/* ===================================================================
   CIXIO.COM - Modern Landing Page Styles
   Design System: Matching cixio.ai look & feel
   Features: Clean, modern, mobile-first responsive design
   =================================================================== */

/* ===== CSS Variables ===== */
:root {
    /* Primary Colors - cixio.ai inspired indigo/pink palette */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #ec4899;
    --accent-color: #06b6d4;

    /* Text Colors */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-light: #94a3b8;

    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #0f172a;
    --bg-dark-alt: #1e293b;

    /* Border & Shadows */
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Legacy Neutral Colors (keeping for JS compatibility) */
    --dark: #0f172a;
    --dark-alt: #1e293b;
    --gray-dark: #334155;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --light: #f8fafc;
    --white: #ffffff;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1, #ec4899);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --gradient-card: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(236, 72, 153, 0.05));

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;

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

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

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

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

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

ul {
    list-style: none;
}

/* ===== Container ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ===== Section ===== */
.section {
    padding: 6rem 0;
}

.section-alt {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===================================================================
   NAVIGATION
   =================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.875rem 0;
}

.logo-img {
    height: 36px;
    width: auto;
}

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

.nav-menu li {
    list-style: none;
}

.nav-menu a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

/* Nav link underline effect */
.nav-menu li:not(:nth-last-child(-n+2)) a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.nav-menu li:not(:nth-last-child(-n+2)) a:hover::after {
    width: 100%;
}

.btn-login,
.btn-register {
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-block;
}

.btn-login {
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    background: transparent;
    transition: all 0.3s ease;
}

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

.btn-register {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white) !important;
    border: none;
    transition: all 0.3s ease;
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px -4px rgba(99, 102, 241, 0.4);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ===================================================================
   HERO SECTION
   =================================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
    background: var(--bg-primary);
}

/* Animated gradient orbs background (cixio.ai style) */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-background::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: var(--primary-color);
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    top: -200px;
    right: -100px;
    animation: heroFloat 20s ease-in-out infinite;
}

.hero-background::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: var(--secondary-color);
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.12;
    bottom: -200px;
    left: -100px;
    animation: heroFloat 20s ease-in-out infinite reverse;
}

.hero-overlay {
    position: absolute;
    width: 400px;
    height: 400px;
    background: var(--accent-color);
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.08;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: heroFloat 25s ease-in-out infinite;
    animation-delay: -8s;
}

@keyframes heroFloat {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 4rem 0;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    flex-wrap: wrap;
}

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

.stat-item h3 {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
    line-height: 1.2;
}

.stat-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===================================================================
   BUTTONS
   =================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-align: center;
    white-space: nowrap;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(99, 102, 241, 0.4);
}

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

.btn-outline:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.04);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-social {
    background: var(--white);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    justify-content: center;
    transition: all 0.3s ease;
    width: 100%;
}

.btn-social:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-light);
}

/* ===================================================================
   ABOUT SECTION
   =================================================================== */
.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.about-item {
    background: var(--gradient-card);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(99, 102, 241, 0.1);
    transition: all 0.3s ease;
}

.about-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.about-item h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.about-item h3 i {
    color: var(--primary-color);
    font-size: 1.25rem;
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
    border-radius: var(--radius-lg);
}

.about-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===================================================================
   SERVICES SECTION
   =================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon i {
    font-size: 1.75rem;
    color: var(--white);
}

.service-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.service-features i {
    color: var(--primary-color);
    font-size: 0.8rem;
}

/* ===================================================================
   PRODUCTS SECTION
   =================================================================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.product-image {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 180px;
    position: relative;
    overflow: hidden;
}

.product-image::before {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    top: -60px;
    right: -60px;
}

.product-image::after {
    content: '';
    position: absolute;
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    bottom: -40px;
    left: -40px;
}

.product-image i {
    font-size: 4rem;
    color: var(--white);
    position: relative;
    z-index: 1;
}

.product-content {
    padding: 2rem;
}

.product-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.product-content > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.product-features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.product-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.product-features i {
    color: var(--primary-color);
    margin-top: 4px;
    font-size: 0.85rem;
}

/* ===================================================================
   FEATURES SECTION
   =================================================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    background: var(--gradient-card);
    border: 1px solid rgba(99, 102, 241, 0.1);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.feature-icon i {
    font-size: 1.75rem;
    color: var(--white);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ===================================================================
   PRICING SECTION
   =================================================================== */
.contract-toggle {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.contract-toggle .btn {
    min-width: 160px;
    justify-content: center;
}

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

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.pricing-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.03);
    box-shadow: 0 20px 40px -10px rgba(99, 102, 241, 0.2);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
    box-shadow: 0 25px 50px -10px rgba(99, 102, 241, 0.3);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 0.4rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.85rem;
    white-space: nowrap;
}

.pricing-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.pricing-header h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.price {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0.25rem;
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.amount {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.period {
    font-size: 1rem;
    color: var(--text-secondary);
    align-self: flex-end;
    margin-bottom: 0.5rem;
}

.pricing-features {
    margin-bottom: 2rem;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.pricing-features li.disabled {
    color: var(--text-light);
}

.pricing-features i {
    color: var(--primary-color);
    font-size: 0.85rem;
}

.pricing-features li.disabled i {
    color: var(--text-light);
}

.pricing-card .btn {
    width: 100%;
    justify-content: center;
}

/* ===================================================================
   NEWSLETTER SECTION
   =================================================================== */
.newsletter {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    text-align: center;
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.newsletter::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    top: -100px;
    right: -100px;
}

.newsletter::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    bottom: -80px;
    left: -80px;
}

.newsletter-content {
    position: relative;
    z-index: 1;
}

.newsletter-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.newsletter-content p {
    margin-bottom: 2.5rem;
    opacity: 0.9;
    font-size: 1.1rem;
}

.subscribe-form {
    max-width: 550px;
    margin: 0 auto;
}

.form-group-inline {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.form-group-inline input {
    flex: 1;
    min-width: 250px;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-primary);
    outline: none;
    background: rgba(255, 255, 255, 0.95);
}

.form-group-inline input:focus {
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
    background: var(--white);
}

.form-group-inline .btn {
    background: var(--bg-dark);
    color: var(--white);
    white-space: nowrap;
}

.form-group-inline .btn:hover {
    background: var(--bg-dark-alt);
    transform: translateY(-2px);
}

.form-note {
    margin-top: 1rem;
    font-size: 0.85rem;
    opacity: 0.8;
}

/* ===================================================================
   CONTACT SECTION
   =================================================================== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    background: var(--gradient-card);
    padding: 2rem;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(99, 102, 241, 0.1);
    text-align: center;
    transition: all 0.3s ease;
}

.info-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.info-card i {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.75rem;
    display: inline-block;
}

.info-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.info-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.social-links a {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 20px -4px rgba(99, 102, 241, 0.4);
}

.contact-form-wrapper {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.contact-form .form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--bg-primary);
    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(99, 102, 241, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-light);
}

.form-group textarea {
    resize: vertical;
}

/* ===================================================================
   FOOTER
   =================================================================== */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-branding {
    flex: 1;
    max-width: 400px;
}

.footer-logo {
    height: 36px;
    width: auto;
    margin-bottom: 0.75rem;
}

.footer-branding p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-separator {
    display: block;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--white);
    font-weight: 700;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

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

.footer-section ul a {
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.875rem;
    transition: all 0.3s ease;
    line-height: 1.6;
}

.footer-section ul a:hover {
    color: var(--primary-light);
    padding-left: 4px;
}

.footer-social {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    justify-content: flex-start;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-header .footer-social {
    display: flex;
    gap: 0.5rem;
}

.footer-social a {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.footer-social a:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.8rem;
    margin-bottom: 0.25rem;
}

/* ===================================================================
   MODALS
   =================================================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.35s ease;
    box-shadow: var(--shadow-2xl);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    font-size: 1.75rem;
    color: var(--text-light);
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-header {
    text-align: center;
    margin-bottom: 2rem;
}

.modal-header h2 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

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

.auth-form .form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox input {
    cursor: pointer;
    accent-color: var(--primary-color);
}

.link {
    color: var(--primary-color);
    font-weight: 500;
}

.link:hover {
    text-decoration: underline;
}

.form-divider {
    text-align: center;
    margin: 1.5rem 0;
    position: relative;
}

.form-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-color);
}

.form-divider span {
    background: var(--white);
    padding: 0 1rem;
    position: relative;
    color: var(--text-light);
    font-size: 0.85rem;
    font-weight: 500;
}

.social-auth {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.form-footer {
    text-align: center;
    margin-top: 1.25rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===================================================================
   SUCCESS MESSAGE
   =================================================================== */
.success-message {
    position: fixed;
    top: 100px;
    right: -400px;
    background: linear-gradient(135deg, #10b981, #059669);
    color: var(--white);
    padding: 1.25rem 1.75rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 3000;
    transition: right 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    font-weight: 500;
}

.success-message.show {
    right: 2rem;
}

.success-message i {
    font-size: 1.5rem;
}

/* ===================================================================
   NOTIFICATIONS
   =================================================================== */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 10000;
    transform: translateX(400px);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    min-width: 300px;
    max-width: 500px;
}

.notification.show {
    transform: translateX(0);
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.notification-content i {
    font-size: 1.5rem;
}

.notification-success {
    border-left: 4px solid #10b981;
}

.notification-success i {
    color: #10b981;
}

.notification-error {
    border-left: 4px solid #ef4444;
}

.notification-error i {
    color: #ef4444;
}

.notification-info {
    border-left: 4px solid var(--primary-color);
}

.notification-info i {
    color: var(--primary-color);
}

/* ===================================================================
   LOADING STATES
   =================================================================== */
.fa-spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ===================================================================
   BUTTON DISABLED STATE
   =================================================================== */
button:disabled,
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* ===================================================================
   USER PROFILE (logged-in state)
   =================================================================== */
.user-profile {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
    border-radius: var(--radius-md);
    color: var(--primary-color);
    font-weight: 600;
}

.user-profile i {
    font-size: 1.25rem;
}

.user-profile:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(236, 72, 153, 0.15));
}

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

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

/* ===================================================================
   RESPONSIVE DESIGN
   =================================================================== */

/* Large Tablet / Small Desktop */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3.5rem;
    }

    .section-title {
        font-size: 2.5rem;
    }

    .hero-stats {
        gap: 2.5rem;
    }

    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }

    .pricing-card.featured {
        transform: scale(1.02);
    }

    .pricing-card.featured:hover {
        transform: scale(1.04) translateY(-5px);
    }
}

/* Tablet */
@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 6rem 2rem 2rem;
        gap: 1.25rem;
        transition: left 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
        align-items: center;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu a {
        font-size: 1.15rem;
        color: var(--text-primary);
    }

    .nav-menu li:not(:nth-last-child(-n+2)) a::after {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 3rem;
    }

    .section-title {
        font-size: 2.25rem;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .contact-info {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .info-card {
        flex: 1;
        min-width: 200px;
    }

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

    .pricing-card.featured {
        transform: scale(1);
    }

    .pricing-card.featured:hover {
        transform: translateY(-5px);
    }
}

/* Mobile */
@media (max-width: 768px) {
    .container {
        padding: 0 1.25rem;
    }

    .section {
        padding: 4rem 0;
    }

    .section-header {
        margin-bottom: 2.5rem;
    }

    .hero {
        min-height: auto;
        padding-top: 80px;
    }

    .hero-content {
        padding: 3rem 0 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
        letter-spacing: -0.02em;
    }

    .hero-subtitle {
        font-size: 1.05rem;
        margin-bottom: 2rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
        margin-bottom: 3rem;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .hero-stats {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 1.5rem;
        justify-content: center;
    }

    .stat-item {
        min-width: 120px;
    }

    .stat-item h3 {
        font-size: 2rem;
    }

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

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

    .about-content,
    .services-grid,
    .products-grid,
    .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .contact-info {
        flex-direction: column;
    }

    .info-card {
        min-width: auto;
    }

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

    .form-group-inline {
        flex-direction: column;
    }

    .form-group-inline input {
        min-width: 100%;
    }

    .newsletter {
        padding: 4rem 0;
    }

    .newsletter-content h2 {
        font-size: 2rem;
    }

    .footer-header {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

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

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

    .contract-toggle {
        flex-direction: column;
        align-items: center;
    }

    .contract-toggle .btn {
        width: 200px;
    }
}

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

    .section {
        padding: 3rem 0;
    }

    .hero-content {
        padding: 2rem 0;
    }

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

    .hero-subtitle {
        font-size: 0.95rem;
    }

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

    .stat-item h3 {
        font-size: 1.75rem;
    }

    .about-item,
    .service-card,
    .feature-card {
        padding: 1.75rem;
    }

    .pricing-card {
        padding: 2rem;
    }

    .newsletter {
        padding: 3rem 0;
    }

    .newsletter-content h2 {
        font-size: 1.75rem;
    }

    .contact-form-wrapper {
        padding: 1.5rem;
    }

    .footer {
        padding: 2rem 0 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 1.25rem;
    }

    .footer-section h4 {
        font-size: 0.8rem;
        margin-bottom: 0.5rem;
    }

    .footer-section ul a {
        font-size: 0.8rem;
    }

    .footer-bottom p {
        font-size: 0.75rem;
    }

    .modal-content {
        padding: 1.75rem;
        width: 95%;
    }

    .modal-header h2 {
        font-size: 1.5rem;
    }

    .hero-stats {
        gap: 1rem;
    }

    .stat-item {
        min-width: 100px;
    }
}

/* ===================================================================
   UTILITY CLASSES
   =================================================================== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }