/* ===== VARIABLES ===== */
:root {
    --green-900: #1a3a2a;
    --green-800: #234d38;
    --green-700: #2d6147;
    --green-600: #3a7d5c;
    --green-500: #4a9e74;
    --green-400: #6db88e;
    --green-300: #96d0ad;
    --green-200: #c2e5d0;
    --green-100: #e8f5ee;
    --green-50: #f3faf6;

    --gray-900: #1a1d1b;
    --gray-800: #2d322e;
    --gray-700: #454b47;
    --gray-600: #5e6660;
    --gray-500: #7a827c;
    --gray-400: #9ea5a0;
    --gray-300: #c4c9c5;
    --gray-200: #dfe2df;
    --gray-100: #eef0ee;
    --gray-50: #f7f8f7;

    --white: #ffffff;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Merriweather', Georgia, serif;
    --shadow-sm: 0 1px 3px rgba(26,58,42,0.08);
    --shadow-md: 0 4px 12px rgba(26,58,42,0.1);
    --shadow-lg: 0 8px 30px rgba(26,58,42,0.12);
    --radius: 8px;
    --radius-lg: 12px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--gray-800);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--green-700); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--green-500); }

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== NAVIGATION ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-100);
    transition: box-shadow 0.3s;
}

.nav.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    font-family: var(--font-sans);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--green-900);
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--green-600);
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-700);
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--green-700);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-800);
    border-radius: 2px;
    transition: 0.3s;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.btn-primary {
    background: var(--green-700);
    color: var(--white);
    border-color: var(--green-700);
}

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

.btn-outline {
    background: transparent;
    color: var(--green-700);
    border-color: var(--green-700);
}

.btn-outline:hover {
    background: var(--green-700);
    color: var(--white);
}

.btn-nav {
    padding: 8px 20px;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.btn-full {
    width: 100%;
}

/* ===== HERO ===== */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(165deg, var(--green-50) 0%, var(--white) 50%, var(--green-100) 100%);
}

.hero-content {
    max-width: 680px;
}

.hero-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--green-600);
    margin-bottom: 16px;
}

.hero h1 {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--green-900);
    margin-bottom: 20px;
}

.hero h1 em {
    font-style: italic;
    color: var(--green-600);
}

.hero-sub {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--gray-600);
    margin-bottom: 32px;
}

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

/* ===== SECTIONS ===== */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 56px;
}

.section-header h2 {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--green-900);
    margin-bottom: 12px;
    line-height: 1.3;
}

.section-header p {
    font-size: 1.05rem;
    color: var(--gray-600);
}

/* ===== ABOUT ===== */
.about {
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 60px;
    align-items: start;
}

.profile-photo {
    width: 280px;
    height: 320px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.about-text h2 {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--green-900);
    margin-bottom: 16px;
}

.about-text .lead {
    font-size: 1.15rem;
    color: var(--green-800);
    font-weight: 500;
    margin-bottom: 16px;
}

.about-text p {
    color: var(--gray-700);
    margin-bottom: 14px;
}

/* ===== WHY A WEBSITE ===== */
.why-website {
    background: var(--green-50);
}

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

.benefit-card {
    background: var(--white);
    padding: 32px 28px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s, transform 0.3s;
}

.benefit-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.benefit-icon {
    width: 48px;
    height: 48px;
    background: var(--green-100);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    color: var(--green-700);
}

.benefit-icon svg {
    width: 28px;
    height: 28px;
}

.benefit-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--green-900);
    margin-bottom: 8px;
}

.benefit-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===== SERVICES ===== */
.services {
    background: var(--white);
}

.services-list {
    max-width: 700px;
    margin: 0 auto;
}

.service-item {
    display: flex;
    gap: 24px;
    padding: 28px 0;
    border-bottom: 1px solid var(--gray-100);
}

.service-item:last-child {
    border-bottom: none;
}

.service-number {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--green-400);
    flex-shrink: 0;
    padding-top: 2px;
}

.service-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--green-900);
    margin-bottom: 6px;
}

.service-content p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===== PORTFOLIO ===== */
.work {
    background: var(--green-50);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.portfolio-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s, transform 0.3s;
}

.portfolio-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.portfolio-image {
    background: var(--green-100);
    aspect-ratio: 16/10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.portfolio-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--green-600);
    padding: 8px;
}

.portfolio-placeholder svg {
    width: 100%;
    height: 100%;
}

.portfolio-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
}

.portfolio-info {
    padding: 24px;
}

.portfolio-info h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--green-900);
    margin-bottom: 8px;
}

.portfolio-info p {
    font-size: 0.88rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 12px;
}

.portfolio-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--green-700);
    background: var(--green-100);
    padding: 4px 12px;
    border-radius: 20px;
}

.portfolio-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

.portfolio-link:hover {
    color: inherit;
}

.portfolio-visit {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--green-600);
    margin-left: 8px;
    transition: color 0.2s;
}

.portfolio-link:hover .portfolio-visit {
    color: var(--green-800);
}

/* ===== CTA ===== */
.cta {
    background: var(--green-900);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta h2 {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--white);
    margin-bottom: 16px;
}

.cta p {
    color: var(--green-300);
    font-size: 1.05rem;
    margin-bottom: 32px;
}

.cta .btn-primary {
    background: var(--green-500);
    border-color: var(--green-500);
}

.cta .btn-primary:hover {
    background: var(--green-400);
    border-color: var(--green-400);
}

/* ===== CONTACT ===== */
.contact {
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--gray-800);
    transition: border-color 0.2s, box-shadow 0.2s;
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--green-500);
    box-shadow: 0 0 0 3px rgba(74,158,116,0.1);
}

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

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

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

.contact-card {
    background: var(--green-50);
    padding: 28px;
    border-radius: var(--radius-lg);
}

.contact-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--green-900);
    margin-bottom: 10px;
}

.contact-card p {
    font-size: 0.92rem;
    color: var(--gray-600);
    margin-bottom: 16px;
}

.contact-details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-details li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.92rem;
    color: var(--gray-700);
}

.contact-details svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--green-600);
}

.personal-note {
    background: var(--green-900);
    color: var(--green-200);
}

.personal-note p {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-style: italic;
    color: var(--green-200);
    line-height: 1.7;
}

.note-author {
    font-family: var(--font-sans);
    font-style: normal;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--green-400);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--gray-50);
    padding: 40px 0;
    border-top: 1px solid var(--gray-100);
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    text-align: center;
}

.footer-brand p {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-top: 6px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--gray-600);
    font-weight: 500;
}

.footer-links a:hover {
    color: var(--green-700);
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--gray-400);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }

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

    .profile-photo {
        width: 200px;
        height: 240px;
        margin: 0 auto;
    }

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

@media (max-width: 700px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px 24px;
        gap: 16px;
        border-bottom: 1px solid var(--gray-100);
        box-shadow: var(--shadow-md);
    }

    .nav-links.active {
        display: flex;
    }

    .hero {
        padding: 110px 0 60px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

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

    .section {
        padding: 60px 0;
    }

    .section-header h2 {
        font-size: 1.6rem;
    }

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

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

    .hero-actions .btn {
        text-align: center;
    }

    .cta h2 {
        font-size: 1.6rem;
    }
}