/* ============================================
   TRUSTGOLD Services Nigeria Limited
   Website Stylesheet
   ============================================ */

:root {
    --gold: #C9A227;
    --gold-light: #E5C158;
    --gold-dark: #A08020;
    --navy: #0A1628;
    --navy-light: #111D2E;
    --navy-lighter: #1A2744;
    --white: #FFFFFF;
    --off-white: #F5F5F0;
    --gray: #6B7280;
    --gray-light: #9CA3AF;
    --gray-dark: #374151;
    --text-dark: #1F2937;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-dark);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    padding: 0.875rem 0;
    box-shadow: 0 4px 30px rgba(0,0,0,0.15);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 900;
    text-decoration: none;
    letter-spacing: -0.02em;
}

.logo-gold {
    color: var(--gold);
}

.logo-white {
    color: var(--white);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--gold);
}

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

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

.nav-cta {
    background: var(--gold);
    color: var(--navy) !important;
    padding: 0.625rem 1.5rem;
    border-radius: 2px;
    font-weight: 600;
}

.nav-cta:hover {
    background: var(--gold-light);
}

.nav-cta::after {
    display: none;
}

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

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    animation: slowZoom 20s ease-in-out infinite alternate;
}

@keyframes slowZoom {
    from { transform: scale(1); }
    to { transform: scale(1.08); }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,22,40,0.88) 0%, rgba(10,22,40,0.65) 50%, rgba(10,22,40,0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

.hero-tagline {
    color: var(--gold);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.3s;
}

.hero-title {
    color: var(--white);
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.5s;
}

.gold-text {
    color: var(--gold);
}

.hero-subtitle {
    color: rgba(255,255,255,0.75);
    font-size: 1.125rem;
    max-width: 600px;
    line-height: 1.7;
    margin-bottom: 2.5rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.7s;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.9s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-decoration: none;
    border-radius: 2px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: var(--gold);
    color: var(--navy);
}

.btn-primary:hover {
    background: var(--gold-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(201, 162, 39, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 1.5px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
    border-color: var(--gold);
    color: var(--gold);
}

.btn-full {
    width: 100%;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255,255,255,0.5);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    z-index: 2;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--gold), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ============================================
   STATS SECTION
   ============================================ */
.stats-section {
    background: var(--navy);
    padding: 5rem 0;
    position: relative;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
}

.stat-number {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 900;
    color: var(--gold);
    line-height: 1;
}

.stat-suffix {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gold);
}

.stat-label {
    color: rgba(255,255,255,0.6);
    font-size: 0.875rem;
    margin-top: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   SECTION UTILITIES
   ============================================ */
.section-tag {
    color: var(--gold);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--navy);
}

.section-header {
    max-width: 700px;
    margin-bottom: 4rem;
}

.section-header.light .section-title {
    color: var(--white);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
    padding: 8rem 0;
    background: var(--off-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.about-text {
    color: var(--gray-dark);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-size: 1.05rem;
}

.about-values {
    margin-top: 2.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.value-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.value-icon {
    color: var(--gold);
    font-size: 1.25rem;
    line-height: 1;
    margin-top: 2px;
}

.value-item h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.25rem;
}

.value-item p {
    font-size: 0.875rem;
    color: var(--gray);
    line-height: 1.5;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: 550px;
    object-fit: cover;
    border-radius: 4px;
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    left: -20px;
    background: var(--gold);
    color: var(--navy);
    padding: 1.5rem 2rem;
    border-radius: 4px;
    text-align: center;
}

.exp-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 900;
    line-height: 1;
}

.exp-text {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   VISION & MISSION
   ============================================ */
.vision-mission {
    padding: 6rem 0;
    background: var(--white);
}

.vm-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.vm-card {
    padding: 3rem;
    background: var(--off-white);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.vm-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
}

.vm-number {
    position: absolute;
    top: 1.5rem;
    right: 2rem;
    font-size: 4rem;
    font-weight: 900;
    color: rgba(201, 162, 39, 0.12);
    line-height: 1;
}

.vm-card h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--navy);
    margin-bottom: 1rem;
}

.vm-card p {
    color: var(--gray-dark);
    line-height: 1.7;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services-section {
    padding: 8rem 0;
    background: var(--off-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    background: var(--white);
    border-radius: 4px;
    overflow: hidden;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px rgba(0,0,0,0.1);
}

.service-image {
    height: 220px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.service-card:hover .service-image img {
    transform: scale(1.08);
}

.service-content {
    padding: 1.75rem;
}

.service-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gold);
    margin-bottom: 0.75rem;
}

.service-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.service-content p {
    font-size: 0.9375rem;
    color: var(--gray);
    line-height: 1.6;
}

/* ============================================
   EQUIPMENT SECTION
   ============================================ */
.equipment-section {
    padding: 8rem 0;
    background: var(--navy);
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.equipment-item {
    padding: 2rem;
    background: var(--navy-lighter);
    border-radius: 4px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: var(--transition);
}

.equipment-item:hover {
    border-color: var(--gold);
    transform: translateY(-4px);
}

.equipment-icon {
    font-size: 1.75rem;
    color: var(--gold);
    margin-bottom: 1rem;
}

.equipment-item h4 {
    color: var(--white);
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.equipment-item p {
    color: rgba(255,255,255,0.55);
    font-size: 0.9rem;
    line-height: 1.6;
}

.equipment-note {
    text-align: center;
    padding: 2rem;
    background: rgba(201, 162, 39, 0.08);
    border-radius: 4px;
    border: 1px solid rgba(201, 162, 39, 0.15);
}

.equipment-note p {
    color: rgba(255,255,255,0.7);
    font-size: 1rem;
    line-height: 1.7;
}

.equipment-note strong {
    color: var(--gold);
}

/* ============================================
   TRACK RECORD
   ============================================ */
.track-section {
    padding: 8rem 0;
    background: var(--white);
}

.track-text {
    font-size: 1.125rem;
    color: var(--gray-dark);
    line-height: 1.8;
    max-width: 900px;
    margin-bottom: 2.5rem;
}

.track-text strong {
    color: var(--navy);
}

.track-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.track-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    color: var(--navy);
}

.track-check {
    color: var(--gold);
    font-weight: 900;
    font-size: 1.25rem;
}

/* ============================================
   CERTIFICATIONS
   ============================================ */
.cert-section {
    padding: 8rem 0;
    background: var(--navy-light);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.cert-card {
    padding: 2rem 1.5rem;
    background: var(--navy-lighter);
    border-radius: 4px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.05);
}

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

.cert-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cert-card h4 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.cert-card p {
    color: rgba(255,255,255,0.5);
    font-size: 0.8125rem;
    line-height: 1.5;
}

/* ============================================
   FACILITY SECTION
   ============================================ */
.facility-section {
    padding: 8rem 0;
    background: var(--off-white);
}

.facility-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 5rem;
    align-items: center;
}

.facility-text {
    color: var(--gray-dark);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.facility-list {
    list-style: none;
    margin-top: 1.5rem;
}

.facility-list li {
    padding: 0.625rem 0;
    padding-left: 1.75rem;
    position: relative;
    color: var(--gray-dark);
    font-weight: 500;
}

.facility-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--gold);
    font-weight: 700;
}

.facility-stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.f-stat {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 4px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.06);
}

.f-number {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--gold);
    line-height: 1;
}

.f-unit {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--navy);
    margin-left: 0.25rem;
}

.f-label {
    display: block;
    margin-top: 0.5rem;
    color: var(--gray);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-section {
    padding: 8rem 0;
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: start;
}

.contact-text {
    color: var(--gray-dark);
    line-height: 1.8;
    margin-bottom: 2.5rem;
    font-size: 1.05rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.contact-item {
    padding-left: 1.5rem;
    border-left: 3px solid var(--gold);
}

.contact-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gold);
    margin-bottom: 0.375rem;
}

.contact-item p {
    color: var(--gray-dark);
    font-size: 0.95rem;
    line-height: 1.6;
}

.contact-form-wrapper {
    background: var(--off-white);
    padding: 2.5rem;
    border-radius: 4px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid #E5E7EB;
    border-radius: 3px;
    font-family: inherit;
    font-size: 0.9375rem;
    color: var(--text-dark);
    background: var(--white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--gold);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--navy);
    padding: 5rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 900;
    text-decoration: none;
    display: inline-block;
    margin-bottom: 1.25rem;
}

.footer-brand p {
    color: rgba(255,255,255,0.55);
    font-size: 0.9375rem;
    line-height: 1.7;
    max-width: 300px;
}

.footer-links h4 {
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}

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

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

.footer-links a {
    color: rgba(255,255,255,0.55);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--gold);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: rgba(255,255,255,0.4);
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: 1rem;
    align-items: center;
    color: rgba(255,255,255,0.4);
    font-size: 0.8125rem;
}

/* ============================================
   ANIMATIONS
   ============================================ */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos-delay="50"] { transition-delay: 50ms; }
[data-aos-delay="100"] { transition-delay: 100ms; }
[data-aos-delay="150"] { transition-delay: 150ms; }
[data-aos-delay="200"] { transition-delay: 200ms; }
[data-aos-delay="250"] { transition-delay: 250ms; }
[data-aos-delay="300"] { transition-delay: 300ms; }
[data-aos-delay="350"] { transition-delay: 350ms; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .about-grid,
    .facility-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-image img {
        height: 400px;
    }
    
    .experience-badge {
        left: 20px;
    }
    
    .services-grid,
    .equipment-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .track-features {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background: var(--navy);
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        padding: 2rem;
        transition: var(--transition);
        gap: 1.5rem;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        font-size: 1.125rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .services-grid,
    .equipment-grid,
    .cert-grid,
    .stats-grid,
    .track-features,
    .vm-grid,
    .about-values,
    .form-row,
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .facility-stats {
        flex-direction: row;
    }
    
    .f-stat {
        flex: 1;
    }
}

@media (max-width: 480px) {
    .facility-stats {
        flex-direction: column;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}