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

:root {
    --green-dark: #1a5c35;
    --green: #2d7a4f;
    --green-light: #3d9a65;
    --green-pale: #e8f5ee;
    --green-border: #c3e6d0;
    --white: #ffffff;
    --grey-light: #f7f8fa;
    --grey-mid: #eaecef;
    --grey: #9aa3af;
    --text: #1e2328;
    --text-secondary: #4a5568;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.16);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.25s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--white);
}

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

/* === HEADER / NAV === */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--grey-mid);
    padding: 14px 0;
    transition: box-shadow var(--transition);
}

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

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--green);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
}

.logo-text {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--green-dark);
}

.logo-sub {
    font-size: 0.72rem;
    color: var(--grey);
    display: block;
    font-weight: 400;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 28px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition);
}

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

.btn-nav {
    background: var(--green);
    color: var(--white) !important;
    padding: 8px 20px;
    border-radius: 8px;
    transition: background var(--transition) !important;
}

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

/* === BUTTONS === */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    line-height: 1;
}

.btn-primary {
    background: var(--green);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(45,122,79,0.35);
}

.btn-primary:hover {
    background: var(--green-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(45,122,79,0.45);
}

.btn-outline {
    background: transparent;
    color: var(--green);
    border: 2px solid var(--green);
}

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

.btn-lg {
    padding: 18px 44px;
    font-size: 1.1rem;
    border-radius: 12px;
}

/* === HERO === */
.hero {
    padding: 130px 0 80px;
    background: linear-gradient(135deg, #f0faf4 0%, #e8f5ee 40%, #f7fbf9 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -80px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(45,122,79,0.08) 0%, transparent 70%);
    pointer-events: none;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--green-pale);
    border: 1px solid var(--green-border);
    color: var(--green-dark);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.hero-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--green);
    border-radius: 50%;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--text);
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

.hero h1 span {
    color: var(--green);
}

.hero-sub {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--green-dark);
    margin-bottom: 16px;
}

.hero-body {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 460px;
}

.hero-cta {
    display: flex;
    gap: 14px;
    align-items: center;
    flex-wrap: wrap;
}

.hero-note {
    font-size: 0.82rem;
    color: var(--grey);
}

.hero-visual {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 20px 24px;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 16px;
    border-left: 4px solid var(--green);
}

.stat-card:nth-child(2) {
    border-left-color: #e67e22;
    margin-left: 30px;
}

.stat-card:nth-child(3) {
    border-left-color: #3498db;
}

.stat-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.stat-num {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
}

.stat-label {
    font-size: 0.82rem;
    color: var(--grey);
    margin-top: 2px;
}

/* === SECTION BASE === */
section {
    padding: 80px 0;
}

.section-tag {
    display: inline-block;
    background: var(--green-pale);
    color: var(--green-dark);
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 5px 14px;
    border-radius: 20px;
    margin-bottom: 14px;
}

.section-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 580px;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header .section-desc {
    margin: 0 auto;
}

/* === PROBLEMS === */
.problems {
    background: var(--grey-light);
}

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

.problem-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    box-shadow: var(--shadow-sm);
    border-top: 3px solid var(--green);
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.problem-icon {
    font-size: 2.2rem;
    margin-bottom: 16px;
    display: block;
}

.problem-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
    line-height: 1.4;
}

.problem-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.service-card {
    background: var(--grey-light);
    border-radius: var(--radius-lg);
    padding: 28px 22px;
    border: 2px solid transparent;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--green);
    transform: scaleX(0);
    transition: transform var(--transition);
}

.service-card:hover::before {
    transform: scaleX(1);
}

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

.service-card.featured {
    background: var(--green);
    color: var(--white);
    border-color: var(--green-dark);
}

.service-card.featured::before {
    background: rgba(255,255,255,0.3);
    transform: scaleX(1);
}

.service-card.featured h3,
.service-card.featured .service-price,
.service-card.featured p {
    color: var(--white);
}

.service-card.featured .service-badge {
    background: rgba(255,255,255,0.2);
    color: var(--white);
}

.service-badge {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 3px 10px;
    border-radius: 12px;
    background: var(--green-pale);
    color: var(--green-dark);
    margin-bottom: 14px;
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 8px;
}

.service-price {
    font-size: 1rem;
    font-weight: 700;
    color: var(--green);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* === WHY US === */
.why-us {
    background: var(--grey-light);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.why-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 28px 22px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.why-icon {
    width: 56px;
    height: 56px;
    background: var(--green-pale);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin: 0 auto 16px;
}

.why-card h3 {
    font-size: 0.98rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.4;
}

.why-card p {
    font-size: 0.84rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* === HOW IT WORKS === */
.how-it-works {
    background: var(--white);
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    position: relative;
}

.steps::before {
    content: '';
    position: absolute;
    top: 40px;
    left: calc(16.67% + 12px);
    right: calc(16.67% + 12px);
    height: 2px;
    background: var(--green-border);
    z-index: 0;
}

.step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-num {
    width: 56px;
    height: 56px;
    background: var(--green);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 800;
    margin: 0 auto 20px;
    box-shadow: 0 4px 14px rgba(45,122,79,0.35);
    position: relative;
    z-index: 2;
}

.step h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.step p {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

/* === LEAD FORM === */
.lead-form-section {
    background: linear-gradient(135deg, var(--green-dark) 0%, var(--green) 100%);
    padding: 80px 0;
}

.form-wrapper {
    max-width: 560px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 44px 40px;
    box-shadow: var(--shadow-lg);
}

.form-title {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 6px;
    text-align: center;
}

.form-subtitle {
    font-size: 0.9rem;
    color: var(--grey);
    text-align: center;
    margin-bottom: 28px;
}

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

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

.form-group input {
    width: 100%;
    padding: 13px 16px;
    border: 1.5px solid var(--grey-mid);
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text);
    background: var(--white);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.form-group input:focus {
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(45,122,79,0.12);
}

.form-group input::placeholder {
    color: var(--grey);
}

.form-submit {
    width: 100%;
    padding: 16px;
    font-size: 1rem;
    margin-top: 8px;
    border-radius: 10px;
}

.form-success {
    display: none;
    text-align: center;
    padding: 24px;
}

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

.success-icon {
    font-size: 3rem;
    margin-bottom: 12px;
    display: block;
}

.success-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.success-text {
    font-size: 0.92rem;
    color: var(--text-secondary);
}

.form-error-msg {
    display: none;
    background: #fff5f5;
    border: 1px solid #fecaca;
    color: #dc2626;
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 0.85rem;
    margin-top: 10px;
}

.form-error-msg.show {
    display: block;
}

/* === FOOTER === */
.site-footer {
    background: var(--text);
    color: rgba(255,255,255,0.7);
    padding: 32px 0;
    text-align: center;
    font-size: 0.88rem;
}

.site-footer a {
    color: var(--green-light);
    text-decoration: none;
}

.site-footer a:hover {
    text-decoration: underline;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

/* === MOBILE HAMBURGER === */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* === RESPONSIVE === */
@media (max-width: 900px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .hero-visual {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .stat-card:nth-child(2) {
        margin-left: 0;
    }

    .problems-grid,
    .services-grid,
    .why-grid,
    .steps {
        grid-template-columns: 1fr 1fr;
    }

    .steps::before {
        display: none;
    }

    nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--white);
        border-bottom: 1px solid var(--grey-mid);
        padding: 16px 24px;
        flex-direction: column;
        box-shadow: var(--shadow-sm);
    }

    nav.open {
        display: flex;
    }

    nav a {
        margin: 6px 0;
        font-size: 1rem;
    }

    .hamburger {
        display: flex;
    }
}

@media (max-width: 600px) {
    .hero {
        padding: 100px 0 60px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero-visual {
        grid-template-columns: 1fr;
    }

    .problems-grid,
    .services-grid,
    .why-grid,
    .steps {
        grid-template-columns: 1fr;
    }

    section {
        padding: 56px 0;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .form-wrapper {
        padding: 28px 22px;
    }

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