/* ========================================
   PREMIUM DENTIST WEBSITE - STYLE.CSS
   Apple-style minimal design with premium UX
   ======================================== */

/* ========================================
   RESET & BASE STYLES
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
    color: #1d1d1d;
    background-color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    letter-spacing: -0.03em;
}

h2 {
    font-size: 2.5rem;
    letter-spacing: -0.02em;
}

h3 {
    font-size: 1.75rem;
    letter-spacing: -0.01em;
}

h4 {
    font-size: 1.3rem;
}

p {
    font-size: 1rem;
    color: #424245;
    margin-bottom: 1rem;
}

a {
    color: #0071e3;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #0077d9;
}

/* ========================================
   CONTAINER & SECTIONS
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
    overflow: hidden;
}

.section-dark {
    background-color: #f5f5f5;
}

.section-light {
    background-color: #ffffff;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

header.scrolled {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1d1d1d;
    letter-spacing: -0.02em;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 40px;
}

nav ul li a {
    color: #1d1d1d;
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: #0071e3;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #0071e3;
    transition: width 0.3s ease;
}

nav ul li a:hover::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    gap: 15px;
}

.nav-cta button {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.nav-cta .btn-outline {
    background-color: transparent;
    color: #0071e3;
    border: 1px solid #0071e3;
}

.nav-cta .btn-outline:hover {
    background-color: #0071e3;
    color: #ffffff;
}

.nav-cta .btn-primary {
    background-color: #0071e3;
    color: #ffffff;
}

.nav-cta .btn-primary:hover {
    background-color: #0077d9;
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: #1d1d1d;
    transition: all 0.3s ease;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    margin-top: 60px;
    min-height: calc(100vh - 60px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafb 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 113, 227, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-content {
    max-width: 700px;
    text-align: center;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.8s ease;
}

.hero-content h1 {
    margin-bottom: 20px;
    color: #1d1d1d;
}

.hero-content p {
    font-size: 1.25rem;
    color: #424245;
    margin-bottom: 30px;
}

.trust-badges {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin: 40px 0;
    flex-wrap: wrap;
}

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

.trust-badge .number {
    font-size: 2rem;
    font-weight: 700;
    color: #0071e3;
    display: block;
}

.trust-badge .label {
    font-size: 0.9rem;
    color: #424245;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 40px;
    flex-wrap: wrap;
}

/* ========================================
   BUTTONS - UNIVERSAL STYLES
   ======================================== */
.btn {
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background-color: #0071e3;
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(0, 113, 227, 0.3);
}

.btn-primary:hover {
    background-color: #0077d9;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 113, 227, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: #0071e3;
    border: 2px solid #0071e3;
}

.btn-secondary:hover {
    background-color: #0071e3;
    color: #ffffff;
}

.btn-success {
    background-color: #28a745;
    color: #ffffff;
}

.btn-success:hover {
    background-color: #218838;
    transform: translateY(-2px);
}

.btn-small {
    padding: 10px 20px;
    font-size: 0.9rem;
}

/* ========================================
   ABOUT DOCTOR SECTION
   ======================================== */
.about {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.about-image::before {
    content: '';
    position: absolute;
    inset: -20px;
    background: linear-gradient(135deg, #0071e3 0%, #00d4ff 100%);
    border-radius: 12px;
    z-index: -1;
    opacity: 0.1;
}

.about-content h2 {
    margin-bottom: 20px;
}

.about-content .subtitle {
    color: #0071e3;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 10px;
}

.qualifications {
    margin-top: 30px;
}

.qualification-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 20px;
}

.qualification-item::before {
    content: '✓';
    color: #28a745;
    font-weight: bold;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.qualification-item p {
    margin: 0;
}

/* ========================================
   SERVICES SECTION
   ======================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background-color: #ffffff;
    padding: 40px 30px;
    border-radius: 12px;
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 113, 227, 0.05) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: #0071e3;
}

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

.service-icon {
    width: 60px;
    height: 60px;
    background-color: #f0f8ff;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    background-color: #0071e3;
    color: #ffffff;
    transform: scale(1.1);
}

.service-card h3 {
    margin-bottom: 15px;
}

.service-card p {
    font-size: 0.95rem;
    color: #666;
}

/* ========================================
   GALLERY SECTION
   ======================================== */
.gallery-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.gallery-tab-btn {
    padding: 10px 25px;
    border: 2px solid #e0e0e0;
    background-color: transparent;
    color: #1d1d1d;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.gallery-tab-btn.active {
    background-color: #0071e3;
    color: #ffffff;
    border-color: #0071e3;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    cursor: pointer;
    aspect-ratio: 1;
}

.gallery-item img,
.gallery-item video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover img,
.gallery-item:hover video {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay-icon {
    color: #ffffff;
    font-size: 3rem;
}

/* ========================================
   LIGHTBOX MODAL
   ======================================== */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 90vh;
    animation: zoomIn 0.3s ease;
}

.lightbox-content img,
.lightbox-content video {
    max-width: 100%;
    max-height: 90vh;
    border-radius: 10px;
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    color: #ffffff;
    font-size: 2rem;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.lightbox-close:hover {
    transform: scale(1.2);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: #ffffff;
    font-size: 2rem;
    cursor: pointer;
    padding: 20px;
    transition: transform 0.3s ease;
}

.lightbox-nav:hover {
    transform: translateY(-50%) scale(1.2);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

/* ========================================
   TESTIMONIALS SECTION
   ======================================== */
.testimonials-slider {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.testimonial-item {
    display: none;
    text-align: center;
    animation: fadeIn 0.5s ease;
}

.testimonial-item.active {
    display: block;
}

.testimonial-item .stars {
    display: flex;
    justify-content: center;
    gap: 5px;
    margin-bottom: 20px;
}

.star {
    color: #ffc107;
    font-size: 1.2rem;
}

.testimonial-text {
    font-size: 1.1rem;
    font-style: italic;
    color: #424245;
    margin-bottom: 20px;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #0071e3;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-weight: 600;
}

.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #e0e0e0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background-color: #0071e3;
    width: 30px;
    border-radius: 5px;
}

/* ========================================
   APPOINTMENT BOOKING SECTION
   ======================================== */
.appointment-form {
    max-width: 600px;
    margin: 0 auto;
    background-color: #f8fafb;
    padding: 40px;
    border-radius: 12px;
    border: 1px solid #e0e0e0;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #1d1d1d;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0071e3;
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.1);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-message {
    padding: 12px 15px;
    border-radius: 6px;
    margin-bottom: 20px;
    display: none;
    animation: slideDown 0.3s ease;
}

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

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

/* ========================================
   WHY CHOOSE US SECTION
   ======================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-item {
    text-align: center;
    padding: 30px 20px;
}

.feature-icon {
    width: 70px;
    height: 70px;
    background-color: #f0f8ff;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2.5rem;
}

.feature-item h3 {
    margin-bottom: 15px;
}

/* ========================================
   FAQ SECTION
   ======================================== */
.faq-list {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid #e0e0e0;
    padding: 20px 0;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    padding: 15px 0;
    font-weight: 600;
    color: #1d1d1d;
    transition: color 0.3s ease;
}

.faq-question:hover {
    color: #0071e3;
}

.faq-toggle {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f0f0f0;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.faq-item.active .faq-toggle {
    background-color: #0071e3;
    color: #ffffff;
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    color: #666;
    padding: 0;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 15px 0;
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin: 50px 0;
}

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

.contact-icon {
    width: 60px;
    height: 60px;
    background-color: #f0f8ff;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 1.8rem;
}

.contact-item h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.contact-item p {
    margin: 0;
}

.contact-item a {
    font-weight: 600;
}

.google-map {
    margin-top: 40px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.google-map iframe {
    width: 100%;
    height: 400px;
    border: none;
}

/* ========================================
   FOOTER
   ======================================== */
footer {
    background-color: #1d1d1d;
    color: #ffffff;
    padding: 60px 0 20px;
}

footer .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

footer h4 {
    margin-bottom: 20px;
    color: #ffffff;
}

footer ul {
    list-style: none;
}

footer ul li {
    margin-bottom: 12px;
}

footer ul li a {
    color: #b0b0b0;
    transition: color 0.3s ease;
}

footer ul li a:hover {
    color: #0071e3;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: #333;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    color: #b0b0b0;
}

.social-links a:hover {
    background-color: #0071e3;
    color: #ffffff;
    transform: translateY(-5px);
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 20px;
    text-align: center;
    color: #b0b0b0;
}

/* ========================================
   WHATSAPP FLOATING BUTTON
   ======================================== */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 999;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    transition: all 0.3s ease;
    text-decoration: none;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(37, 211, 102, 0.6);
}

.whatsapp-btn svg {
    width: 30px;
    height: 30px;
    fill: #ffffff;
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.section {
    animation: fadeInUp 0.6s ease-out;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
    .about,
    .form-row {
        grid-template-columns: 1fr;
    }

    nav ul {
        gap: 25px;
    }

    h1 {
        font-size: 2.8rem;
    }

    h2 {
        font-size: 2rem;
    }

    .section {
        padding: 60px 0;
    }
}

@media (max-width: 768px) {
    nav ul {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: #ffffff;
        border-bottom: 1px solid #e0e0e0;
        gap: 0;
        padding: 20px 0;
    }

    nav ul.active {
        display: flex;
    }

    nav ul li a {
        padding: 15px 20px;
        display: block;
        border-radius: 0;
    }

    .menu-toggle {
        display: flex;
    }

    .nav-cta {
        display: none;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.3rem;
    }

    .hero {
        min-height: calc(100vh - 60px);
        padding: 40px 0;
    }

    .trust-badges {
        gap: 20px;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .cta-buttons .btn {
        width: 100%;
    }

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

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .appointment-form {
        padding: 25px;
    }

    .section {
        padding: 40px 0;
    }

    footer .container {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .lightbox-nav {
        font-size: 1.5rem;
        padding: 10px;
    }

    .lightbox-prev {
        left: 10px;
    }

    .lightbox-next {
        right: 10px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    p {
        font-size: 0.95rem;
    }

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

    .trust-badges {
        flex-direction: column;
        gap: 15px;
    }

    .features-grid {
        gap: 20px;
    }

    .contact-grid {
        gap: 25px;
    }

    .whatsapp-btn {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }

    .whatsapp-btn svg {
        width: 25px;
        height: 25px;
    }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */
:focus-visible {
    outline: 2px solid #0071e3;
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
    header,
    .whatsapp-btn,
    .cta-buttons {
        display: none;
    }

    body {
        background-color: #ffffff;
        color: #000;
    }

    a {
        text-decoration: underline;
    }
}