:root {
    --green-900: #1B4332;
    --green-800: #2D6A4F;
    --green-700: #40916C;
    --green-600: #52B788;
    --green-100: #D8F3DC;
    --green-50: #EFF7F1;
    --cream: #FAF9F6;
    --cream-dark: #F0EDE8;
    --stone-50: #FAFAF8;
    --stone-100: #F5F4F1;
    --stone-200: #E8E6E1;
    --stone-300: #D4D0CA;
    --stone-500: #78716C;
    --stone-600: #57534E;
    --stone-700: #44403C;
    --stone-800: #292524;
    --stone-900: #1C1917;
    --white: #FFFFFF;
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --shadow-sm: 0 1px 2px rgba(27, 67, 50, 0.06);
    --shadow-md: 0 4px 16px rgba(27, 67, 50, 0.08);
    --shadow-lg: 0 8px 32px rgba(27, 67, 50, 0.12);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::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: 1.65;
    color: var(--stone-800);
    background-color: var(--cream);
    -webkit-font-smoothing: antialiased;
}

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

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

ul {
    list-style: none;
}

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

.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    background: var(--green-900);
    color: var(--white);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    z-index: 1000;
    font-size: 14px;
}
.skip-link:focus {
    top: 16px;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(250, 249, 246, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--stone-200);
    transition: box-shadow var(--transition);
}

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

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 17px;
    color: var(--stone-900);
}

.logo-text {
    letter-spacing: -0.02em;
}

.logo-accent {
    color: var(--green-700);
}

.logo-icon {
    flex-shrink: 0;
}

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

.nav-menu a {
    font-size: 14px;
    font-weight: 500;
    color: var(--stone-600);
    transition: color var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--green-700);
    transition: width var(--transition);
}

.nav-menu a:hover {
    color: var(--green-800);
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--stone-700);
    position: relative;
    transition: background var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 22px;
    height: 2px;
    background: var(--stone-700);
    transition: transform var(--transition);
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

.nav-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    transform: rotate(-45deg);
    top: 0;
}

/* Hero */
.hero {
    padding-top: 72px;
    min-height: 100vh;
    min-height: 100dvh;
    background: var(--cream);
    position: relative;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    padding-top: 40px;
    padding-bottom: 80px;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 540px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--green-800);
    background: var(--green-50);
    border: 1px solid var(--green-100);
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 28px;
}

.badge-dot {
    width: 7px;
    height: 7px;
    background: var(--green-600);
    border-radius: 50%;
    flex-shrink: 0;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(40px, 5vw, 64px);
    font-weight: 700;
    line-height: 1.08;
    color: var(--stone-900);
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.text-accent {
    color: var(--green-800);
}

.hero-subtitle {
    font-size: 17px;
    line-height: 1.7;
    color: var(--stone-600);
    margin-bottom: 36px;
    max-width: 480px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 52px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 0;
}

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

.stat-number {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 700;
    color: var(--green-800);
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 13px;
    color: var(--stone-500);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--stone-200);
    margin: 0 24px;
    flex-shrink: 0;
}

.hero-image {
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

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

.hero-image-accent {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 120px;
    height: 120px;
    background: var(--green-100);
    border-radius: var(--radius-lg);
    z-index: -1;
}

.hero-image-badge {
    position: absolute;
    bottom: 24px;
    left: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--white);
    padding: 12px 18px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    font-size: 14px;
    font-weight: 600;
    color: var(--green-800);
}

.hero-pattern {
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: var(--green-50);
    clip-path: polygon(30% 0, 100% 0, 100% 100%, 0% 100%);
    z-index: 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--green-800);
    color: var(--white);
    border-color: var(--green-800);
}

.btn-primary:hover {
    background: var(--green-900);
    border-color: var(--green-900);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--stone-700);
    border-color: var(--stone-300);
}

.btn-secondary:hover {
    border-color: var(--green-700);
    color: var(--green-800);
    transform: translateY(-1px);
}

.btn-full {
    width: 100%;
}

/* Section shared */
.section-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--green-700);
    background: var(--green-50);
    border: 1px solid var(--green-100);
    padding: 5px 12px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(28px, 3.5vw, 44px);
    font-weight: 700;
    line-height: 1.15;
    color: var(--stone-900);
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 17px;
    line-height: 1.7;
    color: var(--stone-500);
    max-width: 560px;
}

.section-header {
    margin-bottom: 56px;
}

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

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

.service-card {
    background: var(--cream);
    border: 1px solid var(--stone-200);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition);
}

.service-card:hover {
    border-color: var(--green-600);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.service-icon {
    width: 52px;
    height: 52px;
    background: var(--green-50);
    border: 1px solid var(--green-100);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--green-800);
    margin-bottom: 20px;
    transition: all var(--transition);
}

.service-card:hover .service-icon {
    background: var(--green-800);
    border-color: var(--green-800);
    color: var(--white);
}

.service-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--stone-900);
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.service-desc {
    font-size: 15px;
    line-height: 1.65;
    color: var(--stone-500);
}

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

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

.about-image-group {
    position: relative;
}

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

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

.about-image-secondary {
    position: absolute;
    bottom: -32px;
    right: -32px;
    width: 55%;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--cream);
}

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

.about-experience {
    position: absolute;
    top: -24px;
    right: -16px;
    background: var(--green-800);
    color: var(--white);
    padding: 20px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.about-experience .exp-number {
    font-family: var(--font-heading);
    font-size: 36px;
    font-weight: 700;
    line-height: 1;
}

.about-experience .exp-label {
    font-size: 13px;
    font-weight: 500;
    opacity: 0.85;
    line-height: 1.4;
}

.about-content .section-title {
    margin-bottom: 20px;
}

.about-text {
    font-size: 16px;
    line-height: 1.75;
    color: var(--stone-600);
    margin-bottom: 16px;
}

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

.value-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 500;
    color: var(--stone-700);
}

.value-icon {
    width: 32px;
    height: 32px;
    background: var(--green-50);
    border: 1px solid var(--green-100);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--green-700);
    flex-shrink: 0;
}

/* Projects */
.projects {
    padding: 100px 0;
    background: var(--white);
}

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

.project-card {
    background: var(--cream);
    border: 1px solid var(--stone-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}

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

.project-image {
    overflow: hidden;
    aspect-ratio: 560 / 380;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-info {
    padding: 24px;
}

.project-category {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--green-700);
    background: var(--green-50);
    padding: 4px 10px;
    border-radius: 100px;
    margin-bottom: 12px;
}

.project-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--stone-900);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.project-desc {
    font-size: 14px;
    line-height: 1.65;
    color: var(--stone-500);
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: var(--green-900);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(82, 183, 136, 0.15) 0, transparent 70%);
    border-radius: 50%;
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(82, 183, 136, 0.1) 0, transparent 70%);
    border-radius: 50%;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
}

.cta-content .section-tag {
    background: rgba(143, 185, 150, 0.2);
    border-color: rgba(143, 185, 150, 0.3);
    color: var(--green-600);
}

.cta-content .section-title {
    color: var(--white);
    margin-bottom: 16px;
}

.cta-desc {
    font-size: 17px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 36px;
}

.cta-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-actions .btn-primary {
    background: var(--white);
    color: var(--green-900);
    border-color: var(--white);
}

.cta-actions .btn-primary:hover {
    background: var(--green-100);
    border-color: var(--green-100);
}

.cta-actions .btn-secondary {
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--white);
}

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

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

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

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

.contact-desc {
    font-size: 16px;
    line-height: 1.7;
    color: var(--stone-500);
    margin-bottom: 36px;
}

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

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

.contact-icon {
    width: 44px;
    height: 44px;
    background: var(--green-50);
    border: 1px solid var(--green-100);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--green-800);
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--stone-800);
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 15px;
    color: var(--stone-500);
    line-height: 1.6;
}

.contact-item a {
    color: var(--green-700);
    transition: color var(--transition);
}

.contact-item a:hover {
    color: var(--green-900);
    text-decoration: underline;
}

/* Form */
.contact-form-wrapper {
    background: var(--white);
    border: 1px solid var(--stone-200);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-sm);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--stone-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--stone-800);
    background: var(--stone-50);
    border: 1.5px solid var(--stone-200);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
    width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--green-600);
    box-shadow: 0 0 0 3px rgba(82, 183, 136, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--stone-300);
}

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

.form-note {
    font-size: 13px;
    color: var(--stone-500);
    text-align: center;
}

.form-success {
    text-align: center;
    padding: 40px 20px;
    color: var(--green-800);
}

.form-success svg {
    margin: 0 auto 16px;
    color: var(--green-600);
}

.form-success h3 {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--stone-900);
}

.form-success p {
    font-size: 15px;
    color: var(--stone-500);
    line-height: 1.6;
}

/* Footer */
.site-footer {
    background: var(--stone-900);
    color: var(--stone-300);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
}

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

.footer-desc {
    font-size: 14px;
    line-height: 1.7;
    color: var(--stone-500);
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--stone-200);
    margin-bottom: 16px;
}

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

.footer-links a {
    font-size: 14px;
    color: var(--stone-500);
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--green-600);
}

.footer-contact p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--stone-500);
}

.footer-contact a {
    color: var(--stone-400);
    transition: color var(--transition);
}

.footer-contact a:hover {
    color: var(--green-600);
}

.footer-bottom {
    border-top: 1px solid var(--stone-800);
    padding: 24px 0;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--stone-600);
}

/* Scroll reveal (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

/* Mobile responsive */
@media (max-width: 1024px) {
    .hero-grid {
        gap: 32px;
    }

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

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

    .projects-grid .project-card:last-child {
        grid-column: span 2;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--cream);
        border-bottom: 1px solid var(--stone-200);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
        box-shadow: var(--shadow-lg);
    }

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

    .nav-toggle {
        display: block;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        padding-bottom: 48px;
    }

    .hero-image {
        order: -1;
        max-width: 480px;
        margin: 0 auto;
    }

    .hero-pattern {
        display: none;
    }

    .hero-stats {
        gap: 0;
    }

    .stat-divider {
        margin: 0 16px;
    }

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

    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .about-image-secondary {
        right: 0;
        bottom: -24px;
    }

    .about-experience {
        right: 0;
        top: -16px;
    }

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

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

    .projects-grid .project-card:last-child {
        grid-column: span 1;
    }

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

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

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

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .cta-actions .btn {
        width: 100%;
        max-width: 280px;
    }
}

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

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

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

    .hero-stats {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .stat-divider {
        display: none;
    }

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