/* Global Styles - Unified Theme for Metro Hospital */

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

:root {
    --font-primary: 'Roboto', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
    --color-primary: #1976A5;
    --color-primary-dark: #155a8a;
    --color-primary-light: #2196F3;
    --color-dark: #0d141a;
    --color-gray: #565E5E;
    --color-gray-light: #e0e0e0;
    --color-white: #ffffff;
    --color-light-bg: #E6F7FA;
    --color-footer: #1A2A36;
    --color-success: #28a745;
    --color-error: #dc3545;
    --shadow-sm: 0 2px 5px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 12px 24px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    line-height: 1.6;
    color: var(--color-dark);
    background: var(--color-white);
}

/* ==================== TYPOGRAPHY ==================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.3;
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    line-height: 1.8;
}

/* ==================== HEADER & NAVIGATION ==================== */
header {
    background: var(--color-white);
    padding: 1.5rem 2rem;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1240px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

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

.logo img {
    height: 50px;
    display: block;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--color-dark);
    font-weight: 400;
    transition: var(--transition);
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
}

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

/* ==================== HERO SECTION ==================== */
.hero {
    position: relative;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    color: var(--color-white);
    padding: 4rem 2rem;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(rgba(0,0,0,0.45), rgba(0,0,0,0.45));
    z-index: 1;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

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

.hero h1 {
    font-size: 3rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.1rem;
    margin-top: 1rem;
}

/* ==================== BUTTONS ==================== */
.btn, button {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-family: var(--font-primary);
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

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

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

/* ==================== CARDS ==================== */
.card {
    background: var(--color-white);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    padding: 2rem;
    background: var(--color-light-bg);
}

.card-body {
    padding: 2rem;
}

.card-footer {
    padding: 1.5rem 2rem;
    background: var(--color-light-bg);
    border-top: 1px solid var(--color-gray-light);
}

/* ==================== SECTIONS ==================== */
section {
    padding: 6rem 2rem;
}

section > h2 {
    text-align: center;
    margin-bottom: 1rem;
}

.section-intro {
    text-align: center;
    color: var(--color-gray);
    max-width: 700px;
    margin: 0 auto 4rem;
    font-size: 1rem;
    line-height: 1.8;
}

/* ==================== GRIDS ==================== */
.grid {
    display: grid;
    gap: 2rem;
    max-width: 1240px;
    margin: 0 auto;
}

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

/* ==================== SERVICE/FEATURE CARDS ==================== */
.service-card {
    background: var(--color-light-bg);
    padding: 2.5rem 2rem;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
    border-left: 4px solid var(--color-primary);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--color-primary-light);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--color-dark);
}

.service-card p {
    color: var(--color-gray);
}

/* ==================== INFO BLOCKS ==================== */
.info-block {
    background: var(--color-light-bg);
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--color-primary);
}

.info-block h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.info-block p {
    color: var(--color-gray);
}

/* ==================== FORMS ==================== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-group label .required {
    color: var(--color-error);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 2px solid var(--color-gray-light);
    border-radius: 6px;
    font-family: var(--font-secondary);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(25, 118, 165, 0.1);
}

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

.form-message {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 500;
    display: none;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

/* ==================== FOOTER ==================== */
footer {
    background: var(--color-footer);
    color: var(--color-white);
    padding: 3rem 1rem 1.5rem;
}

footer-content {
    max-width: 1240px;
    margin: 0 auto;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto 2rem;
    align-items: start;
}

.footer-container > div {
    display: flex;
    flex-direction: column;
}

.footer-container h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--color-white);
}

.footer-container p {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

.footer-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.footer-form input[type="email"] {
    padding: 0.75rem;
    border: 1px solid rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.1);
    color: var(--color-white);
    border-radius: 4px;
    font-size: 0.95rem;
}

.footer-form input[type="email"]::placeholder {
    color: rgba(255,255,255,0.6);
}

.footer-form button {
    padding: 0.75rem 1.5rem;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 4px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.footer-form button:hover {
    background: #145a82;
    transform: translateY(-2px);
}

.copyright {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1.5rem;
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.7);
    max-width: 1200px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #b0c4de;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--color-white);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    text-align: center;
    color: #b0c4de;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: var(--color-white);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--color-primary);
    transform: translateY(-3px);
}

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 1024px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-container,
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    h3 {
        font-size: 1.2rem;
    }
    
    section {
        padding: 4rem 1.5rem;
    }
    
    .hero {
        min-height: 300px;
        padding: 3rem 1.5rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 0.95rem;
    }
    
    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .footer-container,
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    .nav-links a {
        font-size: 0.9rem;
    }
    
    .section-intro {
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
    }
    
    h2 {
        font-size: 1.3rem;
    }
    
    section {
        padding: 2rem 1rem;
    }
    
    .btn {
        padding: 0.7rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .grid {
        gap: 1.5rem;
    }
}

/* ==================== UTILITY CLASSES ==================== */
.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

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

.text-gray {
    color: var(--color-gray);
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mt-4 { margin-top: 4rem; }

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.mb-4 { margin-bottom: 4rem; }

.p-1 { padding: 1rem; }
.p-2 { padding: 2rem; }
.p-3 { padding: 3rem; }

.rounded { border-radius: 6px; }
.rounded-lg { border-radius: 12px; }
.rounded-full { border-radius: 999px; }

.shadow { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }