/* ============================================
   CSS Variables & Root Configuration
   ============================================ */
:root {
    /* Colors */
    --primary-color: #0ea5e9;
    --primary-dark: #0284c7;
    --primary-accessible: #0369a1; /* WCAG AA compliant for text on white */
    --primary-light: #38bdf8;
    --secondary-color: #14b8a6;
    --secondary-dark: #0d9488;
    --secondary-accessible: #0f766e; /* WCAG AA compliant for text on white */

    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-light: #64748b;

    --bg-white: #ffffff;
    --bg-gray-light: #f8fafc;
    --bg-gray: #f1f5f9;
    --bg-dark: #0f172a;

    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --header-height: 80px;
    --section-padding: 6rem 0;

    /* Transitions */
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.6;
    background-color: var(--bg-white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* ============================================
   Utility Classes
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-color));
    color: white;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-primary);
    line-height: 1.2;
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
}

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

/* ============================================
   Icon System
   ============================================ */
.icon {
    width: 100%;
    height: 100%;
    display: block;
    flex-shrink: 0;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.938rem;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: var(--transition-base);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: var(--primary-accessible);
    color: white;
}

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

.btn-outline:hover {
    border-color: var(--primary-accessible);
    color: var(--primary-accessible);
}

.btn-white {
    background: white;
    color: var(--primary-accessible);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-base);
}

.header.scroll-header {
    box-shadow: var(--shadow-md);
}

.nav {
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav__logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 800;
    gap: 0.25rem;
}

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

.logo-care {
    background: linear-gradient(135deg, var(--primary-accessible), var(--secondary-accessible));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav__list {
    display: flex;
    gap: 2rem;
    margin-right: 2rem;
}

.nav__link {
    color: var(--text-primary);
    font-weight: 500;
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

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

.nav__toggle,
.nav__close {
    display: none;
    cursor: pointer;
    color: var(--text-primary);
}

.nav__btns-mobile {
    display: none;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    margin-top: var(--header-height);
    padding: 5rem 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #f0fdfa 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(14, 165, 233, 0.1), transparent);
    z-index: 0;
}

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

.hero__title {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.hero__description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2.5rem;
}

.hero__buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat__number {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-accessible), var(--secondary-accessible));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat__label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Dashboard Mockup */
.dashboard-mockup {
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.mockup-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mockup-dots {
    display: flex;
    gap: 0.5rem;
}

.mockup-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
}

.mockup-title {
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
}

.mockup-content {
    padding: 2rem;
}

.chart-card {
    background: var(--bg-gray-light);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.chart-header {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    gap: 1rem;
    height: 100px;
}

.bar {
    flex: 1;
    background: linear-gradient(to top, var(--primary-color), var(--secondary-color));
    border-radius: 4px 4px 0 0;
    transition: var(--transition-base);
}

.bar:hover {
    opacity: 0.8;
}

.info-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.info-card {
    background: var(--bg-gray-light);
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.info-icon {
    width: 2rem;
    height: 2rem;
    color: var(--primary-color);
}

.info-text {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ============================================
   About Section
   ============================================ */
.about {
    padding: var(--section-padding);
    background: var(--bg-white);
}

.about__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.about__card {
    background: var(--bg-gray-light);
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition-base);
}

.about__card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.about__icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.about__card-title {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.about__card-text {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   AI Section
   ============================================ */
.ai-section {
    padding: var(--section-padding);
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.ai-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.2), transparent);
    animation: pulse 8s ease-in-out infinite;
}

.ai-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: -10%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(20, 184, 166, 0.15), transparent);
    animation: pulse 10s ease-in-out infinite reverse;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 0.8; }
}

.ai-section .section-header {
    position: relative;
    z-index: 999;
}

.ai-section .section-title,
.ai-section .section-description {
    color: white;
}

.ai-features {
    position: relative;
    z-index: 1;
}

.ai-feature-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 4rem;
}

.ai-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.ai-brain {
    position: relative;
    width: 300px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.brain-core {
    width: 6rem;
    height: 6rem;
    color: var(--primary-light);
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 0 30px rgba(14, 165, 233, 0.6));
}

.neural-network {
    position: absolute;
    width: 100%;
    height: 100%;
}

.neuron {
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-color));
    border-radius: 50%;
    animation: orbit 6s linear infinite;
    animation-delay: var(--delay);
    box-shadow: 0 0 20px rgba(14, 165, 233, 0.8);
}

@keyframes orbit {
    0% {
        transform: rotate(0deg) translateX(120px) rotate(0deg);
    }
    100% {
        transform: rotate(360deg) translateX(120px) rotate(-360deg);
    }
}

.neuron:nth-child(1) { animation-duration: 6s; }
.neuron:nth-child(2) { animation-duration: 7s; }
.neuron:nth-child(3) { animation-duration: 8s; }
.neuron:nth-child(4) { animation-duration: 9s; }
.neuron:nth-child(5) { animation-duration: 10s; }
.neuron:nth-child(6) { animation-duration: 11s; }

.ai-content {
    color: white;
}

.ai-main-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, white, var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ai-main-description {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
}

.ai-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.ai-stat {
    text-align: center;
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.ai-stat:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.ai-stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.ai-stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.ai-capabilities {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.ai-capability-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.ai-capability-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-8px);
    border-color: var(--primary-light);
    box-shadow: 0 10px 30px rgba(14, 165, 233, 0.3);
}

.capability-icon {
    width: 3rem;
    height: 3rem;
    margin-bottom: 1.25rem;
    color: var(--primary-light);
}

.capability-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.capability-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    font-size: 0.938rem;
}

.ai-use-cases {
    background: rgba(255, 255, 255, 0.05);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.use-cases-title {
    font-size: 1.75rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 3rem;
    color: white;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    gap: 1.5rem;
    align-items: center;
}

.use-case {
    background: rgba(255, 255, 255, 0.08);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    border: 2px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
}

.use-case:hover {
    border-color: var(--primary-light);
    transform: scale(1.05);
}

.use-case-number {
    display: inline-block;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 900;
    margin: 0 auto 1rem;
}

.use-case h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: white;
}

.use-case p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.use-case-arrow {
    font-size: 2rem;
    color: var(--primary-light);
    font-weight: bold;
}

/* ============================================
   Solutions Section
   ============================================ */
.solutions {
    padding: var(--section-padding);
    background: var(--bg-gray-light);
}

.solutions__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.solution-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    transition: var(--transition-base);
    border: 2px solid transparent;
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.solution-icon {
    width: 3rem;
    height: 3rem;
    margin-bottom: 1.25rem;
    color: var(--primary-color);
}

.solution-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.solution-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.solution-features {
    margin-bottom: 1.5rem;
}

.solution-features li {
    color: var(--text-secondary);
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    font-size: 0.938rem;
}

.solution-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-accessible);
    font-weight: bold;
}

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

.solution-link:hover {
    color: var(--primary-dark);
    gap: 0.75rem;
}

/* ============================================
   Benefits Section
   ============================================ */
.benefits {
    padding: var(--section-padding);
    background: var(--bg-white);
}

.benefits__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.benefit-item {
    display: flex;
    gap: 2rem;
}

.benefit-number {
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-accessible), var(--secondary-accessible));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    flex-shrink: 0;
}

.benefit-title {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.benefit-text {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   CTA Section
   ============================================ */
.cta {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.cta::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.cta__content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta__title {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1.25rem;
    line-height: 1.2;
}

.cta__description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    padding: var(--section-padding);
    background: var(--bg-gray-light);
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact__title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.contact__description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 3rem;
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact__detail {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.contact__icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary-color));
    border-radius: 12px;
    color: white;
}

.contact__icon .icon {
    width: 1.5rem;
    height: 1.5rem;
}

.contact__label {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.contact__detail p {
    color: var(--text-secondary);
}

/* Contact Form */
.contact__form {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.938rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-family);
    font-size: 1rem;
    transition: var(--transition-base);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

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

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 4rem 0 2rem;
}

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

.footer__logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 800;
    gap: 0.25rem;
    margin-bottom: 1rem;
}

.footer__logo .logo-text {
    color: white;
}

.footer__description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.footer__title {
    color: white;
    font-weight: 700;
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer__links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-base);
}

.footer__links a:hover {
    color: var(--primary-light);
    padding-left: 0.5rem;
}

.footer__bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer__social {
    display: flex;
    gap: 1rem;
}

.footer__social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    transition: var(--transition-base);
    font-weight: 600;
    font-size: 0.875rem;
}

.footer__social a:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    transform: translateY(-2px);
}

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

/* Tablet (768px - 1024px) */
@media screen and (max-width: 1024px) {
    .hero__title {
        font-size: 2.75rem;
    }

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

    .about__grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }

    .footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

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

    .ai-feature-main {
        gap: 3rem;
    }
}

/* Mobile (max-width: 768px) */
@media screen and (max-width: 768px) {
    :root {
        --header-height: 60px;
        --section-padding: 4rem 0;
    }

    .container {
        padding: 0 1.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .section-description {
        font-size: 1rem;
    }

    /* Mobile Navigation */
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: white;
        padding: 6rem 2rem 2rem;
        box-shadow: var(--shadow-xl);
        transition: right 0.4s ease;
        flex-direction: column;
        align-items: flex-start;
    }

    .nav__menu.show-menu {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        gap: 1.5rem;
        margin-right: 0;
        margin-bottom: 2rem;
    }

    .nav__btn-desktop {
        display: none;
    }

    .nav__btns-mobile {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        width: 100%;
    }

    .nav__btns-mobile .btn {
        width: 100%;
    }

    .nav__toggle,
    .nav__close {
        display: block;
    }

    .nav__close {
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
        font-size: 1.5rem;
    }

    /* Hero Section */
    .hero {
        padding: 3rem 0;
    }

    .hero__container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero__title {
        font-size: 2rem;
    }

    .hero__description {
        font-size: 1rem;
    }

    .hero__buttons {
        flex-direction: column;
    }

    .hero__buttons .btn {
        width: 100%;
    }

    .hero__stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }


    /* Solutions */
    .solutions__grid {
        grid-template-columns: 1fr;
    }

    /* Benefits */
    .benefits__grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .benefit-item {
        flex-direction: column;
        gap: 1rem;
    }

    /* CTA */
    .cta__title {
        font-size: 1.75rem;
    }

    .cta__description {
        font-size: 1rem;
    }

    /* Contact */
    .contact__grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .contact__title {
        font-size: 2rem;
    }

    .contact__description {
        font-size: 1rem;
    }

    /* AI Section */
    .ai-feature-main {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .ai-brain {
        width: 250px;
        height: 250px;
    }

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

    .ai-stats-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .use-cases-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .use-case-arrow {
        display: none;
    }

    /* Footer */
    .footer__grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer__bottom {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
}

/* Small Mobile (max-width: 480px) */
@media screen and (max-width: 480px) {
    .hero__title {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .stat__number {
        font-size: 2rem;
    }

    .mockup-content {
        padding: 1rem;
    }

    .info-cards {
        grid-template-columns: 1fr;
    }

    .contact__form {
        padding: 1.5rem;
    }

    .ai-brain {
        width: 200px;
        height: 200px;
    }

    .ai-use-cases {
        padding: 2rem 1.5rem;
    }

    .use-cases-title {
        font-size: 1.5rem;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Scroll Reveal Animation */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}