/* ===== CSS Custom Properties ===== */
:root {
    --teal-50: #f0fdfa;
    --teal-100: #ccfbf1;
    --teal-200: #99f6e4;
    --teal-300: #5eead4;
    --teal-400: #2dd4bf;
    --teal-500: #14b8a6;
    --teal-600: #0d9488;
    --teal-700: #0f766e;
    --teal-800: #115e59;
    --teal-900: #134e4a;

    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --slate-950: #020617;

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

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

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.05);

    --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(--slate-800);
    background-color: #ffffff;
    -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;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all var(--transition);
    white-space: nowrap;
    text-align: center;
}

.btn-primary {
    background: var(--teal-600);
    color: #ffffff;
    border: 2px solid var(--teal-600);
}

.btn-primary:hover {
    background: var(--teal-700);
    border-color: var(--teal-700);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-light {
    background: transparent;
    color: #ffffff;
    border: 2px solid rgba(255,255,255,0.6);
}

.btn-outline-light:hover {
    background: rgba(255,255,255,0.1);
    border-color: #ffffff;
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1rem;
    border-radius: var(--radius-lg);
}

.btn-full {
    width: 100%;
    justify-content: center;
    padding: 16px 28px;
}

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

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

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--slate-900);
}

.logo-icon {
    color: var(--teal-600);
}

.logo-text {
    font-family: var(--font-heading);
    letter-spacing: -0.02em;
}

.logo-light {
    color: #ffffff;
}

/* ===== Navigation ===== */
.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--slate-600);
    transition: color var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--teal-600);
    transition: width var(--transition);
}

.nav-link:hover {
    color: var(--teal-600);
}

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

.nav-cta {
    padding: 10px 20px;
    font-size: 0.875rem;
}

.nav-close {
    display: none;
    position: absolute;
    top: 20px;
    right: 24px;
    color: var(--slate-600);
    padding: 4px;
}

.nav-close:hover {
    color: var(--slate-900);
}

.nav-toggle {
    display: none;
    color: var(--slate-700);
    padding: 4px;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--slate-900);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(13, 148, 136, 0.72) 100%);
}

.hero .container {
    position: relative;
    z-index: 1;
    padding-top: 72px;
    padding-bottom: 80px;
}

.hero-content {
    max-width: 720px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    color: var(--teal-200);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 24px;
    backdrop-filter: blur(4px);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.25rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    color: #ffffff;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: clamp(1.0625rem, 2vw, 1.25rem);
    color: var(--slate-200);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 560px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--slate-300);
    font-size: 0.9375rem;
    font-weight: 500;
}

.trust-item svg {
    color: var(--teal-400);
    flex-shrink: 0;
}

.scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255,255,255,0.5);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-8px); }
    60% { transform: translateX(-50%) translateY(-4px); }
}

/* ===== Section Styles ===== */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--teal-600);
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 700;
    color: var(--slate-900);
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--slate-500);
    line-height: 1.7;
}

/* ===== Services ===== */
.services {
    padding: 100px 0;
    background: var(--slate-50);
}

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

.service-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    border: 1px solid var(--slate-200);
    transition: all var(--transition);
}

.service-card:hover {
    border-color: var(--teal-200);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--teal-50);
    border: 1px solid var(--teal-100);
    border-radius: var(--radius-md);
    color: var(--teal-700);
    margin-bottom: 20px;
    transition: all var(--transition);
}

.service-card:hover .service-icon {
    background: var(--teal-600);
    border-color: var(--teal-600);
    color: #ffffff;
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 10px;
}

.service-card p {
    font-size: 0.9375rem;
    color: var(--slate-500);
    line-height: 1.7;
}

/* ===== About ===== */
.about {
    padding: 100px 0;
    background: #ffffff;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: 700px;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.about-stat {
    position: absolute;
    bottom: -24px;
    right: -24px;
    background: var(--teal-600);
    color: #ffffff;
    padding: 24px 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.about-stat .stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 4px;
}

.about-stat .stat-label {
    font-size: 0.8125rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    opacity: 0.85;
}

.about-content .section-tag {
    text-align: left;
}

.about-content .section-title {
    text-align: left;
}

.about-text {
    font-size: 1.0625rem;
    color: var(--slate-600);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--slate-700);
}

.about-feature svg {
    color: var(--teal-600);
    flex-shrink: 0;
}

/* ===== Why Us ===== */
.why-us {
    padding: 100px 0;
    background: var(--slate-900);
}

.why-us .section-tag {
    color: var(--teal-400);
}

.why-us .section-title {
    color: #ffffff;
}

.why-us .section-subtitle {
    color: var(--slate-400);
}

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

.why-card {
    background: var(--slate-800);
    border: 1px solid var(--slate-700);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: all var(--transition);
}

.why-card:hover {
    border-color: var(--teal-600);
    transform: translateY(-4px);
    box-shadow: 0 0 0 1px var(--teal-600);
}

.why-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--teal-600);
    line-height: 1;
    margin-bottom: 16px;
    opacity: 0.6;
}

.why-card h3 {
    font-family: var(--font-heading);
    font-size: 1.375rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 12px;
}

.why-card p {
    font-size: 0.9375rem;
    color: var(--slate-400);
    line-height: 1.7;
}

/* ===== CTA Banner ===== */
.cta-banner {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--teal-700) 0%, var(--teal-600) 50%, var(--teal-500) 100%);
}

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

.cta-content h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.cta-content p {
    font-size: 1.125rem;
    color: var(--teal-100);
    margin-bottom: 36px;
    line-height: 1.7;
}

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

/* ===== Testimonials ===== */
.testimonials {
    padding: 100px 0;
    background: var(--slate-50);
}

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

.testimonial-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    border: 1px solid var(--slate-200);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

.testimonial-card:hover {
    border-color: var(--teal-200);
    box-shadow: var(--shadow-lg);
}

.testimonial-quote {
    color: var(--teal-400);
    margin-bottom: 16px;
}

.testimonial-text {
    font-size: 0.9375rem;
    color: var(--slate-600);
    line-height: 1.8;
    flex: 1;
    margin-bottom: 24px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--teal-100);
    color: var(--teal-700);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
    flex-shrink: 0;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--slate-900);
}

.author-location {
    font-size: 0.8125rem;
    color: var(--slate-400);
}

/* ===== Contact ===== */
.contact {
    padding: 100px 0;
    background: #ffffff;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.contact-info .section-tag {
    text-align: left;
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: 16px;
}

.contact-desc {
    font-size: 1.0625rem;
    color: var(--slate-500);
    line-height: 1.7;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 32px;
}

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

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--teal-50);
    border: 1px solid var(--teal-100);
    border-radius: var(--radius-md);
    color: var(--teal-600);
    flex-shrink: 0;
}

.contact-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--slate-400);
    margin-bottom: 2px;
}

.contact-value {
    display: block;
    font-size: 1rem;
    font-weight: 500;
    color: var(--slate-800);
}

.contact-value a {
    color: var(--slate-800);
    transition: color var(--transition);
}

.contact-value a:hover {
    color: var(--teal-600);
}

.contact-map {
    overflow: hidden;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
}

.contact-form-wrapper {
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-xl);
    padding: 40px;
}

.contact-form-wrapper h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 8px;
}

.form-desc {
    font-size: 0.9375rem;
    color: var(--slate-500);
    margin-bottom: 28px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--slate-700);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--slate-300);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    color: var(--slate-800);
    background: #ffffff;
    transition: all var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--teal-500);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.12);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-success {
    display: none;
    text-align: center;
    padding: 40px 20px;
}

.form-success.show {
    display: block;
}

.form-success svg {
    color: var(--teal-600);
    margin-bottom: 16px;
}

.form-success h4 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 8px;
}

.form-success p {
    font-size: 0.9375rem;
    color: var(--slate-500);
    line-height: 1.7;
}

/* ===== Footer ===== */
.footer {
    background: var(--slate-950);
    color: var(--slate-400);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--slate-800);
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--slate-400);
    max-width: 280px;
}

.footer-col h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 20px;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col li {
    font-size: 0.9375rem;
}

.footer-col a {
    color: var(--slate-400);
    transition: color var(--transition);
}

.footer-col a:hover {
    color: var(--teal-400);
}

.footer-contact {
    gap: 12px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.875rem;
}

.footer-contact svg {
    color: var(--teal-500);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    font-size: 0.8125rem;
    color: var(--slate-500);
}

/* ===== Scroll Animations ===== */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .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;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .nav {
        position: fixed;
        top: 0;
        right: 0;
        width: 280px;
        height: 100vh;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 80px 32px 32px;
        gap: 20px;
        box-shadow: -8px 0 30px rgba(0,0,0,0.1);
        transform: translateX(100%);
        transition: transform var(--transition);
        z-index: 999;
    }

    .nav.open {
        transform: translateX(0);
    }

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

    .nav-cta {
        display: none;
    }

    .hero-title {
        font-size: clamp(1.75rem, 6vw, 2.5rem);
    }

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

    .hero-actions .btn {
        justify-content: center;
    }

    .hero-trust {
        gap: 16px;
    }

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

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

    .about-image img {
        height: 400px;
    }

    .about-stat {
        right: 16px;
        bottom: -16px;
    }

    .about-content .section-tag,
    .about-content .section-title {
        text-align: center;
    }

    .about-text {
        text-align: center;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

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

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

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

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

    .contact-info .section-tag,
    .contact-info .section-title {
        text-align: center;
    }

    .contact-desc {
        text-align: center;
    }

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

    .contact-form-wrapper {
        padding: 28px;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }

    .scroll-indicator {
        display: none;
    }
}

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

    .hero .container {
        padding-top: 64px;
        padding-bottom: 60px;
    }

    .services,
    .about,
    .why-us,
    .testimonials,
    .contact {
        padding: 64px 0;
    }

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

    .service-card {
        padding: 28px 24px;
    }

    .why-card {
        padding: 28px 24px;
    }

    .cta-banner {
        padding: 56px 0;
    }
}