/* ===================================
   David Okubo MD - Style System
   =================================== */

:root {
    /* Colors */
    --color-primary: #0f766e;
    --color-primary-light: #14b8a6;
    --color-primary-dark: #0d5f59;
    --color-slate-900: #0f172a;
    --color-slate-800: #1e293b;
    --color-slate-700: #334155;
    --color-slate-600: #475569;
    --color-slate-500: #64748b;
    --color-slate-400: #94a3b8;
    --color-slate-300: #cbd5e1;
    --color-slate-200: #e2e8f0;
    --color-slate-100: #f1f5f9;
    --color-slate-50: #f8fafc;
    --color-white: #ffffff;
    --color-accent: #ccfbf1;
    
    /* Typography */
    --font-sans: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Layout */
    --container-max: 1200px;
    --navbar-height: 80px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-slate-800);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-xl);
    }
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-slate-200);
    z-index: 1000;
    transition: box-shadow var(--transition-base);
}

.navbar.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo-mark {
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    border-radius: var(--radius-sm);
    position: relative;
}

.logo-mark::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 2px;
    background: var(--color-white);
    box-shadow: 0 -4px 0 var(--color-white), 0 4px 0 var(--color-white);
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-slate-900);
}

.nav-links {
    display: none;
    list-style: none;
    gap: var(--space-xl);
    align-items: center;
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-slate-600);
    transition: color var(--transition-fast);
}

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

.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-xs);
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--color-slate-700);
    transition: var(--transition-base);
}

.mobile-menu {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-slate-200);
    padding: var(--space-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.mobile-menu a {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-slate-700);
}

@media (min-width: 1024px) {
    .nav-links {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: none;
    }
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(15, 118, 110, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1.5px solid var(--color-primary);
}

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

.btn-text {
    background: transparent;
    color: var(--color-slate-600);
    padding: 0.875rem 0;
}

.btn-text:hover {
    color: var(--color-primary);
}

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

.btn-white:hover {
    background: var(--color-slate-50);
    transform: translateY(-1px);
}

.btn-outline-white {
    background: transparent;
    color: var(--color-white);
    border: 1.5px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
}

.btn-full {
    width: 100%;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    padding-top: calc(var(--navbar-height) + var(--space-3xl));
    padding-bottom: var(--space-3xl);
    background: linear-gradient(135deg, var(--color-slate-50) 0%, var(--color-white) 100%);
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.hero-content {
    max-width: 560px;
}

.hero-eyebrow {
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.hero-headline {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 1.1;
    color: var(--color-slate-900);
    margin-bottom: var(--space-lg);
}

.hero-headline .text-accent {
    color: var(--color-primary);
    font-style: italic;
}

.hero-sub {
    font-size: 1.125rem;
    color: var(--color-slate-600);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
    max-width: 480px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    align-items: center;
}

.hero-image {
    position: relative;
}

.image-frame {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.image-frame::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-lg);
    z-index: -1;
}

.img-main {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.image-accent {
    position: absolute;
    bottom: -30px;
    left: -30px;
    width: 120px;
    height: 120px;
    background: var(--color-primary);
    border-radius: var(--radius-md);
    z-index: -1;
}

.hero-stats {
    display: flex;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-slate-200);
}

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

.stat-number {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--color-slate-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@media (min-width: 1024px) {
    .hero-container {
        grid-template-columns: 1.1fr 0.9fr;
        gap: var(--space-3xl);
    }
    
    .img-main {
        height: 560px;
    }
}

/* ===================================
   Section Shared
   =================================== */
.section-label {
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 400;
    color: var(--color-slate-900);
    line-height: 1.2;
    margin-bottom: var(--space-xl);
}

.section-header {
    margin-bottom: var(--space-2xl);
}

/* ===================================
   Services Section
   =================================== */
.services {
    padding: var(--space-3xl) 0;
    background: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.service-card {
    padding: var(--space-xl);
    background: var(--color-slate-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-slate-200);
    transition: all var(--transition-base);
}

.service-card:hover {
    background: var(--color-white);
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.service-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

.service-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-slate-900);
    margin-bottom: var(--space-sm);
}

.service-card p {
    font-size: 0.9375rem;
    color: var(--color-slate-600);
    line-height: 1.7;
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===================================
   About Section
   =================================== */
.about {
    padding: var(--space-3xl) 0;
    background: var(--color-slate-50);
}

.about-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.about-image {
    position: relative;
}

.img-asymmetric {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

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

.about-text {
    font-size: 1rem;
    color: var(--color-slate-600);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.about-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-slate-700);
}

.feature-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
}

@media (min-width: 1024px) {
    .about-container {
        grid-template-columns: 0.9fr 1.1fr;
        gap: var(--space-3xl);
    }
    
    .img-asymmetric {
        height: 500px;
    }
}

/* ===================================
   Insurance Strip
   =================================== */
.insurance-strip {
    padding: var(--space-2xl) 0;
    background: var(--color-slate-900);
}

.insurance-content {
    margin-bottom: var(--space-lg);
}

.insurance-content h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-white);
    margin-bottom: var(--space-xs);
}

.insurance-content p {
    font-size: 0.9375rem;
    color: var(--color-slate-400);
}

.insurance-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

@media (min-width: 768px) {
    .insurance-content {
        margin-bottom: 0;
    }
    
    .insurance-strip .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    padding: var(--space-3xl) 0;
    background: var(--color-white);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
}

.contact-info {
    max-width: 480px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
}

.detail {
    display: flex;
    gap: var(--space-md);
}

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

.detail h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-slate-900);
    margin-bottom: 4px;
}

.detail p {
    font-size: 0.9375rem;
    color: var(--color-slate-600);
    line-height: 1.6;
}

.detail a {
    color: var(--color-primary);
}

.detail a:hover {
    text-decoration: underline;
}

.contact-form-wrapper {
    background: var(--color-slate-50);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    border: 1px solid var(--color-slate-200);
}

.contact-form-wrapper h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-slate-900);
    margin-bottom: var(--space-lg);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-slate-700);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--color-slate-800);
    background: var(--color-white);
    border: 1.5px solid var(--color-slate-300);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast);
}

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

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

.form-note {
    font-size: 0.8125rem;
    color: var(--color-slate-500);
    margin-top: var(--space-sm);
    text-align: center;
}

.form-success {
    text-align: center;
    padding: var(--space-xl);
}

.success-icon {
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.form-success h4 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-slate-900);
    margin-bottom: var(--space-sm);
}

.form-success p {
    color: var(--color-slate-600);
}

@media (min-width: 1024px) {
    .contact-container {
        grid-template-columns: 1fr 1.1fr;
        gap: var(--space-3xl);
    }
}

/* ===================================
   Footer
   =================================== */
.footer {
    padding: var(--space-2xl) 0;
    background: var(--color-slate-900);
    border-top: 1px solid var(--color-slate-800);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.footer-brand h3 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: var(--color-white);
    margin-bottom: 4px;
}

.footer-brand p {
    font-size: 0.875rem;
    color: var(--color-slate-400);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--color-slate-400);
}

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

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-slate-800);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--color-slate-500);
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}