/* === Microsoft Fluent Design System === */

:root {
    --primary: #0065a0;
    --primary-hover: #005da6;
    --primary-dark: #005080;
    --accent: #0078d4;
    --accent-hover: #106ebe;
    --bg-body: #f5f5f5;
    --bg-white: #ffffff;
    --bg-dark: #1a1a2e;
    --bg-dark-alt: #16213e;
    --bg-light: #f8f9fa;
    --text-primary: #242424;
    --text-secondary: #616161;
    --text-light: #ffffff;
    --text-muted: #a0a0a0;
    --border: #e0e0e0;
    --radius: 4px;
    --radius-lg: 8px;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
    --transition: 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Segoe UI Variable Text', 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
    color: var(--text-primary);
    background: var(--bg-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

/* ===== Header ===== */
.header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 64px;
}
.logo {
    font-size: 1.25rem; font-weight: 700; color: var(--text-primary);
    text-decoration: none; letter-spacing: -0.5px;
}
.logo-accent { color: var(--accent); }
.nav { display: flex; gap: 32px; }
.nav a {
    text-decoration: none; color: var(--text-secondary); font-size: 0.9rem; font-weight: 500;
    transition: color var(--transition);
}
.nav a:hover { color: var(--accent); }
.burger { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.burger span {
    display: block; width: 22px; height: 2px; background: var(--text-primary);
    margin: 5px 0; transition: var(--transition); border-radius: 1px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 10px 24px; border-radius: var(--radius); font-size: 0.9rem;
    font-weight: 600; text-decoration: none; cursor: pointer;
    border: 1px solid transparent; transition: all var(--transition);
    white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn-outline:hover { background: var(--accent); color: #fff; }
.btn-white { background: #fff; color: var(--accent); }
.btn-white:hover { background: #f0f4f8; }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-block { display: block; width: 100%; }

.mt-2 { margin-top: 8px; }

/* ===== Hero ===== */
.hero {
    padding: 80px 0 100px;
    background: linear-gradient(135deg, #0a1628 0%, #1a2a4a 50%, #0d2137 100%);
    color: #fff;
    overflow: hidden;
}
.hero-inner {
    display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.hero-content { position: relative; z-index: 2; }
.hero-label {
    display: inline-block; padding: 6px 16px; background: rgba(0,120,212,0.2);
    border: 1px solid rgba(0,120,212,0.4); border-radius: 20px;
    font-size: 0.85rem; color: #60b5ff; margin-bottom: 16px;
}
.hero-name {
    font-size: 3.5rem; font-weight: 700; line-height: 1.1;
    letter-spacing: -1px;
}
.hero-sub {
    margin: 24px 0 32px; font-size: 1.1rem; opacity: 0.85; line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 40px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.15); }
.stat-number { display: block; font-size: 2rem; font-weight: 700; color: #60b5ff; }
.stat-text { font-size: 0.85rem; opacity: 0.7; }
.hero-image img {
    width: 100%; border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

/* ===== Sections ===== */
.section { padding: 80px 0; }
.section-dark { background: var(--bg-dark); color: #fff; }
.section-dark .section-label { color: #60b5ff; }
.section-light { background: var(--bg-white); }
.section-accent {
    background: linear-gradient(135deg, #0078d4 0%, #005080 100%);
    color: #fff;
}
.section-header { text-align: center; max-width: 700px; margin: 0 auto 60px; }
.section-label {
    display: inline-block; font-size: 0.85rem; font-weight: 600;
    color: var(--accent); text-transform: uppercase; letter-spacing: 2px;
    margin-bottom: 12px;
}
.section-header h2 {
    font-size: 2.25rem; font-weight: 700; margin-bottom: 16px;
    letter-spacing: -0.5px; line-height: 1.2;
}
.section-desc { color: var(--text-secondary); font-size: 1.05rem; }
.section-dark .section-desc { color: rgba(255,255,255,0.7); }
.section-accent .section-desc { color: rgba(255,255,255,0.8); }

/* ===== About Cards ===== */
.about-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.about-card {
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg); padding: 40px 32px; text-align: center;
    transition: all var(--transition);
}
.about-card:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
.about-icon { font-size: 2.5rem; margin-bottom: 16px; }
.about-card h3 { font-size: 1.2rem; margin-bottom: 12px; }
.about-card p { color: rgba(255,255,255,0.7); font-size: 0.95rem; }

/* ===== Specialization Grid ===== */
.spec-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.spec-card {
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px 24px;
    transition: all var(--transition); position: relative; overflow: hidden;
}
.spec-card:hover { border-color: var(--accent); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.spec-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: var(--accent); transform: scaleX(0); transition: transform var(--transition);
    transform-origin: left;
}
.spec-card:hover::before { transform: scaleX(1); }
.spec-number {
    display: inline-block; font-size: 0.8rem; font-weight: 600;
    color: var(--accent); margin-bottom: 12px;
}
.spec-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.spec-card p { font-size: 0.9rem; color: var(--text-secondary); }

/* ===== Results ===== */
.results-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.result-card {
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg); padding: 32px;
    transition: all var(--transition);
}
.result-card:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
.result-highlight {
    background: rgba(0,120,212,0.15); border-color: rgba(0,120,212,0.3);
    grid-column: span 2;
}
.result-badge {
    display: inline-block; padding: 4px 12px; background: rgba(0,120,212,0.3);
    border-radius: 20px; font-size: 0.75rem; font-weight: 600; margin-bottom: 16px;
}
.result-metrics { margin-bottom: 16px; }
.metric-row {
    display: flex; justify-content: space-between; padding: 6px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08); font-size: 0.9rem;
}
.metric-label { color: rgba(255,255,255,0.5); }
.result-big { font-size: 1.5rem; font-weight: 700; color: #60b5ff; }

/* ===== Achievements ===== */
.achievements-list { max-width: 800px; margin: 0 auto; }
.achievement-item {
    display: flex; align-items: baseline; gap: 24px; padding: 16px 0;
    border-bottom: 1px solid var(--border);
}
.achievement-year {
    flex-shrink: 0; font-weight: 700; color: var(--accent); font-size: 0.95rem;
    min-width: 80px;
}
.achievement-title { color: var(--text-primary); font-size: 0.95rem; }

/* ===== Calculator ===== */
.calc-wrapper {
    display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
    background: rgba(255,255,255,0.1); border-radius: var(--radius-lg);
    padding: 40px; border: 1px solid rgba(255,255,255,0.15);
    max-width: 900px; margin: 0 auto;
}
.calc-field { margin-bottom: 24px; }
.calc-field label {
    display: block; font-size: 0.9rem; font-weight: 600; margin-bottom: 8px;
}
.calc-slider { display: flex; align-items: center; gap: 16px; }
.calc-slider input[type="range"] { flex: 1; accent-color: #fff; height: 4px; }
.calc-value {
    display: inline-flex; align-items: center; justify-content: center;
    width: 48px; height: 48px; background: rgba(255,255,255,0.2);
    border-radius: 50%; font-size: 1.25rem; font-weight: 700;
}
.calc-field select {
    width: 100%; padding: 10px 16px; border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.3); background: rgba(255,255,255,0.1);
    color: #fff; font-size: 0.95rem; appearance: auto;
}
.calc-field select option { background: var(--bg-dark); color: #fff; }
.calc-checkboxes label {
    display: flex; align-items: center; gap: 8px;
    font-weight: 400; font-size: 0.9rem; cursor: pointer; padding: 4px 0;
}
.calc-result { text-align: center; padding: 20px; }
.calc-total-label { font-size: 0.9rem; opacity: 0.8; margin-bottom: 8px; }
.calc-total { font-size: 3rem; font-weight: 700; margin-bottom: 24px; }
.calc-monthly { font-size: 0.95rem; opacity: 0.8; margin-bottom: 24px; }
.calc-monthly strong { color: #fff; font-size: 1.2rem; }
.calc-cta { margin-top: 8px; }

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-item {
    display: flex; gap: 16px; margin-bottom: 24px;
    padding: 20px; background: rgba(255,255,255,0.05);
    border-radius: var(--radius-lg);
}
.contact-icon { font-size: 1.5rem; flex-shrink: 0; }
.contact-item strong { display: block; margin-bottom: 4px; }
.contact-item p { color: rgba(255,255,255,0.7); font-size: 0.9rem; }
.contact-item a { color: #60b5ff; text-decoration: none; }
.contact-item a:hover { text-decoration: underline; }

.contact-form-wrap {
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg); padding: 40px;
}
.success-message {
    background: rgba(0,200,100,0.15); border: 1px solid rgba(0,200,100,0.3);
    color: #80ffb0; padding: 16px 24px; border-radius: var(--radius);
    margin-bottom: 24px; font-size: 0.95rem;
}
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px;
    color: rgba(255,255,255,0.8);
}
.form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: 10px 16px; border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.2); background: rgba(255,255,255,0.08);
    color: #fff; font-size: 0.95rem; font-family: inherit;
    transition: border-color var(--transition);
}
.form-group input::placeholder, .form-group textarea::placeholder {
    color: rgba(255,255,255,0.4);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none; border-color: var(--accent);
}
.form-group textarea { resize: vertical; }
.form-group select { appearance: auto; }
.form-group select option { background: var(--bg-dark); color: #fff; }
.form-consent {
    display: flex; align-items: flex-start; gap: 8px; margin-bottom: 20px;
    font-size: 0.8rem; color: rgba(255,255,255,0.6);
}
.form-consent input { margin-top: 4px; }

/* ===== Footer ===== */
.footer { background: #0f1923; color: rgba(255,255,255,0.7); padding: 60px 0 0; }
.footer-inner {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
    padding-bottom: 40px;
}
.footer-tagline { font-size: 0.9rem; margin-top: 8px; }
.footer-col strong {
    display: block; color: #fff; font-size: 0.9rem; margin-bottom: 16px;
}
.footer-col a {
    display: block; color: rgba(255,255,255,0.6); text-decoration: none;
    font-size: 0.9rem; padding: 4px 0; transition: color var(--transition);
}
.footer-col a:hover { color: #fff; }
.footer-col p { font-size: 0.9rem; margin-bottom: 4px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0;
    text-align: center; font-size: 0.85rem; color: rgba(255,255,255,0.4);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; text-align: center; }
    .hero-name { font-size: 2.5rem; }
    .hero-stats { justify-content: center; }
    .hero-actions { justify-content: center; }
    .spec-grid { grid-template-columns: repeat(2, 1fr); }
    .results-grid { grid-template-columns: repeat(2, 1fr); }
    .result-highlight { grid-column: span 2; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav { display: none; }
    .burger { display: block; }
    .hero { padding: 40px 0 60px; }
    .hero-name { font-size: 2rem; }
    .hero-sub { font-size: 1rem; }
    .about-cards { grid-template-columns: 1fr; }
    .spec-grid { grid-template-columns: 1fr; }
    .results-grid { grid-template-columns: 1fr; }
    .result-highlight { grid-column: span 1; }
    .contact-grid { grid-template-columns: 1fr; }
    .calc-wrapper { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; }
    .section { padding: 60px 0; }
    .section-header h2 { font-size: 1.75rem; }
    .section-header { margin-bottom: 40px; }
}

/* ===== Mobile Menu ===== */
.mobile-menu {
    display: none; position: fixed; top: 64px; left: 0; right: 0; bottom: 0;
    background: #fff; z-index: 99; padding: 24px; flex-direction: column; gap: 12px;
}
.mobile-menu.active { display: flex; }
.mobile-link {
    text-decoration: none; color: var(--text-primary); font-size: 1.1rem;
    font-weight: 500; padding: 12px 0; border-bottom: 1px solid var(--border);
}

/* ===== Smooth Animations ===== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.6s ease forwards; }