/* ============================================
   WAH JOHN C — Medical & Health Website
   Classic & Elegant Design
   Midnight Blue + Mint Palette
   ============================================ */

/* CSS Custom Properties */
:root {
    --midnight-950: #050d1a;
    --midnight-900: #0a1628;
    --midnight-800: #0f2035;
    --midnight-700: #162d4a;
    --midnight-600: #1e3d63;
    --midnight-500: #264d7a;
    --mint-400: #4ade80;
    --mint-300: #86efac;
    --mint-200: #bbf7d0;
    --cream-50: #f8fafc;
    --cream-100: #f1f5f9;
    --cream-200: #e2e8f0;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --white: #ffffff;
    
    --font-serif: 'Crimson Text', Georgia, serif;
    --font-sans: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.08);
    --shadow-md: 0 4px 20px rgba(10, 22, 40, 0.1);
    --shadow-lg: 0 10px 40px rgba(10, 22, 40, 0.12);
    --shadow-xl: 0 20px 60px rgba(10, 22, 40, 0.15);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--midnight-900);
    background-color: var(--cream-50);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.2;
    color: var(--midnight-900);
}

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

.text-mint {
    color: var(--mint-400);
}

.section {
    padding: 100px 0;
}

.section-label {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--mint-400);
    display: block;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 24px;
    color: var(--midnight-900);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--slate-600);
    max-width: 560px;
    line-height: 1.7;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 8px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--mint-400);
    color: var(--midnight-900);
}

.btn-primary:hover {
    background: var(--mint-300);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(74, 222, 128, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 1.5px solid rgba(255, 255, 255, 0.4);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
    justify-content: center;
    padding: 16px 28px;
    font-size: 1rem;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: var(--transition);
    padding: 20px 0;
}

.navbar.scrolled {
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1001;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--mint-400);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--midnight-900);
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--white);
}

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

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--mint-400);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--white);
}

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

.nav-cta {
    background: var(--mint-400);
    color: var(--midnight-900);
    padding: 10px 22px;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
}

.nav-cta:hover {
    background: var(--mint-300);
    transform: translateY(-1px);
}

/* Mobile Menu Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    position: relative;
    transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

.hamburger::before { top: -7px; }
.hamburger::after { bottom: -7px; }

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    bottom: 0;
    transform: rotate(-45deg);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 120px 24px 80px;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        var(--midnight-950) 0%,
        var(--midnight-800) 30%,
        var(--midnight-700) 60%,
        #0d3b30 100%
    );
    z-index: 0;
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(74, 222, 128, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(74, 222, 128, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(74, 222, 128, 0.04) 0%, transparent 70%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(74, 222, 128, 0.1);
    border: 1px solid rgba(74, 222, 128, 0.2);
    padding: 8px 20px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--mint-300);
    margin-bottom: 32px;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--mint-400);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 600;
    color: var(--white);
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    max-width: 600px;
    margin: 0 auto 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    justify-content: center;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
}

.stat-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.4), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================
   ABOUT
   ============================================ */
.about {
    background: var(--cream-50);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
}

.about-image-frame {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 120px;
    height: 120px;
    background: var(--mint-400);
    border-radius: 16px;
    z-index: -1;
}

.about-content {
    max-width: 520px;
}

.about-text {
    font-size: 1.05rem;
    color: var(--slate-600);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-features {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--midnight-800);
}

.feature-item svg {
    color: var(--mint-400);
    flex-shrink: 0;
}

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

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

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

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

.service-card {
    background: var(--cream-50);
    border-radius: 16px;
    padding: 36px 28px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.service-card:hover {
    background: var(--white);
    border-color: rgba(74, 222, 128, 0.2);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-icon {
    width: 56px;
    height: 56px;
    background: rgba(74, 222, 128, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--mint-400);
    margin-bottom: 20px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--mint-400);
    color: var(--midnight-900);
}

.service-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--midnight-900);
}

.service-description {
    font-size: 0.925rem;
    color: var(--slate-600);
    line-height: 1.7;
}

/* ============================================
   WHY US
   ============================================ */
.why-us {
    background: linear-gradient(135deg, var(--midnight-900) 0%, var(--midnight-800) 100%);
    padding: 100px 0;
}

.why-us-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.why-us-content .section-title {
    color: var(--white);
}

.why-us-text {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.8;
    margin-bottom: 40px;
}

.difference-list {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.difference-item {
    display: flex;
    gap: 20px;
}

.diff-number {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 600;
    color: var(--mint-400);
    line-height: 1;
    flex-shrink: 0;
}

.diff-content h4 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--white);
    margin-bottom: 8px;
}

.diff-content p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.7;
}

.why-us-image {
    position: relative;
}

.image-collage {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    position: relative;
}

.image-collage img {
    border-radius: 12px;
    object-fit: cover;
    box-shadow: var(--shadow-lg);
}

.image-collage img:first-child {
    width: 100%;
    height: 500px;
}

.image-collage img:last-child {
    width: 80%;
    height: 350px;
    margin-left: auto;
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    background: var(--cream-50);
}

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

.contact-info .section-title {
    margin-bottom: 16px;
}

.contact-text {
    font-size: 1.05rem;
    color: var(--slate-600);
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 32px;
}

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

.contact-icon {
    width: 48px;
    height: 48px;
    background: rgba(74, 222, 128, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--mint-400);
    flex-shrink: 0;
}

.contact-text-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--slate-500);
}

.contact-value {
    font-size: 1rem;
    color: var(--midnight-800);
    font-weight: 500;
}

.contact-link:hover {
    color: var(--mint-400);
}

.contact-map {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* Form */
.form-card {
    background: var(--white);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.form-title {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    margin-bottom: 8px;
}

.form-subtitle {
    font-size: 0.9rem;
    color: var(--slate-500);
    margin-bottom: 32px;
}

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

.form-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--slate-600);
    margin-bottom: 8px;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1.5px solid var(--cream-200);
    border-radius: 10px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--midnight-900);
    background: var(--cream-50);
    transition: var(--transition);
    outline: none;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--mint-400);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(74, 222, 128, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--slate-400);
}

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

.form-success {
    text-align: center;
    padding: 40px 20px;
}

.success-icon {
    width: 72px;
    height: 72px;
    background: rgba(74, 222, 128, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--mint-400);
}

.form-success h4 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.form-success p {
    font-size: 0.95rem;
    color: var(--slate-600);
    line-height: 1.7;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--midnight-950);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .footer-logo {
    margin-bottom: 16px;
}

.footer-tagline {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
    max-width: 300px;
}

.footer-heading {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--white);
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links a:hover {
    color: var(--mint-400);
}

.footer-contact p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 8px;
}

.footer-phone {
    color: var(--mint-400) !important;
    font-weight: 500;
}

.footer-phone:hover {
    color: var(--mint-300) !important;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.35);
}

.footer-note {
    font-size: 0.75rem !important;
}

/* ============================================
   SCROLL REVEAL
   ============================================ */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 1;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-up {
    transform: translateY(0);
}

.reveal-left {
    transform: translateX(0);
}

.reveal-right {
    transform: translateX(0);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        transform: translateY(30px);
        opacity: 0;
    }
    .reveal-left {
        transform: translateX(-30px);
        opacity: 0;
    }
    .reveal-right {
        transform: translateX(30px);
        opacity: 0;
    }
    
    .reveal-up.revealed,
    .reveal-left.revealed,
    .reveal-right.revealed {
        opacity: 1;
        transform: translate(0);
    }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .about-grid,
    .why-us-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .image-collage img:first-child {
        height: 400px;
    }
    
    .image-collage img:last-child {
        height: 280px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--midnight-900);
        flex-direction: column;
        justify-content: center;
        gap: 24px;
        padding: 40px;
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.3);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-link {
        font-size: 1.1rem;
    }
    
    .hero {
        padding: 100px 20px 60px;
    }
    
    .hero-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        gap: 20px;
    }
    
    .stat-divider {
        display: none;
    }
    
    .section {
        padding: 72px 0;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-accent {
        display: none;
    }
    
    .image-collage {
        grid-template-columns: 1fr;
    }
    
    .image-collage img:first-child,
    .image-collage img:last-child {
        width: 100%;
        height: 300px;
        margin-left: 0;
    }
    
    .form-card {
        padding: 28px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-badge {
        font-size: 0.7rem;
        padding: 6px 14px;
    }
    
    .service-card {
        padding: 28px 22px;
    }
}