:root {
    /* Color Palette - Luxury Beauty Theme */
    --primary: #0ea5e9;
    --primary-light: #38bdf8;
    --primary-dark: #0284c7;
    --secondary: #3b82f6;
    --secondary-light: #60a5fa;
    --accent: #06b6d4;
    --accent-light: #22d3ee;

    /* Gradients */
    --gradient-main: linear-gradient(135deg, #0ea5e9 0%, #3b82f6 50%, #3b82f6 100%);
    --gradient-hero: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    --gradient-cta: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
    --gradient-button: linear-gradient(135deg, #0ea5e9 0%, #3b82f6 100%);

    /* Neutrals */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --dark: #0a0a0f;

    /* Status Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;

    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Outfit', 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 40px rgba(14, 165, 233, 0.3);
    --shadow-glow-pink: 0 0 40px rgba(59, 130, 246, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

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

body {
    font-family: var(--font-main);
    background: var(--dark);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: 1.25rem;
}

p {
    color: var(--gray-300);
    font-size: 1.125rem;
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 60px rgba(14, 165, 233, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.btn-whatsapp {
    background: #25D366;
    color: var(--white);
}

.btn-whatsapp:hover {
    background: #20bd5a;
    transform: translateY(-3px);
    box-shadow: 0 0 40px rgba(37, 211, 102, 0.4);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.125rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-base);
}

.navbar.scrolled {
    padding: var(--spacing-sm) 0;
    background: rgba(10, 10, 15, 0.95);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-button);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
}

.logo-img {
    height: 80px;
    width: auto;
    transition: var(--transition-base);
}

.navbar.scrolled .logo-img {
    height: 60px;
}

.footer .logo-img {
    height: 100px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    list-style: none;
}

.nav-links a {
    color: var(--gray-300);
    font-weight: 500;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-button);
    transition: var(--transition-base);
}

.nav-links a:hover {
    color: var(--white);
}

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

.nav-cta {
    display: flex;
    gap: var(--spacing-md);
}

.nav-login-mobile {
    display: none;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: var(--transition-base);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 0 80px;
    background-image: linear-gradient(90deg, rgba(10, 10, 15, 0.98) 0%, rgba(15, 52, 96, 0.8) 50%, rgba(10, 10, 15, 0.3) 100%), url('/images/dentist_hero_bg.webp');
    background-size: cover;
    background-position: center top;
    background-attachment: fixed;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.15) 0%, transparent 60%);
    animation: pulse 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 60%;
    height: 100%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
    animation: pulse 10s ease-in-out infinite reverse;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: rgba(14, 165, 233, 0.15);
    border: 1px solid rgba(14, 165, 233, 0.3);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--primary-light);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.hero-badge svg {
    width: 16px;
    height: 16px;
}

.hero h1 {
    margin-bottom: var(--spacing-lg);
}

.hero h1 .gradient-text {
    background: var(--gradient-cta);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--gray-300);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
}

.phone-mockup {
    position: relative;
    max-width: 360px;
    margin: 0 auto;
    animation: float 6s ease-in-out infinite;
}

.phone-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 40px;
    /* Adjusting for real phone curve */
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.4);
}

.phone-screen-overlay {
    position: absolute;
    top: 7.5%;
    bottom: 1.3%;
    left: 2.5%;
    right: 2.5%;
    background: #ffffff;
    border-radius: 0px 0px 50px 50px;
    /* Matching the inner curve of the real phone bezel */
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.whatsapp-header {
    background: #075E54;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.whatsapp-avatar {
    width: 40px;
    height: 40px;
    background: var(--gradient-button);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    font-size: 14px;
}

.whatsapp-name {
    color: white;
    font-weight: 600;
    font-size: 16px;
}

.whatsapp-status {
    color: rgba(255, 255, 255, 0.7);
    font-size: 12px;
}

.whatsapp-chat {
    padding: 16px;
    background: #ECE5DD;
    min-height: 300px;
    flex: 1;
}

.chat-bubble {
    max-width: 85%;
    padding: 10px 14px;
    border-radius: 12px;
    margin-bottom: 8px;
    font-size: 14px;
    line-height: 1.4;
    animation: fadeInUp 0.5s ease forwards;
    opacity: 0;
}

.chat-bubble.received {
    background: white;
    color: #1a1a1a;
    border-bottom-left-radius: 4px;
}

.chat-bubble.sent {
    background: #DCF8C6;
    color: #1a1a1a;
    margin-left: auto;
    border-bottom-right-radius: 4px;
}

.chat-bubble:nth-child(1) {
    animation-delay: 0.5s;
}

.chat-bubble:nth-child(2) {
    animation-delay: 1.5s;
}

.chat-bubble:nth-child(3) {
    animation-delay: 2.5s;
}

.chat-bubble:nth-child(4) {
    animation-delay: 3.5s;
}

.whatsapp-input {
    display: flex;
    align-items: center;
    padding: 15px;
    background: #ECE5DD;
    gap: 8px;
    position: relative;
    z-index: 2;
}

.input-bar {
    flex: 1;
    background: #ffffff;
    border-radius: 24px;
    display: flex;
    align-items: center;
    padding: 8px 12px;
    gap: 12px;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.05);
}

.input-placeholder {
    flex: 1;
    color: #8596a0;
    font-size: 15px;
    font-weight: 400;
}

.whatsapp-input .icon {
    width: 24px;
    height: 24px;
    color: #8596a0;
    flex-shrink: 0;
}

.mic-button {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #00a884;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    flex-shrink: 0;
}

.mic-button .icon {
    color: #ffffff;
    width: 20px;
    height: 20px;
}

/* ── Problem Section ── */
.problem-section {
    padding: var(--spacing-3xl) 0;
    background: transparent;
    position: relative;
    overflow: hidden;
}

.problem-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(ellipse at center, rgba(239, 68, 68, 0.08) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
}

.problem-header {
    margin-bottom: var(--spacing-3xl);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
}

.problem-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--error), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.problem-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.04);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

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

.problem-icon {
    width: 56px;
    height: 56px;
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    z-index: 2;
}

.problem-number {
    position: absolute;
    top: -10px;
    right: -10px;
    font-family: var(--font-display);
    font-size: 8rem;
    font-weight: 900;
    color: rgba(239, 68, 68, 0.15);
    line-height: 1;
    z-index: 1;
    pointer-events: none;
    user-select: none;
}

.problem-label {
    color: var(--error);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-xs);
    z-index: 2;
    position: relative;
}

.problem-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--white);
    z-index: 2;
    position: relative;
}

.problem-card p {
    color: var(--gray-400);
    font-size: 0.95rem;
    line-height: 1.6;
    z-index: 2;
    position: relative;
    margin: 0;
}

/* ── Results Section ── */
.results-section {
    padding: var(--spacing-3xl) 0;
    background: var(--dark);
    position: relative;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.result-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-base);
}

.result-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.1);
}

.result-icon {
    width: 64px;
    height: 64px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.result-icon.icon-red {
    background: linear-gradient(135deg, #f87171, #ef4444);
    color: white;
    box-shadow: 0 10px 20px rgba(239, 68, 68, 0.2);
}

.result-icon.icon-green {
    background: linear-gradient(135deg, #34d399, #10b981);
    color: white;
    box-shadow: 0 10px 20px rgba(16, 185, 129, 0.2);
}

.result-icon.icon-blue {
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    color: white;
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.2);
}

.result-icon.icon-purple {
    background: linear-gradient(135deg, #a78bfa, #8b5cf6);
    color: white;
    box-shadow: 0 10px 20px rgba(139, 92, 246, 0.2);
}

.result-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.result-label {
    color: var(--gray-400);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-lg);
}

.result-card h3 {
    font-size: 1rem;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.result-card p {
    font-size: 0.85rem;
    color: var(--gray-400);
    line-height: 1.5;
    margin: 0;
}

/* ── AI Automation Section ── */
.ai-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, var(--dark) 0%, #0a1128 100%);
    position: relative;
    overflow: hidden;
}

.ai-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.ai-subtitle {
    font-size: 1.15rem;
    color: var(--gray-400);
    margin-bottom: var(--spacing-2xl);
}

.ai-feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.ai-feature {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.ai-feature:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(14, 165, 233, 0.3);
    transform: translateX(5px);
}

.ai-icon {
    font-size: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ai-text h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.ai-text p {
    font-size: 0.9rem;
    color: var(--gray-400);
    margin: 0;
}

/* Dashboard UI Mock */
.dashboard-mock {
    background: var(--gray-900);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 40px rgba(14, 165, 233, 0.15);
    overflow: hidden;
    position: relative;
    transform: perspective(1000px) rotateY(-5deg) scale(1.05);
    transition: transform var(--transition-slow);
}

.dashboard-mock:hover {
    transform: perspective(1000px) rotateY(0deg) scale(1.05);
}

.dashboard-mock-header {
    background: rgba(0, 0, 0, 0.4);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mock-dots {
    display: flex;
    gap: 6px;
    margin-right: 15px;
}

.mock-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #4b5563;
}

.mock-dots span:nth-child(1) {
    background: #ef4444;
}

.mock-dots span:nth-child(2) {
    background: #f59e0b;
}

.mock-dots span:nth-child(3) {
    background: #10b981;
}

.mock-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-400);
    flex: 1;
    text-align: center;
}

.dashboard-mock-body {
    padding: 20px;
    position: relative;
}

.mock-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.mock-table th {
    text-align: left;
    color: var(--gray-500);
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-weight: 500;
}

.mock-table td {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.mock-table tr:last-child td {
    border-bottom: none;
}

.mock-badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.mock-badge.confirm {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
}

.mock-badge.pending {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
}

.mock-risk {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.mock-risk.risk-low {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.mock-risk.risk-medium {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.mock-risk.risk-high {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
    animation: pulse 2s infinite;
}

.mock-wa-toast {
    position: absolute;
    bottom: -15px;
    right: -15px;
    background: #ffffff;
    border-radius: 12px;
    padding: 12px 16px;
    display: flex;
    gap: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    width: 280px;
    animation: fadeInUp 0.5s ease 1s backwards;
    z-index: 10;
}

.wa-toast-icon {
    width: 32px;
    height: 32px;
    background: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.wa-toast-text {
    color: #111827;
}

.wa-toast-text strong {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 2px;
}

.wa-toast-text p {
    margin: 0;
    font-size: 0.75rem;
    color: #4b5563;
    line-height: 1.4;
}

/* Features Section */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--dark);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-3xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-lg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.feature-card {
    padding: var(--spacing-2xl);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-button);
    transform: scaleX(0);
    transition: var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: var(--shadow-glow);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-button);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    font-size: 1.5rem;
}

.feature-card h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.feature-card p {
    font-size: 1rem;
    color: var(--gray-400);
}

.feature-card.bento-large {
    grid-column: span 2;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    z-index: 1;
    border: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    min-height: 250px;
}

.feature-card.bento-large::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 10, 15, 0.2) 0%, rgba(10, 10, 15, 0.95) 100%);
    z-index: -1;
}

.feature-card.bento-large .feature-icon {
    margin-bottom: auto;
}

.feature-card.bento-large h3 {
    font-size: 1.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

/* How It Works */
.how-it-works {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, var(--dark) 0%, #0f0f1a 100%);
}

.steps-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.steps-container::before {
    content: '';
    position: absolute;
    top: 60px;
    left: 15%;
    right: 15%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
}

.step {
    flex: 1;
    text-align: center;
    padding: 0 var(--spacing-lg);
    position: relative;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--gradient-button);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    margin: 0 auto var(--spacing-xl);
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-glow);
}

.step h3 {
    margin-bottom: var(--spacing-md);
}

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

/* Pricing Section */
.pricing {
    padding: var(--spacing-3xl) 0;
    background: var(--dark);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.03) 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    display: flex;
    flex-direction: column;
}

.pricing-card .btn {
    margin-top: auto;
}

.pricing-card.popular {
    background: linear-gradient(145deg, rgba(14, 165, 233, 0.2) 0%, rgba(59, 130, 246, 0.1) 100%);
    border: 2px solid var(--primary);
    transform: scale(1.05);
}

.pricing-card.popular::before {
    content: 'Más Popular';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-button);
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-8px);
}

.plan-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-300);
    margin-bottom: var(--spacing-md);
}

.plan-price {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.plan-price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--gray-400);
}

.plan-description {
    color: var(--gray-400);
    margin-bottom: var(--spacing-xl);
    font-size: 0.95rem;
}

.plan-features {
    list-style: none;
    margin-bottom: var(--spacing-xl);
    text-align: left;
}

.plan-features li {
    padding: var(--spacing-sm) 0;
    color: var(--gray-300);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.plan-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-main);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.cta-section h2 {
    color: var(--white);
    margin-bottom: var(--spacing-lg);
}

.cta-section p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-2xl);
}

.cta-section .btn-primary {
    background: var(--white);
    color: var(--primary);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.cta-section .btn-primary:hover {
    background: var(--gray-100);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
}

/* Footer */
.footer {
    background: #050508;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: var(--spacing-lg);
    display: inline-block;
}

.footer-brand p {
    font-size: 1rem;
    color: var(--gray-500);
}

.footer-column h4 {
    color: var(--white);
    margin-bottom: var(--spacing-lg);
    font-size: 1rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--gray-500);
    font-size: 0.95rem;
}

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

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: var(--gray-600);
    font-size: 0.875rem;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
    transition: var(--transition-base);
}

.social-links a:hover {
    background: var(--gradient-button);
    color: var(--white);
}

/* Animations */
@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.7;
        transform: scale(1.05);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes glow {

    0%,
    100% {
        box-shadow: 0 0 20px rgba(14, 165, 233, 0.4);
    }

    50% {
        box-shadow: 0 0 40px rgba(14, 165, 233, 0.8);
    }
}

/* Responsive */
@media (max-width: 1024px) {
    .navbar {
        top: 16px;
        left: 16px;
        right: 16px;
        width: auto;
        border-radius: 100px;
        padding: 8px 24px;
        background: rgba(10, 10, 15, 0.95);
        border: 1px solid rgba(255, 255, 255, 0.08);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }

    .navbar.scrolled {
        padding: 8px 24px;
        top: 16px;
        left: 16px;
        right: 16px;
        border-radius: 100px;
        background: rgba(5, 5, 8, 0.98);
        border-color: rgba(255, 255, 255, 0.15);
    }

    .navbar .container {
        padding: 0;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-lg);
        position: absolute;
        top: calc(100% + 16px);
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        padding: var(--spacing-xl);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 24px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
        z-index: 999;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        font-size: 1.1rem;
        padding: var(--spacing-sm) 0;
        width: 100%;
    }

    .nav-links .nav-login-mobile {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-sm);
        width: 100%;
        padding-top: var(--spacing-lg);
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        margin-top: var(--spacing-sm);
    }

    .nav-links .nav-login-mobile a {
        display: flex;
        width: 100%;
        text-align: center;
        justify-content: center;
        padding: var(--spacing-md) var(--spacing-xl);
        font-size: 1rem;
    }

    .nav-cta {
        display: none;
    }

    .logo-img {
        height: 35px;
    }

    .navbar.scrolled .logo-img {
        height: 30px;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        background-image: linear-gradient(180deg, rgba(10, 10, 15, 0.95) 0%, rgba(15, 52, 96, 0.85) 50%, rgba(10, 10, 15, 0.8) 100%), url('/images/dentist_hero_bg.webp');
        background-position: 15% center;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        max-width: 100%;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

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

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

    .ai-container {
        grid-template-columns: 1fr;
    }

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


    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .pricing-card.popular {
        transform: none;
    }

    .pricing-card.popular:hover {
        transform: translateY(-8px);
    }

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

    .steps-container {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-2xl);
    }

    .steps-container::before {
        display: none;
    }
}

@media (max-width: 768px) {

    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card.bento-large {
        grid-column: span 1;
    }

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

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

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

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand {
        max-width: 100%;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

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

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

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

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-gradient {
    background: var(--gradient-button);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mt-1 {
    margin-top: var(--spacing-md);
}

.mt-2 {
    margin-top: var(--spacing-xl);
}

.mb-1 {
    margin-bottom: var(--spacing-md);
}

.mb-2 {
    margin-bottom: var(--spacing-xl);
}

/* Fix for dropdown visibility */
select option {
    background-color: var(--gray-900);
    color: var(--white);
    padding: 10px;
}