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

:root {
    --primary: #1a3a5c;
    --primary-light: #2d5a8e;
    --accent: #c4a35a;
    --accent-light: #d9b96e;
    --dark: #1a1a2e;
    --grey-900: #16213e;
    --grey-700: #4a5568;
    --grey-500: #718096;
    --grey-300: #cbd5e0;
    --grey-100: #f7fafc;
    --grey-50: #f0f4f8;
    --white: #ffffff;
    --success: #2f855a;
    --error: #c53030;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --transition: 0.3s ease;
    --container: 1140px;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--grey-700);
    background: var(--white);
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }

h1, h2, h3, h4, h5 {
    color: var(--grey-900);
    font-weight: 700;
    line-height: 1.3;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.1rem; }

.accent { color: var(--accent); }

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
    text-align: center;
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-light); color: var(--white); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-secondary { background: var(--accent); color: var(--white); }
.btn-secondary:hover { background: var(--accent-light); color: var(--white); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-outline { border-color: var(--white); color: var(--white); }
.btn-outline:hover { background: var(--white); color: var(--primary); }

/* ===== Header ===== */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: box-shadow var(--transition);
    border-bottom: 1px solid var(--grey-300);
}
.site-header.scrolled { box-shadow: var(--shadow); }

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

.logo { display: flex; flex-direction: column; }
.logo-text { font-weight: 800; font-size: 1.2rem; color: var(--primary); }
.logo-tagline { font-size: 0.7rem; color: var(--grey-500); text-transform: uppercase; letter-spacing: 1.5px; }

.site-nav ul { list-style: none; display: flex; gap: 32px; }
.site-nav a {
    color: var(--grey-700);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 0;
    position: relative;
}
.site-nav a.active,
.site-nav a:hover { color: var(--primary); }
.site-nav a.active::after,
.site-nav a:hover::after {
    content: '';
    position: absolute;
    bottom: -2px; left: 0; right: 0;
    height: 2px;
    background: var(--accent);
}

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; }
.nav-toggle span { width: 26px; height: 3px; background: var(--grey-900); border-radius: 2px; transition: var(--transition); }

/* ===== Hero ===== */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--grey-900) 100%);
    color: var(--white);
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 50%; height: 100%;
    background: radial-gradient(circle at 70% 40%, rgba(196,163,90,0.15) 0%, transparent 60%);
}
.hero-content { max-width: 700px; position: relative; z-index: 1; }
.hero-eyebrow { text-transform: uppercase; letter-spacing: 2px; font-size: 0.85rem; color: var(--accent-light); margin-bottom: 16px; font-weight: 600; }
.hero h1 { color: var(--white); margin-bottom: 20px; }
.hero-subtitle { font-size: 1.15rem; opacity: 0.9; margin-bottom: 32px; max-width: 600px; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== Stats Bar ===== */
.stats-bar {
    background: var(--grey-900);
    padding: 40px 0;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}
.stat { display: flex; flex-direction: column; }
.stat-number { font-size: 2.2rem; font-weight: 800; color: var(--accent); }
.stat-label { font-size: 0.9rem; color: var(--grey-300); margin-top: 4px; }

/* ===== Sections ===== */
.section { padding: 80px 0; }
.section-alt { background: var(--grey-50); }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 56px; }
.section-header h2 { margin-bottom: 16px; }
.section-header p { font-size: 1.1rem; color: var(--grey-500); }
.section-footer { text-align: center; margin-top: 48px; }

/* ===== Services Grid ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.service-card {
    background: var(--white);
    border: 1px solid var(--grey-300);
    border-radius: var(--radius);
    padding: 36px 28px;
    transition: all var(--transition);
}
.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}
.service-icon { font-size: 2.5rem; margin-bottom: 16px; }
.service-card h3 { margin-bottom: 12px; }
.service-card p { font-size: 0.95rem; }

/* ===== About Preview ===== */
.about-preview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}
.about-text h2 { margin-bottom: 20px; }
.about-text p { margin-bottom: 16px; }
.about-highlights { display: flex; flex-direction: column; gap: 20px; }
.highlight-card {
    background: var(--white);
    border-left: 4px solid var(--accent);
    padding: 24px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
}
.highlight-card h4 { color: var(--primary); margin-bottom: 8px; }

/* ===== CTA Banner ===== */
.cta-banner {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    text-align: center;
    padding: 72px 0;
}
.cta-banner h2 { color: var(--white); margin-bottom: 16px; }
.cta-banner p { font-size: 1.1rem; opacity: 0.9; margin-bottom: 32px; }

/* ===== Footer ===== */
.site-footer {
    background: var(--dark);
    color: var(--grey-300);
    padding: 56px 0 24px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}
.footer-col h4 { color: var(--white); margin-bottom: 12px; font-size: 1rem; }
.footer-col p { margin-bottom: 8px; font-size: 0.9rem; }
.footer-col a { color: var(--grey-300); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--grey-500);
}

/* ===== Page Banner ===== */
.page-banner {
    background: linear-gradient(135deg, var(--primary) 0%, var(--grey-900) 100%);
    color: var(--white);
    padding: 120px 0 56px;
    text-align: center;
}
.page-banner h1 { color: var(--white); }
.page-banner p { font-size: 1.15rem; opacity: 0.85; margin-top: 12px; }

/* ===== About Page ===== */
.timeline { max-width: 800px; margin: 0 auto; }
.timeline-item {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 32px;
    padding: 28px 0;
    border-bottom: 1px solid var(--grey-300);
}
.timeline-item:last-child { border-bottom: none; }
.timeline-date { color: var(--accent); font-weight: 600; font-size: 0.9rem; }
.timeline-content h3 { margin-bottom: 4px; }
.timeline-role { color: var(--grey-500); font-size: 0.95rem; margin-bottom: 12px; }
.timeline-content ul { padding-left: 20px; margin-top: 12px; }
.timeline-content li { margin-bottom: 8px; font-size: 0.95rem; }

.skills-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 32px;
}
.skill-tag {
    background: var(--grey-50);
    border: 1px solid var(--grey-300);
    border-radius: var(--radius-sm);
    padding: 16px;
    text-align: center;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--grey-900);
    transition: var(--transition);
}
.skill-tag:hover { border-color: var(--accent); background: var(--white); }

/* ===== Pricing Page ===== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    align-items: stretch;
}
.pricing-card {
    background: var(--white);
    border: 1px solid var(--grey-300);
    border-radius: var(--radius);
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    position: relative;
}
.pricing-card:hover { box-shadow: var(--shadow-lg); }
.pricing-card.featured {
    border-color: var(--accent);
    border-width: 2px;
    box-shadow: var(--shadow);
}
.pricing-badge {
    position: absolute;
    top: -14px; left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--white);
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.pricing-card h3 { text-align: center; margin-bottom: 8px; }
.pricing-desc { text-align: center; font-size: 0.9rem; color: var(--grey-500); margin-bottom: 24px; }
.pricing-price { text-align: center; margin-bottom: 28px; }
.pricing-price .amount { font-size: 2.8rem; font-weight: 800; color: var(--primary); }
.pricing-price .period { font-size: 1rem; color: var(--grey-500); }
.pricing-features { list-style: none; margin-bottom: 32px; flex-grow: 1; }
.pricing-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--grey-300);
    font-size: 0.95rem;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.pricing-features li::before { content: '✓'; color: var(--success); font-weight: 700; flex-shrink: 0; }
.pricing-features li.excluded { color: var(--grey-500); }
.pricing-features li.excluded::before { content: '—'; color: var(--grey-300); }
.pricing-card .btn { width: 100%; }

.pricing-note {
    text-align: center;
    margin-top: 40px;
    padding: 24px;
    background: var(--grey-50);
    border-radius: var(--radius);
    color: var(--grey-500);
    font-size: 0.9rem;
}

/* ===== Contact Form ===== */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
    align-items: start;
}
.contact-info-card {
    background: var(--grey-50);
    border-radius: var(--radius);
    padding: 36px;
}
.contact-info-card h3 { margin-bottom: 20px; }
.contact-info-card .info-item { margin-bottom: 20px; display: flex; align-items: flex-start; gap: 12px; }
.contact-info-card .info-icon { font-size: 1.3rem; }
.contact-info-card .info-label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; color: var(--grey-500); }
.contact-info-card .info-value { font-weight: 600; color: var(--grey-900); }

.contact-form {
    background: var(--white);
    border: 1px solid var(--grey-300);
    border-radius: var(--radius);
    padding: 40px;
}
.form-group { margin-bottom: 24px; }
.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--grey-900);
    margin-bottom: 8px;
}
.form-group label .required { color: var(--error); }
.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--grey-300);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition);
}
.form-control:focus { outline: none; border-color: var(--primary-light); }
textarea.form-control { min-height: 140px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.form-msg {
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    font-size: 0.95rem;
}
.form-msg.success { background: #f0fff4; border: 1px solid #9ae6b4; color: var(--success); }
.form-msg.error { background: #fff5f5; border: 1px solid #feb2b2; color: var(--error); }
.field-error { color: var(--error); font-size: 0.85rem; margin-top: 4px; }
.form-control.error-field { border-color: var(--error); }

/* ===== Responsive ===== */
@media (max-width: 968px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
    .about-preview { grid-template-columns: 1fr; gap: 32px; }
    .skills-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
    .contact-layout { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .site-nav {
        position: fixed;
        top: 72px; left: 0; right: 0;
        background: var(--white);
        border-bottom: 1px solid var(--grey-300);
        padding: 16px 24px;
        transform: translateY(-200%);
        transition: transform var(--transition);
        box-shadow: var(--shadow);
    }
    .site-nav.open { transform: translateY(0); }
    .site-nav ul { flex-direction: column; gap: 12px; }
    .services-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .timeline-item { grid-template-columns: 1fr; gap: 8px; }
    .hero { padding: 120px 0 60px; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .skills-grid { grid-template-columns: 1fr; }
    .hero-cta { flex-direction: column; }
    .hero-cta .btn { width: 100%; }
    .container { padding: 0 16px; }
}