/* 
===========================================
  HealthCare Plus Clinic Website Theme
===========================================
*/

:root {
    /* Color Palette */
    --primary: #F97316; /* Orange */
    --primary-light: #FFF7ED; /* Soft Orange */
    --primary-hover: #EA580C; /* Darker Orange */
    --secondary: #0F766E; /* Med Teal accident for professional contrast */
    --secondary-light: #F0FDFA;
    
    --text-main: #1E293B;
    --text-muted: #64748B;
    --text-light: #94A3B8;
    
    --bg-main: #FAFAFA;
    --bg-white: #FFFFFF;
    --bg-alt: #F1F5F9;
    
    --border-color: #E2E8F0;
    
    /* Typography */
    --font-family: 'Outfit', sans-serif;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.025);
    --shadow-card: 0 20px 40px -10px rgba(249, 115, 22, 0.05);
    --shadow-glow: 0 10px 30px -10px rgba(249, 115, 22, 0.3);
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-family);
    color: var(--text-main);
    background-color: var(--bg-main);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-padding {
    padding: 6rem 0;
}

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

/* ===========================================
   Typography 
=========================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-main);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 2.75rem); }
h3 { font-size: 1.5rem; }

p {
    color: var(--text-muted);
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.subtitle {
    display: inline-block;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    background: var(--primary-light);
    padding: 0.25rem 1rem;
    border-radius: var(--radius-full);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===========================================
   Buttons
=========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 15px 35px -10px rgba(10, 102, 194, 0.4);
}

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

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

/* ===========================================
   Navigation
=========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: var(--transition);
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    padding: 0.75rem 0;
    background-color: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 100px;
    width: auto;
    object-fit: contain;
    transition: var(--transition);
}

.logo:hover .logo-img {
    transform: scale(1.05);
}

.navbar.scrolled .logo-img {
    height: 70px;
}

.logo-img-footer {
    height: 140px;
    width: auto;
    object-fit: contain;
    transition: var(--transition);
}

.logo:hover .logo-img-footer {
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-main);
    position: relative;
    padding: 0.5rem 0;
}

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.75rem;
    color: var(--text-main);
    cursor: pointer;
}

/* ===========================================
   Hero Section
=========================================== */
.hero {
    position: relative;
    padding-top: 8rem;
    padding-bottom: 4rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg-main) 100%);
}



.hero-container {
    position: relative;
    z-index: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-main);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 2rem;
    background: var(--bg-white);
    padding: 1.5rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    display: inline-flex;
}

.stat-item h3 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.stat-item p {
    font-size: 0.875rem;
    margin-bottom: 0;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background-color: var(--border-color);
}

.hero-image {
    position: relative;
    border-radius: var(--radius-lg);
}

.hero-image img {
    border-radius: var(--radius-lg);
    border: 4px solid var(--bg-white);
    box-shadow: var(--shadow-card);
    transform: rotate(2deg);
    transition: var(--transition);
}

.hero-image:hover img {
    transform: rotate(0deg) scale(1.02);
}

.glass-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-md);
    padding: 1rem 1.5rem;
    box-shadow: var(--shadow-lg);
}

.doctor-card-overlay {
    position: absolute;
    bottom: -30px;
    left: -40px;
    display: flex;
    align-items: center;
    gap: 1rem;
    z-index: 2;
    animation: float 6s ease-in-out infinite;
}

.overlay-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.overlay-text h4 {
    margin-bottom: 0;
    font-size: 1rem;
}

.overlay-text p {
    margin-bottom: 0;
    font-size: 0.875rem;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.service-card {
    background: var(--bg-main);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    border: 1px solid transparent;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0;
    background: linear-gradient(180deg, var(--primary-light) 0%, transparent 100%);
    transition: var(--transition);
    z-index: -1;
    opacity: 0;
}

.service-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-card);
    transform: translateY(0px);
}

.service-card:hover::before {
    height: 100%;
    opacity: 1;
}

.service-icon {
    width: 64px;
    height: 64px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.service-card h3 {
    margin-bottom: 1rem;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    font-weight: 600;
    margin-top: 1rem;
}

.service-link i {
    transition: transform 0.3s ease;
}

.service-card:hover .service-link i {
    transform: translateX(5px);
}

/* ===========================================
   Booking CTA Section
=========================================== */
.booking-cta {
    position: relative;
    background-color: var(--text-main);
    color: white;
}

.booking-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.booking-content h2,
.booking-content p {
    color: white;
}

.booking-content p {
    color: var(--text-light);
}

.booking-perks {
    margin-top: 2rem;
}

.booking-perks li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.booking-perks i {
    color: var(--secondary);
    font-size: 1.5rem;
}

.glass-panel {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 3rem 2.5rem;
}

.glass-panel h3 {
    color: white;
    text-align: center;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-light);
}

.input-with-icon {
    position: relative;
}

.input-with-icon i {
    position: absolute;
    top: 50%;
    left: 1rem;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.25rem;
}

.booking-form input,
.booking-form select {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    color: white;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.booking-form input::placeholder {
    color: var(--text-muted);
}

.booking-form input:focus,
.booking-form select:focus {
    outline: none;
    border-color: var(--secondary);
    background: rgba(255, 255, 255, 0.1);
}

.booking-form select option {
    background: var(--text-main);
    color: white;
}

.form-note {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 1rem;
    margin-bottom: 0;
}

/* ===========================================
   Footer
=========================================== */
.footer {
    background-color: var(--bg-main);
    padding-top: 5rem;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-logo {
    margin-bottom: 1.5rem;
    display: inline-flex;
}

.footer-desc {
    font-size: 1rem;
    margin-bottom: 2rem;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-white);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.25rem;
    box-shadow: var(--shadow-sm);
}

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

.footer-col h4 {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.75rem;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--secondary);
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col ul li a {
    color: var(--text-muted);
}

.footer-col ul li a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.contact-info li {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    color: var(--text-muted);
}

.contact-info i {
    color: var(--primary);
    font-size: 1.25rem;
    margin-top: 0.25rem;
}

.footer-bottom {
    padding: 1.5rem 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    margin-bottom: 0;
    font-size: 0.875rem;
}

/* ===========================================
   Animations (Minimalist - Simple Fade)
=========================================== */
.reveal-fade {
    opacity: 0;
    transition: opacity 0.8s ease;
}

.active.reveal-fade {
    opacity: 1;
}

/* ===========================================
   Symptoms Section (Triệu chứng)
=========================================== */
.bg-alt {
    background-color: var(--bg-alt);
}

.symptoms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
    margin-bottom: 2rem;
}

.symptymptom-card, .symptom-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.symptom-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.symptom-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.symptom-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0;
}

.mt-2 {
    margin-top: 2rem;
}

/* ===========================================
   Floating Contact (Zalo & Phone)
=========================================== */
.floating-contact {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 1000;
}

.float-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    color: white;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.float-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.float-zalo {
    background-color: #0068FF; /* Zalo Blue */
}

.zalo-icon {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.float-call {
    background-color: var(--primary);
}

.phone-ring {
    font-size: 1.25rem;
    animation: ring 2s infinite ease-in-out;
}

@keyframes ring {
    0%, 100% { transform: rotate(0deg); }
    10%, 30%, 50%, 70%, 90% { transform: rotate(-10deg); }
    20%, 40%, 60%, 80% { transform: rotate(10deg); }
}

@media (max-width: 768px) {
    .floating-contact {
        bottom: 1rem;
        right: 1rem;
        gap: 0.75rem;
    }
    
    .float-text {
        display: none; /* Hide text on very small screens to save space */
    }
    
    .float-btn {
        padding: 1rem;
        width: 56px;
        height: 56px;
        border-radius: 50%;
    }
}

/* ===========================================
   Admin Dashboard Table Styles
=========================================== */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.admin-table th, .admin-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    background-color: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
    white-space: nowrap;
}

.admin-table tr:hover {
    background-color: var(--primary-light);
    transition: var(--transition);
}

/* ===========================================
   Responsive Design
=========================================== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        margin: 0 auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-image {
        max-width: 600px;
        margin: 0 auto;
    }
    
    .doctor-card-overlay {
        left: 0;
        bottom: -20px;
    }
    
    .booking-container {
        grid-template-columns: 1fr;
    }
    
    .form-group {
        text-align: left;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-actions .btn {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    /* Mobile Menu Style (when active) */
    .nav-links.mobile-active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        padding: 2rem;
        box-shadow: var(--shadow-md);
        gap: 1.5rem;
        border-top: 1px solid var(--border-color);
        animation: slideDown 0.3s ease forwards;
    }
    
    @keyframes slideDown {
        from { opacity: 0; transform: translateY(-10px); }
        to { opacity: 1; transform: translateY(0); }
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
        width: 100%;
    }
    
    .stat-divider {
        width: 100%;
        height: 1px;
    }
    
    h1 { font-size: 2.5rem; }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}