/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    /* colors */
    --color-primary: #0B4F6C;      /* deep teal / rich dental blue */
    --color-primary-dark: #083B50;
    --color-secondary: #E8A87C;    /* warm sand / accent */
    --color-accent: #F4B37A;       /* gentle gold */
    --color-bg-light: #FFF8F2;     /* soft cream background */
    --color-bg-white: #FFFFFF;
    --color-text: #1E2A32;
    --color-text-light: #4B5E6B;
    --color-border: rgba(11, 79, 108, 0.12);
    --color-glass: rgba(255, 248, 242, 0.70);
    --color-glass-border: rgba(255, 255, 255, 0.25);
    --shadow-card: 0 12px 28px -8px rgba(0, 32, 48, 0.08), 0 4px 12px rgba(0,0,0,0.02);
    --shadow-hover: 0 24px 48px -12px rgba(11, 79, 108, 0.18);

    /* fonts */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;

    /* radii */
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 10px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-bg-light);
    color: var(--color-text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.01em;
}

a {
    text-decoration: none;
    color: inherit;
}

img, .image-placeholder {
    display: block;
    max-width: 100%;
}

/* ===== KEYFRAME ANIMATIONS ===== */
@keyframes fadeInUp {
    0% { opacity: 0; transform: translateY(24px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* apply fade to sections */
section {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* ===== CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 80px 0;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    color: var(--color-secondary);
    background: rgba(232, 168, 124, 0.12);
    padding: 6px 16px;
    border-radius: 40px;
    margin-bottom: 12px;
    backdrop-filter: blur(2px);
    border: 1px solid rgba(232, 168, 124, 0.2);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 2.4rem;
    color: var(--color-primary-dark);
}

/* ===== GLASS NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 0 24px;
    background: var(--color-glass);
    backdrop-filter: blur(14px) saturate(180%);
    -webkit-backdrop-filter: blur(14px) saturate(180%);
    border-bottom: 1px solid var(--color-glass-border);
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    z-index: 1000;
    transition: background 0.25s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.02em;
    transition: opacity 0.2s;
}

.nav-logo:hover {
    opacity: 0.85;
}

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

.nav-links li a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--color-text-light);
    padding: 6px 0;
    border-bottom: 2px solid transparent;
    transition: border-color 0.2s, color 0.2s;
    letter-spacing: 0.3px;
}

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

/* hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    padding: 6px;
    z-index: 1001;
}

.hamburger span {
    width: 26px;
    height: 2.5px;
    background: var(--color-primary);
    border-radius: 10px;
    transition: 0.3s ease;
}

.hamburger.toggle span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.toggle span:nth-child(2) {
    opacity: 0;
}
.hamburger.toggle span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ===== HERO ===== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(145deg, #0f2d3d 0%, #1c4b62 40%, #2b647c 100%);
    overflow: hidden;
    padding: 120px 24px 80px;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 40%, rgba(232, 168, 124, 0.10) 0%, transparent 60%),
                radial-gradient(circle at 80% 70%, rgba(255,255,255,0.04) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 860px;
    color: #fff;
    animation: fadeInUp 0.9s ease;
}

.hero-badge {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 500;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(4px);
    padding: 8px 22px;
    border-radius: 60px;
    margin-bottom: 28px;
    border: 1px solid rgba(255,255,240,0.15);
    letter-spacing: 0.5px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.8rem, 10vw, 5.2rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 16px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.hero-tagline {
    font-size: 1.2rem;
    opacity: 0.8;
    margin-bottom: 36px;
    font-weight: 300;
    letter-spacing: 0.3px;
    background: rgba(0,0,0,0.1);
    display: inline-block;
    padding: 6px 24px;
    border-radius: 40px;
    backdrop-filter: blur(2px);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 18px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 34px;
    border-radius: 60px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
    border: 2px solid transparent;
    background: transparent;
}

.btn-primary {
    background: var(--color-secondary);
    color: #0A2A3A;
    border-color: var(--color-secondary);
    box-shadow: 0 4px 12px rgba(232,168,124,0.25);
}

.btn-primary:hover {
    background: #dC9A6A;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 24px rgba(232,168,124,0.35);
}

.btn-ghost {
    border: 2px solid rgba(255,255,240,0.5);
    color: #fff;
    background: rgba(255,255,255,0.03);
    backdrop-filter: blur(2px);
}

.btn-ghost:hover {
    background: rgba(255,255,255,0.12);
    border-color: #fff;
    transform: translateY(-3px);
}

/* ===== ABOUT ===== */
.about-section {
    background: var(--color-bg-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image-frame {
    position: relative;
}

.image-placeholder {
    background: linear-gradient(145deg, #E0E9EF, #C5D7E2);
    border-radius: var(--radius-lg);
    height: 360px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(255,255,255,0.4);
    transition: transform 0.3s ease;
}

.image-placeholder:hover {
    transform: scale(1.01);
}

.frame-decoration {
    position: absolute;
    top: -16px;
    left: -16px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--color-secondary);
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0.3;
}

.about-text h2 {
    font-size: 2.3rem;
    color: var(--color-primary-dark);
    margin-bottom: 16px;
    line-height: 1.2;
}

.about-text p {
    color: var(--color-text-light);
    margin-bottom: 16px;
    font-size: 1rem;
    line-height: 1.6;
}

.stats-row {
    display: flex;
    gap: 32px;
    margin-top: 28px;
}

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

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

/* ===== SERVICES ===== */
.services-section {
    background: var(--color-bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    padding: 32px 24px 28px;
    box-shadow: var(--shadow-card);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid rgba(11, 79, 108, 0.04);
    text-align: center;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-secondary);
}

.card-img {
    font-size: 3.4rem;
    margin-bottom: 12px;
    background: rgba(232, 168, 124, 0.08);
    width: 80px;
    height: 80px;
    border-radius: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    margin-right: auto;
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--color-primary-dark);
}

.service-card p {
    color: var(--color-text-light);
    font-size: 0.9rem;
    line-height: 1.5;
    flex: 1;
    margin-bottom: 16px;
}

.card-price {
    font-weight: 700;
    color: var(--color-primary);
    background: rgba(11, 79, 108, 0.04);
    padding: 6px 14px;
    border-radius: 40px;
    display: inline-block;
    font-size: 0.9rem;
    border: 1px solid rgba(11, 79, 108, 0.08);
    align-self: center;
}

/* ===== CONTACT ===== */
.contact-section {
    background: var(--color-bg-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px 60px;
    align-items: start;
}

.contact-info h2 {
    font-size: 2.3rem;
    color: var(--color-primary-dark);
    margin-bottom: 28px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    gap: 18px;
    align-items: flex-start;
}

.contact-icon {
    font-size: 1.6rem;
    min-width: 36px;
    margin-top: 2px;
}

.contact-item div {
    font-size: 0.95rem;
    color: var(--color-text-light);
}

.contact-item strong {
    color: var(--color-text);
    font-weight: 600;
}

.map-placeholder {
    background: #E4EDF2;
    border-radius: var(--radius-lg);
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(255,255,255,0.3);
    transition: transform 0.2s;
}

.map-placeholder:hover {
    transform: scale(1.01);
}

.map-inner {
    text-align: center;
    padding: 16px;
}

.map-emoji {
    font-size: 2.8rem;
    display: block;
    margin-bottom: 8px;
}

.map-address {
    font-weight: 600;
    color: var(--color-primary-dark);
    font-size: 1.1rem;
}

.map-link {
    display: inline-block;
    margin-top: 12px;
    background: var(--color-primary);
    color: #fff;
    padding: 10px 24px;
    border-radius: 60px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: 0.2s;
    border: 1px solid rgba(255,255,255,0.1);
}

.map-link:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--color-primary-dark);
    color: rgba(255,255,245,0.9);
    padding: 48px 0 32px;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    letter-spacing: -0.02em;
}

.footer-tagline {
    font-size: 1rem;
    opacity: 0.7;
    margin-bottom: 8px;
}

.footer-motto {
    font-size: 0.95rem;
    opacity: 0.6;
    font-style: italic;
}

.footer-copy {
    font-size: 0.8rem;
    opacity: 0.5;
    margin-top: 16px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .about-image-frame {
        order: -1;
    }
    .services-grid {
        grid-template-columns: 1fr 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .map-placeholder {
        height: 260px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        width: 70%;
        max-width: 320px;
        height: 100vh;
        background: rgba(255, 248, 242, 0.96);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 32px 40px;
        gap: 2rem;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        box-shadow: -6px 0 30px rgba(0,0,0,0.05);
        border-left: 1px solid rgba(255,255,255,0.3);
        z-index: 999;
    }
    .nav-links.nav-active {
        transform: translateX(0);
    }
    .hamburger {
        display: flex;
    }
    .hero-title {
        font-size: 2.6rem;
    }
    .hero-tagline {
        font-size: 1rem;
    }
    .services-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .stats-row {
        flex-wrap: wrap;
        gap: 20px;
    }
    .stat-number {
        font-size: 1.8rem;
    }
    .section-header h2 {
        font-size: 2rem;
    }
    .about-text h2 {
        font-size: 2rem;
    }
    .contact-info h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 0 16px;
    }
    .nav-logo {
        font-size: 1.4rem;
    }
    .hero-section {
        padding: 100px 16px 60px;
    }
    .hero-title {
        font-size: 2.2rem;
    }
    .btn {
        padding: 12px 24px;
        font-size: 0.85rem;
    }
    .section {
        padding: 56px 0;
    }
    .image-placeholder {
        height: 240px;
        font-size: 3.6rem;
    }
}