle { display: block; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .team-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .pricing-card.featured { transform: none; }
    .testimonials-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto 40px; }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; }
    .cta-banner { flex-direction: column; text-align: center; }
}
/* Hide close button on desktop */
.nav-close { display: none; }
@media (max-width: 768px) {
    .services-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .team-grid { grid-template-columns: 1fr; max-width: 280px; margin: 0 auto; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .footer-links { flex-direction: column; gap: 32px; }
    .hero-title { font-size: 2rem; }
    .portfolio-card { padding: 24px; }
}