/* ==========================================================================
   EMVEO Talent AI - Premium Stylesheet (Vanilla CSS)
   ========================================================================== */

/* 1. Imports & Fonts */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* 2. Custom Properties (Design Tokens) */
:root {
    --bg-base: #080c16;
    --bg-surface: #111827;
    --bg-surface-alt: #1f2937;
    --bg-glass: rgba(13, 18, 30, 0.75);
    
    --color-primary: #06b6d4;      /* Cyan */
    --color-secondary: #8b5cf6;    /* Violet */
    --color-accent: #3b82f6;       /* Indigo */
    
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;
    
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(6, 182, 212, 0.15);
    
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    --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 -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-neon: 0 0 20px rgba(6, 182, 212, 0.2);
}

/* 3. Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.6;
}

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

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: none;
    border: none;
}

ul {
    list-style: none;
}

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

/* 4. Global Utility Classes */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

.bg-gradient-radial {
    background: radial-gradient(circle at top, rgba(6, 182, 212, 0.12) 0%, rgba(139, 92, 246, 0.03) 50%, rgba(8, 12, 22, 0) 100%);
}

.section-padding {
    padding: 6rem 0;
}

.text-center { text-align: center; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-6 { margin-bottom: 3.5rem; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    font-weight: 600;
    border-radius: 9999px;
    cursor: pointer;
    transition: var(--transition-normal);
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #000;
    color: var(--text-primary);
    box-shadow: 0 4px 14px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(6, 182, 212, 0.5), 0 0 12px rgba(139, 92, 246, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.btn-outline-primary {
    border: 1.5px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline-primary:hover {
    background: var(--color-primary);
    color: var(--bg-base);
    box-shadow: var(--shadow-neon);
    transform: translateY(-2px);
}

/* Glass Card */
.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
}

.glass-card:hover {
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 0 15px rgba(6, 182, 212, 0.1);
    transform: translateY(-4px);
}

/* 5. Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(8, 12, 22, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(8, 12, 22, 0.9);
    padding: 0.5rem 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4.5rem;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 800;
    font-size: 1.3rem;
    letter-spacing: -0.5px;
}

.nav-logo-img {
    height: 32px;
    width: auto;
}

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

.nav-link {
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transition: var(--transition-fast);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

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

/* Mobile Menu Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 28px;
    height: 2.5px;
    background-color: var(--text-primary);
    border-radius: 999px;
    transition: var(--transition-normal);
}

/* 6. Layout Main Content */
main {
    flex: 1;
    margin-top: 4.5rem; /* Heights matches navbar */
}

/* 7. Homepage (index.php) Styles */
.hero-section {
    position: relative;
    padding: 7rem 0 5rem 0;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, rgba(139, 92, 246, 0.05) 50%, rgba(0,0,0,0) 70%);
    top: -10%;
    right: -10%;
    z-index: -1;
    filter: blur(40px);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 550px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-image-wrapper {
    position: relative;
    border-radius: 20px;
    padding: 6px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.4), rgba(139, 92, 246, 0.4));
    box-shadow: 0 20px 40px rgba(0,0,0,0.5), var(--shadow-neon);
}

.hero-mockup {
    border-radius: 15px;
    background: var(--bg-surface);
    overflow: hidden;
    padding: 1.5rem;
    border: 1px solid rgba(255,255,255,0.05);
}

.hero-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 5rem;
}

.stat-card {
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    transition: var(--transition-normal);
}

.stat-card:hover {
    border-color: var(--color-primary);
    background: rgba(6, 182, 212, 0.03);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(6,182,212,0.1);
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    line-height: 1;
}

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

/* Home Intro Section */
.home-intro {
    background: linear-gradient(180deg, var(--bg-base) 0%, rgba(17, 24, 39, 0.4) 100%);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: center;
}

.intro-visual svg {
    width: 100%;
    filter: drop-shadow(0 10px 20px rgba(6, 182, 212, 0.15));
}

.section-subtitle {
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
    display: block;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
}

/* 8. Product Page (product.php) Styles */
.problems-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
}

.problem-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 3rem;
    transition: var(--transition-normal);
}

.problem-box:hover {
    border-color: rgba(139, 92, 246, 0.2);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.problem-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.7rem;
    font-weight: 700;
}

.problem-list {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.problem-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text-secondary);
}

.problem-icon-wrapper {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(239, 68, 68, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 3px;
}

.problem-icon-wrapper.success {
    background: rgba(16, 185, 129, 0.15);
}

.problem-icon-wrapper svg {
    width: 12px;
    height: 12px;
}

/* Why Us Section */
.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.why-card {
    text-align: left;
}

.why-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(139, 92, 246, 0.15));
    border: 1px solid rgba(6, 182, 212, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

.why-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.why-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Integrations Section */
.integrations-wrapper {
    background: rgba(255,255,255,0.01);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.integrations-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
    margin-top: 3.5rem;
}

.integration-badge {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--text-secondary);
    transition: var(--transition-normal);
    gap: 0.75rem;
}

.integration-badge:hover {
    border-color: var(--color-primary);
    background: rgba(6, 182, 212, 0.05);
    color: var(--text-primary);
    transform: scale(1.03);
}

.integration-badge svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

/* 9. Modules Page (modules.php) Styles */
.modules-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    margin-top: 4rem;
}

.module-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.module-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.module-num {
    font-size: 0.9rem;
    font-weight: 800;
    padding: 0.25rem 0.6rem;
    background: rgba(6, 182, 212, 0.15);
    color: var(--color-primary);
    border-radius: 6px;
    border: 1px solid rgba(6, 182, 212, 0.3);
}

.module-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

.module-desc {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1rem;
    flex-grow: 1;
}

.module-features-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.module-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.module-feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.module-feature-item svg {
    width: 14px;
    height: 14px;
    color: var(--color-primary);
    flex-shrink: 0;
}

/* 10. Pricing Page (pricing.php) Styles */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
    align-items: stretch;
}

.pricing-card {
    display: flex;
    flex-direction: column;
    position: relative;
}

.pricing-card.popular {
    border-color: var(--color-primary);
    box-shadow: 0 15px 35px -5px rgba(6, 182, 212, 0.15);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    right: 30px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #000;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.3rem 1rem;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.pricing-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
    margin-bottom: 2rem;
}

.pricing-plan-name {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.pricing-plan-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.pricing-price-box {
    margin-top: 1rem;
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
}

.pricing-price {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}

.pricing-period {
    color: var(--text-muted);
    font-size: 1rem;
}

.pricing-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2.5rem;
    flex-grow: 1;
}

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

.pricing-feature svg {
    width: 16px;
    height: 16px;
    color: var(--color-primary);
    flex-shrink: 0;
}

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

/* 11. Authentication (login/register/forgot-pwd) Pages */
.auth-wrapper {
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 1.5rem;
    position: relative;
    background: radial-gradient(circle at center, rgba(139, 92, 246, 0.05) 0%, rgba(6, 182, 212, 0.02) 60%, rgba(0,0,0,0) 100%);
}

.auth-card {
    width: 100%;
    max-width: 480px;
    padding: 3rem;
}

.auth-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.auth-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.auth-header h2 {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 0.5rem;
}

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

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

.auth-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.auth-input {
    width: 100%;
    background: var(--bg-base);
    border: 1.5px solid var(--border-color);
    border-radius: 10px;
    padding: 0.85rem 1rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: var(--transition-normal);
}

.auth-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
}

.auth-input-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%239ca3af'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.25rem;
    padding-right: 2.5rem;
}

.auth-flex-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

.auth-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.auth-link-forgot {
    color: var(--color-primary);
    font-weight: 600;
}

.auth-link-forgot:hover {
    color: var(--color-secondary);
    text-decoration: underline;
}

.auth-submit-btn {
    width: 100%;
    margin-top: 1rem;
    padding: 0.9rem;
}

.auth-footer-text {
    text-align: center;
    margin-top: 2rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.auth-footer-text a {
    color: var(--color-primary);
    font-weight: 700;
}

.auth-footer-text a:hover {
    color: var(--color-secondary);
    text-decoration: underline;
}

/* Auth Alerts */
.auth-alert {
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
}

.auth-alert-error {
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.auth-alert-success {
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #a7f3d0;
}

/* Spinner Loader */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2.5px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: var(--text-primary);
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

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

/* 12. Footer Section */
.footer {
    background: #05080e;
    border-top: 1px solid var(--border-color);
    padding: 5rem 0 2rem 0;
    margin-top: auto;
    font-size: 0.95rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 4rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 800;
    font-size: 1.3rem;
}

.footer-tagline {
    color: var(--text-secondary);
    max-width: 280px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.footer-col h4 {
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 1.5rem;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.footer-links a {
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--color-primary);
    transform: translateX(3px);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
    margin-top: 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* 13. Interactive elements and animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}

/* 14. Responsive Styles (Mobile Adaptations) */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-content p {
        margin: 0 auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .why-grid, .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-card.popular {
        transform: none;
    }
}

@media (max-width: 768px) {
    .nav-menu, .nav-cta {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    /* Mobile Menu Drawer style (triggered by active class via js) */
    .nav-menu.mobile-active {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 4.5rem;
        left: 0;
        width: 100%;
        background: rgba(8, 12, 22, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: 3rem 2rem;
        border-bottom: 1px solid var(--border-color);
        z-index: 999;
        gap: 1.5rem;
        box-shadow: 0 10px 20px rgba(0,0,0,0.5);
    }
    
    .nav-cta.mobile-active {
        display: flex;
        width: 100%;
        justify-content: center;
        padding-top: 1rem;
        border-top: 1px solid var(--border-color);
    }
    
    .intro-grid, .problems-grid, .modules-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .why-grid, .pricing-grid, .integrations-grid {
        grid-template-columns: 1fr;
    }
    
    .integrations-grid {
        max-width: 320px;
        margin: 3.5rem auto 0 auto;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2.6rem;
    }
    
    .section-title {
        font-size: 2.1rem;
    }
    
    .auth-card {
        padding: 2rem 1.5rem;
    }
}