/* ========================================
   CSS Custom Properties
   ======================================== */
:root {
    --color-midnight: #0f2540;
    --color-midnight-light: #1e3a5f;
    --color-midnight-dark: #0a1a2e;
    --color-mint: #10b981;
    --color-mint-light: #34d8b0;
    --color-mint-pale: #d1fae5;
    --color-cream: #f8faf9;
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --shadow-sm: 0 1px 2px rgba(15, 37, 64, 0.06);
    --shadow-md: 0 4px 16px rgba(15, 37, 64, 0.08);
    --shadow-lg: 0 8px 32px rgba(15, 37, 64, 0.12);
    --shadow-xl: 0 16px 48px rgba(15, 37, 64, 0.16);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-midnight);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
}

p {
    color: var(--color-gray-600);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-mint);
    color: var(--color-white);
    border-color: var(--color-mint);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--color-mint-light);
    border-color: var(--color-mint-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-midnight);
    border-color: var(--color-midnight);
}

.btn-outline:hover,
.btn-outline:focus {
    background-color: var(--color-midnight);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-small {
    padding: 10px 20px;
    font-size: 0.875rem;
}

.btn-full {
    width: 100%;
}

/* ========================================
   Section Tag
   ======================================== */
.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-mint);
    margin-bottom: 12px;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 60px;
}

.section-header h2 {
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.1rem;
}

/* ========================================
   Header
   ======================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-gray-200);
    transition: var(--transition);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--color-midnight);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-menu a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-gray-600);
    transition: var(--transition);
    position: relative;
}

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

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

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

.nav-menu .btn {
    margin-left: 8px;
}

/* ========================================
   Hero
   ======================================== */
.hero {
    padding-top: 72px;
    background-color: var(--color-midnight);
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding-top: 40px;
    padding-bottom: 40px;
}

.hero-content {
    color: var(--color-white);
}

.hero-content h1 {
    color: var(--color-white);
    margin-bottom: 24px;
}

.hero-sub {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 36px;
    line-height: 1.7;
}

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

.hero-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ========================================
   Stats
   ======================================== */
.stats {
    background-color: var(--color-cream);
    padding: 60px 0;
    border-top: 1px solid var(--color-gray-200);
    border-bottom: 1px solid var(--color-gray-200);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-mint);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-gray-500);
    font-weight: 500;
}

/* ========================================
   Services
   ======================================== */
.services {
    padding: 100px 0;
    background-color: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--color-mint);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-mint-pale);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    color: var(--color-mint);
}

.service-card h3 {
    margin-bottom: 12px;
    color: var(--color-midnight);
}

.service-card p {
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ========================================
   About
   ======================================== */
.about {
    padding: 100px 0;
    background-color: var(--color-cream);
}

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

.about-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-content h2 {
    margin-bottom: 24px;
}

.about-content > p {
    margin-bottom: 16px;
    font-size: 1.05rem;
}

.about-features {
    margin-top: 32px;
    display: grid;
    gap: 16px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-gray-700);
}

.feature-item svg {
    flex-shrink: 0;
}

/* ========================================
   Areas
   ======================================== */
.areas {
    padding: 100px 0;
    background-color: var(--color-white);
}

.areas-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.area-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-gray-200);
    transition: var(--transition);
    background-color: var(--color-white);
}

.area-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.area-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.area-info {
    padding: 24px;
}

.area-info h3 {
    margin-bottom: 8px;
    color: var(--color-midnight);
}

.area-info p {
    font-size: 0.9rem;
}

/* ========================================
   Testimonials
   ======================================== */
.testimonials {
    padding: 100px 0;
    background-color: var(--color-midnight);
}

.testimonials .section-header h2 {
    color: var(--color-white);
}

.testimonials .section-header p {
    color: rgba(255, 255, 255, 0.6);
}

.testimonials .section-tag {
    color: var(--color-mint-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background-color: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: var(--transition);
}

.testimonial-card:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}

.testimonial-quote {
    color: var(--color-mint-light);
    margin-bottom: 20px;
}

.testimonial-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.author-name {
    font-weight: 600;
    color: var(--color-white);
    font-size: 0.95rem;
}

.author-detail {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ========================================
   CTA
   ======================================== */
.cta {
    padding: 100px 0;
    background-color: var(--color-mint);
}

.cta-content {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.cta-content h2 {
    color: var(--color-white);
    margin-bottom: 20px;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.1rem;
    margin-bottom: 36px;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-actions .btn-primary {
    background-color: var(--color-midnight);
    border-color: var(--color-midnight);
    color: var(--color-white);
}

.cta-actions .btn-primary:hover,
.cta-actions .btn-primary:focus {
    background-color: var(--color-midnight-dark);
    border-color: var(--color-midnight-dark);
}

.cta-actions .btn-outline {
    border-color: var(--color-white);
    color: var(--color-white);
}

.cta-actions .btn-outline:hover,
.cta-actions .btn-outline:focus {
    background-color: var(--color-white);
    color: var(--color-midnight);
}

/* ========================================
   Contact
   ======================================== */
.contact {
    padding: 100px 0;
    background-color: var(--color-white);
}

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

.contact-info h2 {
    margin-bottom: 20px;
}

.contact-info > p {
    margin-bottom: 36px;
    font-size: 1.05rem;
}

.contact-details {
    display: grid;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-item svg {
    color: var(--color-mint);
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-item strong {
    display: block;
    color: var(--color-midnight);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.contact-item a {
    color: var(--color-gray-600);
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--color-mint);
}

.contact-item span {
    color: var(--color-gray-600);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ========================================
   Contact Form
   ======================================== */
.contact-form-wrapper {
    background-color: var(--color-cream);
    border-radius: var(--radius-xl);
    padding: 40px;
    border: 1px solid var(--color-gray-200);
}

.contact-form {
    display: grid;
    gap: 20px;
}

.form-group {
    display: grid;
    gap: 8px;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-midnight);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-gray-800);
    background-color: var(--color-white);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-mint);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-gray-400);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-success {
    text-align: center;
    padding: 40px 20px;
}

.form-success svg {
    margin: 0 auto 20px;
}

.form-success h3 {
    color: var(--color-mint);
    margin-bottom: 12px;
    font-family: var(--font-heading);
}

.form-success p {
    color: var(--color-gray-600);
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
    background-color: var(--color-midnight-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
    color: var(--color-white);
    margin-bottom: 16px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
}

.footer-links ul {
    display: grid;
    gap: 12px;
}

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

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

.footer-contact p {
    font-size: 0.9rem;
    line-height: 1.8;
}

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

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

.footer-bottom {
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.35);
}

/* ========================================
   Scroll Reveal (Progressive Enhancement)
   ======================================== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-image {
        max-width: 500px;
        margin: 0 auto;
    }

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

    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials-grid .testimonial-card:last-child {
        grid-column: span 2;
        max-width: 50%;
        margin: 0 auto;
    }

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

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

    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        align-items: stretch;
        padding: 24px;
        gap: 0;
        border-bottom: 1px solid var(--color-gray-200);
        box-shadow: var(--shadow-lg);
        transform: translateY(-120%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

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

    .nav-menu li {
        border-bottom: 1px solid var(--color-gray-100);
    }

    .nav-menu li:last-child {
        border-bottom: none;
        padding-top: 16px;
    }

    .nav-menu a {
        display: block;
        padding: 12px 0;
        font-size: 1rem;
    }

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

    .nav-menu .btn {
        margin-left: 0;
        text-align: center;
    }

    .hero {
        min-height: auto;
        padding-bottom: 60px;
    }

    .hero .container {
        padding-top: 20px;
    }

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

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

    .hero-actions .btn {
        width: 100%;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

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

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

    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }

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

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

    .testimonials-grid .testimonial-card:last-child {
        grid-column: span 1;
        max-width: 100%;
    }

    .cta-actions {
        flex-direction: column;
    }

    .cta-actions .btn {
        width: 100%;
    }

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

    .contact-form-wrapper {
        padding: 24px;
    }

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-content h1 {
        font-size: 1.75rem;
    }

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

    .stat-number {
        font-size: 2rem;
    }

    .section-header {
        margin-bottom: 40px;
    }
}