/* ===== CSS Custom Properties ===== */
:root {
    --primary: #2196F3;
    --primary-dark: #1976D2;
    --primary-light: #BBDEFB;
    --primary-gradient-start: #1565C0;
    --primary-gradient-end: #42A5F5;
    --white: #ffffff;
    --off-white: #f5f9ff;
    --text-dark: #1a1a2e;
    --text-medium: #444466;
    --text-light: #6b7280;
    --navy: #0d1b3e;
    --navy-light: #162d5a;
    --border: #e0e7f1;
    --shadow: 0 4px 20px rgba(33, 150, 243, 0.12);
    --shadow-lg: 0 10px 40px rgba(33, 150, 243, 0.18);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.3s ease;
    --max-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--white);
}

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

ul { list-style: none; }

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

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

.section {
    padding: 90px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header h2 {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary);
    border-radius: 2px;
}

.section-header p {
    color: var(--text-light);
    font-size: 1.1rem;
    max-width: 560px;
    margin: 20px auto 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 16px rgba(33, 150, 243, 0.35);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(33, 150, 243, 0.45);
}

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

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

/* ===== Scroll Animations ===== */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: box-shadow var(--transition);
}

.header.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-dark);
}

.logo-icon {
    width: 38px;
    height: 38px;
    background: var(--primary);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.1rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-medium);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition);
}

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

.nav-links a:hover::after {
    width: 100%;
}

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

.hamburger span {
    display: block;
    width: 26px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: all var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
    overflow: hidden;
    padding-top: 72px;
}

.hero-bubbles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.bubble {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    animation: floatBubble 8s infinite ease-in-out;
}

.bubble:nth-child(1) { width: 120px; height: 120px; left: 10%; top: 20%; animation-delay: 0s; animation-duration: 7s; }
.bubble:nth-child(2) { width: 80px; height: 80px; left: 25%; top: 60%; animation-delay: 1s; animation-duration: 9s; }
.bubble:nth-child(3) { width: 160px; height: 160px; left: 65%; top: 15%; animation-delay: 2s; animation-duration: 10s; }
.bubble:nth-child(4) { width: 60px; height: 60px; left: 80%; top: 55%; animation-delay: 0.5s; animation-duration: 6s; }
.bubble:nth-child(5) { width: 100px; height: 100px; left: 45%; top: 70%; animation-delay: 3s; animation-duration: 8s; }
.bubble:nth-child(6) { width: 50px; height: 50px; left: 90%; top: 30%; animation-delay: 1.5s; animation-duration: 7.5s; }
.bubble:nth-child(7) { width: 140px; height: 140px; left: 5%; top: 75%; animation-delay: 2.5s; animation-duration: 11s; }
.bubble:nth-child(8) { width: 70px; height: 70px; left: 55%; top: 40%; animation-delay: 4s; animation-duration: 6.5s; }

@keyframes floatBubble {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0.6; }
    50% { transform: translateY(-30px) scale(1.08); opacity: 1; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    max-width: 720px;
    margin: 0 auto;
    padding: 40px 24px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 24px;
    backdrop-filter: blur(8px);
}

.hero h1 {
    font-size: 3.4rem;
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.92;
    margin-bottom: 36px;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
}

.hero .btn-primary {
    background: var(--white);
    color: var(--primary-dark);
    font-size: 1.1rem;
    padding: 16px 40px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
}

.hero .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 36px rgba(0, 0, 0, 0.3);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 56px;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-stats h3 {
    font-size: 2rem;
    font-weight: 800;
}

.hero-stats p {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 0;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all var(--transition);
    border: 1px solid transparent;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.service-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-light), #e3f2fd);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.service-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.service-card p {
    font-size: 0.93rem;
    color: var(--text-light);
    line-height: 1.6;
}

.services-cta {
    text-align: center;
    margin-top: 44px;
}

/* ===== Pricing ===== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    align-items: start;
}

.pricing-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 2px solid var(--border);
    transition: all var(--transition);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border-color: var(--primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-6px);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--white);
    padding: 6px 24px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.pricing-price {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary);
    margin: 16px 0;
}

.pricing-price span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-light);
}

.pricing-features {
    text-align: left;
    margin: 28px 0;
}

.pricing-features li {
    padding: 10px 0;
    font-size: 0.95rem;
    color: var(--text-medium);
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li .check {
    color: var(--primary);
    font-weight: 700;
    font-size: 1.1rem;
}

.pricing-card .btn {
    width: 100%;
    justify-content: center;
}

/* ===== Why Choose Us ===== */
.why-us {
    background: var(--off-white);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.why-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all var(--transition);
}

.why-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.why-icon {
    width: 68px;
    height: 68px;
    margin: 0 auto 18px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--white);
}

.why-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.why-card p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ===== Gallery ===== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.gallery-item {
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    aspect-ratio: 3 / 2;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(13, 27, 62, 0.7), transparent);
    opacity: 0;
    transition: opacity var(--transition);
    display: flex;
    align-items: flex-end;
    padding: 20px;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay span {
    color: var(--white);
    font-weight: 600;
    font-size: 0.95rem;
}

/* ===== Reviews ===== */
.reviews {
    background: var(--off-white);
}

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

.review-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    box-shadow: var(--shadow);
    transition: all var(--transition);
}

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

.review-stars {
    color: #FFC107;
    font-size: 1.2rem;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.review-text {
    font-size: 0.95rem;
    color: var(--text-medium);
    line-height: 1.7;
    margin-bottom: 20px;
    font-style: italic;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.review-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1.1rem;
}

.review-author-info h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
}

.review-author-info p {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ===== Contact ===== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: start;
}

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

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

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text-dark);
    transition: border-color var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

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

.contact-form .btn {
    width: 100%;
    justify-content: center;
    padding: 16px;
    font-size: 1.05rem;
}

.contact-info-card {
    background: linear-gradient(135deg, var(--primary-gradient-start), var(--primary-gradient-end));
    border-radius: var(--radius-lg);
    padding: 40px;
    color: var(--white);
}

.contact-info-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.contact-info-card > p {
    opacity: 0.9;
    font-size: 0.95rem;
    margin-bottom: 32px;
}

.contact-detail {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 24px;
}

.contact-detail-icon {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-detail h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 4px;
    opacity: 0.85;
}

.contact-detail p {
    font-size: 0.95rem;
}

.contact-hours {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-hours h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.contact-hours p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 4px;
}

/* ===== Blog ===== */
.blog {
    background: var(--off-white);
}

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

.blog-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all var(--transition);
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.blog-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.blog-body {
    padding: 24px;
}

.blog-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary-light);
    color: var(--primary-dark);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.blog-body h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.blog-body p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 14px;
}

.blog-link {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

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

/* ===== Footer ===== */
.footer {
    background: var(--navy);
    color: rgba(255, 255, 255, 0.8);
    padding: 72px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--white);
    transition: background var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
}

.footer-col h4 {
    color: var(--white);
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    font-size: 0.9rem;
    opacity: 0.75;
    transition: opacity var(--transition), color var(--transition);
}

.footer-col ul li a:hover {
    opacity: 1;
    color: var(--primary-light);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 14px;
    font-size: 0.9rem;
}

.footer-contact-item span:first-child {
    flex-shrink: 0;
    opacity: 0.7;
}

.footer-newsletter {
    margin-top: 20px;
}

.footer-newsletter p {
    font-size: 0.88rem;
    margin-bottom: 10px;
    opacity: 0.8;
}

.newsletter-form {
    display: flex;
    gap: 8px;
}

.newsletter-form input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--white);
    font-size: 0.9rem;
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.newsletter-form button {
    padding: 10px 18px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition);
}

.newsletter-form button:hover {
    background: var(--primary-dark);
}

.footer-bottom {
    text-align: center;
    padding: 24px 0;
    font-size: 0.85rem;
    opacity: 0.6;
}

/* ===== Responsive - 1024px ===== */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.6rem;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-card.featured {
        transform: scale(1);
    }

    .pricing-card.featured:hover {
        transform: translateY(-6px);
    }

    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-stats {
        gap: 32px;
    }
}

/* ===== Responsive - 768px ===== */
@media (max-width: 768px) {
    .section {
        padding: 64px 0;
    }

    .section-header h2 {
        font-size: 1.9rem;
    }

    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
        transform: translateY(-120%);
        transition: transform var(--transition);
        z-index: 999;
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .hamburger {
        display: flex;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

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

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

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

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

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 28px;
    }

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

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