/* ==============================================
   Tenga Medical Centre - Global Styles
   ============================================== */

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

:root {
    --primary-blue: #2563EB;
    --dark-blue: #1e40af;
    --light-blue: #3b82f6;
    --soft-grey: #F3F4F6;
    --white: #FFFFFF;
    --text-dark: #1F2937;
    --text-grey: #6B7280;
    --border-grey: #E5E7EB;
    --success-green: #10B981;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

button {
    cursor: pointer;
    border: none;
    font-family: inherit;
    transition: all 0.3s ease;
}

/* ==============================================
   Typography
   ============================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', 'Inter', sans-serif;
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-grey);
}

/* ==============================================
   Container & Layout
   ============================================== */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

.section-title p {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ==============================================
   Header & Navigation
   ============================================== */

.header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo img {
    height: 50px;
    width: auto;
    transition: all 0.3s ease;
    filter: drop-shadow(0 2px 8px rgba(102, 126, 234, 0.3));
}

.logo:hover img {
    transform: scale(1.05) rotate(5deg);
    filter: drop-shadow(0 5px 15px rgba(102, 126, 234, 0.5));
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 600;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
}

.nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav a {
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.mobile-menu-toggle {
    display: none;
    background: none;
    font-size: 1.5rem;
    color: var(--primary-blue);
}

/* ==============================================
   Buttons
   ============================================== */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    text-align: center;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background-color: var(--success-green);
    color: var(--white);
}

.btn-secondary:hover {
    background-color: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

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

.btn-icon {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* ==============================================
   Cards
   ============================================== */

.card {
    background-color: var(--white);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s;
}

.card:hover::before {
    left: 100%;
}

.card:hover {
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    transform: translateY(-10px) scale(1.02);
}

.card-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    border-radius: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
    animation: float 3s ease-in-out infinite;
}

.card:hover .card-icon {
    transform: rotateY(360deg) scale(1.1);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.5);
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.card-title {
    font-size: 1.25rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.card-text {
    color: var(--text-grey);
    margin-bottom: 1rem;
}

/* ==============================================
   Hero Section
   ============================================== */

.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    color: var(--white);
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
    animation: gradientShift 15s ease infinite;
    background-size: 200% 200%;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.hero h1 {
    color: var(--white);
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==============================================
   Feature Grid
   ============================================== */

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

/* ==============================================
   Doctor Schedule Table
   ============================================== */

.schedule-filters {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.5rem;
    border-radius: 2rem;
    background-color: var(--soft-grey);
    color: var(--text-dark);
    font-weight: 500;
}

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

.doctor-table-wrapper {
    overflow-x: auto;
    background-color: var(--white);
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
}

.doctor-table {
    width: 100%;
    border-collapse: collapse;
}

.doctor-table thead {
    background-color: var(--primary-blue);
    color: var(--white);
}

.doctor-table th,
.doctor-table td {
    padding: 1rem;
    text-align: left;
}

.doctor-table tbody tr {
    border-bottom: 1px solid var(--border-grey);
}

.doctor-table tbody tr:hover {
    background-color: var(--soft-grey);
}

.doctor-table td {
    color: var(--text-dark);
}

/* ==============================================
   Forms
   ============================================== */

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

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

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-grey);
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* ==============================================
   Google Map
   ============================================== */

.map-container {
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    height: 400px;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

/* ==============================================
   Floating WhatsApp Button
   ============================================== */

.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    color: var(--white);
    width: 65px;
    height: 65px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.5);
    z-index: 999;
    transition: all 0.3s ease;
    animation: pulse-whatsapp 2s ease-in-out infinite;
}

@keyframes pulse-whatsapp {
    0%, 100% {
        box-shadow: 0 8px 25px rgba(37, 211, 102, 0.5);
    }
    50% {
        box-shadow: 0 8px 35px rgba(37, 211, 102, 0.8), 0 0 0 20px rgba(37, 211, 102, 0.1);
    }
}

.whatsapp-float:hover {
    transform: scale(1.15) rotate(5deg);
    box-shadow: 0 15px 40px rgba(37, 211, 102, 0.6);
    animation: none;
}

.whatsapp-float::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: rgba(37, 211, 102, 0.3);
    animation: ping 2s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
    75%, 100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

/* ==============================================
   Footer
   ============================================== */

.footer {
    background-color: var(--text-dark);
    color: var(--white);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
}

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

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* ==============================================
   Responsive Design
   ============================================== */

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .section {
        padding: 3rem 0;
    }

    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow);
        gap: 0;
    }

    .nav.active {
        display: flex;
    }

    .nav a {
        padding: 0.75rem;
        width: 100%;
    }

    .mobile-menu-toggle {
        display: block;
    }

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

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

    .hero-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

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

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

    .schedule-filters {
        flex-direction: column;
    }

    .filter-btn {
        width: 100%;
    }

    .doctor-table {
        font-size: 0.875rem;
    }

    .doctor-table th,
    .doctor-table td {
        padding: 0.75rem 0.5rem;
    }

    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .logo-text {
        font-size: 1rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }
}

/* ==============================================
   Security & Protection
   ============================================== */

/* Disable text selection for images and logo */
img, .logo, .card-icon {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
    pointer-events: auto;
}

/* Disable image dragging */
img {
    -webkit-touch-callout: none;
}

/* Copyright notice */
.copyright-notice {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,0.8);
    color: white;
    text-align: center;
    padding: 0.5rem;
    font-size: 0.75rem;
    z-index: 9999;
    display: none;
}

/* ==============================================
   Utilities
   ============================================== */

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

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

.bg-grey {
    background-color: var(--soft-grey);
}

.mb-1 {
    margin-bottom: 1rem;
}

.mb-2 {
    margin-bottom: 2rem;
}

.mt-1 {
    margin-top: 1rem;
}

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

.hidden {
    display: none;
}

/* ==============================================
   Loading & Animations
   ============================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-slide-left {
    animation: slideInLeft 0.8s ease-out;
}

.animate-slide-right {
    animation: slideInRight 0.8s ease-out;
}

.animate-zoom {
    animation: zoomIn 0.6s ease-out;
}

/* ==============================================
   Print Styles
   ============================================== */

@media print {
    .header,
    .whatsapp-float,
    .footer {
        display: none;
    }
}