/* ===== CSS Variables ===== */
:root {
    --primary: #1a365d;
    --primary-dark: #0f2744;
    --primary-light: #2c5282;
    --accent: #e85d04;
    --accent-hover: #d35400;
    --text: #2d3748;
    --text-light: #4a5568;
    --text-muted: #718096;
    --bg: #ffffff;
    --bg-alt: #f7fafc;
    --bg-dark: #1a365d;
    --border: #e2e8f0;
    --success: #38a169;
    --error: #e53e3e;
    --radius: 8px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text);
    line-height: 1.6;
    background: var(--bg);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3.5rem;
}

.section-header h2 {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.section-header p {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border-color: #fff;
}

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

.btn-full {
    width: 100%;
}

.btn-nav {
    background: var(--accent) !important;
    color: #fff !important;
    padding: 0.5rem 1.25rem !important;
    border-radius: var(--radius);
}

.btn-nav:hover {
    background: var(--accent-hover) !important;
}

/* ===== Header / Nav ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100px;
}

.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo-img {
    height: 90px;
    width: auto;
    padding: 4px 8px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 3px 14px rgba(26, 54, 93, 0.15), 0 0 0 1px rgba(26, 54, 93, 0.08);
    transition: var(--transition);
}

.logo-img:hover {
    box-shadow: 0 5px 20px rgba(26, 54, 93, 0.2), 0 0 0 1px rgba(232, 93, 4, 0.3);
    transform: translateY(-1px);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-menu a {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text);
}

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

.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: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(232, 93, 4, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    padding-top: 100px;
    max-width: 700px;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.15;
    margin-bottom: 1.25rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

/* ===== Services ===== */
.services {
    background: var(--bg-alt);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.75rem;
}

.service-card {
    background: #fff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(26, 54, 93, 0.08);
    border-radius: 12px;
    color: var(--primary);
    margin-bottom: 1.25rem;
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.service-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ===== About ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: center;
}

.about-content h2 {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
}

.about-content .lead {
    font-size: 1.15rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 1rem;
}

.about-content p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.about-list {
    margin-top: 1.5rem;
}

.about-list li {
    position: relative;
    padding-left: 1.75rem;
    margin-bottom: 0.6rem;
    color: var(--text);
    font-weight: 500;
}

.about-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.45rem;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
}

.about-card {
    background: var(--primary);
    color: #fff;
    padding: 2.5rem;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent);
}

.stat-label {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* ===== Gallery ===== */
.gallery {
    background: var(--bg-alt);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.gallery-item {
    position: relative;
    aspect-ratio: 4/3;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem 1.25rem;
    background: linear-gradient(transparent, rgba(15, 39, 68, 0.85));
    color: #fff;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition);
}

.gallery-item:hover .gallery-caption {
    opacity: 1;
    transform: translateY(0);
}

/* ===== CTA ===== */
.cta {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    padding: 4rem 0;
    text-align: center;
    color: #fff;
}

.cta h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.cta p {
    opacity: 0.9;
    margin-bottom: 1.75rem;
    font-size: 1.1rem;
}

/* ===== Contact ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 3rem;
}

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

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

.info-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: rgba(26, 54, 93, 0.08);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.info-item h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.info-item p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.info-item a:hover {
    color: var(--accent);
}

.contact-form-wrapper {
    background: var(--bg-alt);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border);
}

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

.contact-form label {
    display: block;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text);
    margin-bottom: 0.4rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: #fff;
    color: var(--text);
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

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

.form-message {
    margin-top: 1.25rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 500;
    display: none;
    line-height: 1.45;
}

.form-message.success {
    display: block !important;
    background: #f0fff4;
    color: #276749;
    border: 2px solid #68d391;
}

.form-message.error {
    display: block !important;
    background: #fff5f5;
    color: #c53030;
    border: 2px solid #fc8181;
}

/* ===== Footer ===== */
.footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.85);
    padding: 3.5rem 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    height: 80px;
    width: auto;
    margin-bottom: 1rem;
    background: #fff;
    padding: 8px 14px;
    border-radius: 12px;
    box-shadow: 0 3px 14px rgba(0, 0, 0, 0.25);
}

.footer-brand p {
    font-size: 0.9rem;
    opacity: 0.8;
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: #fff;
    margin-bottom: 1rem;
    font-size: 1rem;
}

.footer-links a {
    display: block;
    padding: 0.3rem 0;
    font-size: 0.9rem;
    opacity: 0.8;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent);
}

.footer-contact p {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 0.5rem;
}

.footer-contact a:hover {
    color: var(--accent);
}

.footer-bottom {
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.7;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-card {
        flex-direction: row;
        justify-content: space-around;
        flex-wrap: wrap;
    }
}

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

    .nav-menu {
        position: fixed;
        top: 100px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 1.5rem;
        gap: 0;
        box-shadow: var(--shadow-lg);
        transform: translateY(-120%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .logo-img {
        height: 72px;
        padding: 3px 6px;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu li {
        width: 100%;
        text-align: center;
        border-bottom: 1px solid var(--border);
    }

    .nav-menu a {
        display: block;
        padding: 1rem;
    }

    .btn-nav {
        margin-top: 0.5rem;
        display: inline-block;
    }

    .hero {
        min-height: 85vh;
    }

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

    .hero-buttons .btn {
        width: 100%;
        text-align: center;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 3.5rem 0;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .about-card {
        flex-direction: column;
    }

    .logo-img {
        height: 58px;
        padding: 2px 5px;
    }

    .nav {
        height: 80px;
    }

    .nav-menu {
        top: 80px;
    }
}