/* ===========================
   CSS Variables & Reset
   =========================== */
:root {
    --primary: #2574A9;
    --primary-dark: #1a5a85;
    --primary-light: #3a8ec4;
    --primary-bg: #EBF4FA;
    --primary-bg-hover: #d6e9f5;
    
    --text-dark: #0F172A;
    --text-body: #475569;
    --text-light: #94A3B8;
    
    --bg-white: #FFFFFF;
    --bg-light: #F8FAFC;
    --bg-section: #F1F5F9;
    
    --footer-bg: #0F172A;
    --footer-text: rgba(255, 255, 255, 0.7);
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.12);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --container-max: 1200px;
    --header-height: 72px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-body);
    background: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
    color: var(--text-dark);
    font-weight: 700;
    line-height: 1.2;
}

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

a:hover {
    color: var(--primary-dark);
}

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

/* ===========================
   Layout
   =========================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===========================
   Buttons
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37, 116, 169, 0.3);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.btn-sm { padding: 8px 18px; font-size: 0.875rem; }
.btn-lg { padding: 16px 32px; font-size: 1rem; }
.btn-full { width: 100%; justify-content: center; }

/* ===========================
   Header
   =========================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    z-index: 1000;
    transition: all var(--transition);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo { display: flex; align-items: center; }
.logo-img { height: 56px; width: auto; }

.nav {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-body);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-link:hover {
    color: var(--primary);
    background: var(--primary-bg);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.phone-link {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dark);
}

.phone-link:hover { color: var(--primary); }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===========================
   Hero
   =========================== */
.hero {
    position: relative;
    padding: calc(var(--header-height) + 80px) 0 120px;
    background: linear-gradient(135deg, #EBF4FA 0%, #d6e9f5 50%, #c4dff0 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 116, 169, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(37, 116, 169, 0.1);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 100px;
    margin-bottom: 24px;
    border: 1px solid rgba(37, 116, 169, 0.15);
}

.hero h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero-text {
    font-size: 1.1rem;
    color: var(--text-body);
    margin-bottom: 32px;
    max-width: 520px;
}

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

.hero-visual {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 16px;
}

.hero-card {
    background: white;
    padding: 48px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
}

.hero-logo-display {
    margin-bottom: 8px;
}

.hero-logo-img {
    max-width: 280px;
    height: auto;
}

.hero-tagline {
    font-size: 1.3rem;
    font-weight: 700;
    font-style: italic;
    color: var(--primary);
    margin-bottom: 32px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    justify-content: center;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-light);
    font-weight: 500;
    margin-top: 4px;
}

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: auto;
}

/* ===========================
   Section Headers
   =========================== */
.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header h2 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
}

.section-header-left { text-align: left; }
.section-header-left h2::after { left: 0; transform: none; }

.section-header p {
    font-size: 1.05rem;
    color: var(--text-light);
    margin-top: 16px;
}

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

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

.service-card {
    background: var(--bg-white);
    padding: 36px 28px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(0,0,0,0.06);
    text-align: center;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

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

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

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

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    background: var(--primary-bg);
    color: var(--primary);
    margin-bottom: 20px;
    transition: all var(--transition);
}

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

.service-card h3 {
    font-size: 1.15rem;
    margin-bottom: 12px;
}

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

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

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

.about-content p {
    margin-bottom: 16px;
    font-size: 1rem;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.highlight-card {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    border: 1px solid rgba(0,0,0,0.04);
}

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

.highlight-accent {
    background: var(--primary);
    color: white;
    border-color: transparent;
}

.highlight-accent h3,
.highlight-accent p {
    color: white;
}

.highlight-accent .highlight-icon {
    background: rgba(255,255,255,0.15);
    color: white;
}

.highlight-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--primary-bg);
    color: var(--primary);
}

.highlight-card h3 {
    font-size: 1rem;
    margin-bottom: 6px;
}

.highlight-card p {
    font-size: 0.875rem;
    color: var(--text-light);
    line-height: 1.5;
}

/* ===========================
   Area
   =========================== */
.area {
    padding: 100px 0;
    background: var(--bg-white);
}

.area-card {
    background: linear-gradient(135deg, var(--primary-bg) 0%, white 100%);
    border: 1px solid rgba(37, 116, 169, 0.1);
    border-radius: var(--radius-lg);
    padding: 48px;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.area-icon {
    color: var(--primary);
    margin-bottom: 20px;
}

.area-card h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.area-card p {
    color: var(--text-body);
    margin-bottom: 24px;
}

.area-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.area-tag {
    padding: 6px 16px;
    background: white;
    border: 1px solid rgba(37, 116, 169, 0.15);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--primary);
    transition: all var(--transition);
}

.area-tag:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 48px;
    align-items: start;
}

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

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

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-bg);
    color: var(--primary);
    border-radius: var(--radius-sm);
}

.contact-item h4 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-item a,
.contact-item p {
    font-size: 1.05rem;
    color: var(--text-dark);
    font-weight: 500;
}

.contact-item a:hover { color: var(--primary); }

/* Contact Form */
.contact-form {
    background: white;
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-dark);
    border: 1.5px solid #E2E8F0;
    border-radius: var(--radius-sm);
    background: var(--bg-light);
    transition: all var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 116, 169, 0.1);
    background: white;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-success {
    display: none;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    padding: 16px;
    background: #ECFDF5;
    color: #065F46;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

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

.form-error {
    display: none;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    padding: 16px;
    background: #FEF2F2;
    color: #991B1B;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.form-error.show {
    display: flex;
}

/* ===========================
   Footer
   =========================== */
.footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 60px 0 0;
}

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

.footer-brand p {
    margin-top: 16px;
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-brand-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: white;
    letter-spacing: -0.01em;
}

.footer h4 {
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

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

.footer-links a,
.footer-contact a {
    color: var(--footer-text);
    font-size: 0.9rem;
    transition: color var(--transition);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: white;
}

.footer-contact p {
    font-size: 0.9rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
}

.footer-bottom p {
    font-size: 0.8rem;
    text-align: center;
    color: rgba(255,255,255,0.4);
}

/* ===========================
   Animations
   =========================== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .about-inner { grid-template-columns: 1fr; gap: 40px; }
    .hero-inner { grid-template-columns: 1fr; gap: 40px; text-align: center; }
    .hero-text { margin-left: auto; margin-right: auto; }
    .hero-buttons { justify-content: center; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    :root { --header-height: 64px; }
    
    .nav {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 16px 24px;
        border-bottom: 1px solid rgba(0,0,0,0.06);
        box-shadow: var(--shadow-lg);
    }
    
    .nav.open { display: flex; }
    
    .hamburger { display: flex; }
    
    .phone-link span { display: none; }
    
    .btn-sm { display: none; }
    
    .hero {
        padding: calc(var(--header-height) + 48px) 0 80px;
    }
    
    .hero h1 { font-size: 1.75rem; }
    
    .hero-card { padding: 32px 24px; }
    
    .hero-stats { gap: 24px; }
    
    .services-grid { grid-template-columns: 1fr; }
    
    .form-row { grid-template-columns: 1fr; }
    
    .area-card { padding: 32px 24px; }
    
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }
    
    .section-header { margin-bottom: 40px; }
    
    .services, .about, .area, .contact { padding: 64px 0; }
    
    .contact-form { padding: 24px; }
}

@media (max-width: 480px) {
    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn { width: 100%; justify-content: center; }
    .stat-number { font-size: 2rem; }
}