/* =============================================
   PoliMind Landing Page - Style Sheet
   polimind.net - Tanıtım Sitesi
   ============================================= */

/* ===== VARIABLES ===== */
:root {
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --primary-light: #38bdf8;
    --primary-glow: rgba(14, 165, 233, 0.15);
    --accent: #06d6a0;
    --purple: #a78bfa;
    --orange: #f59e0b;
    --red: #ef4444;
    --emerald: #10b981;

    --bg-body: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #263548;
    --bg-surface: #0f172a;
    --border: rgba(148, 163, 184, 0.12);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-white: #ffffff;

    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.35);
    --transition: 250ms ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

a:hover {
    color: var(--primary-light);
}

ul {
    list-style: none;
}

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

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

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 500px;
    margin: 0 auto;
}

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    background: var(--primary-glow);
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    font-family: inherit;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--text-white);
    box-shadow: 0 4px 16px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(14, 165, 233, 0.5);
    color: var(--text-white);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    background: rgba(148, 163, 184, 0.08);
    border-color: var(--primary);
    color: var(--primary);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1rem;
}

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: all var(--transition);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-white);
    font-size: 1.3rem;
}

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

.nav-logo span {
    font-weight: 300;
}

.nav-logo strong {
    font-weight: 800;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links a {
    padding: 8px 16px;
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-links a:hover {
    color: var(--text-white);
    background: rgba(148, 163, 184, 0.08);
}

.nav-cta {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
    color: var(--text-white) !important;
    padding: 10px 22px !important;
    border-radius: var(--radius) !important;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(14, 165, 233, 0.4);
}

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

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

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-glow {
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.12), transparent 70%);
    border-radius: 50%;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(148, 163, 184, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: 24px;
    background: var(--primary-glow);
    color: var(--primary);
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease both;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 500px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-stats {
    display: flex;
    gap: 32px;
    margin-top: 48px;
    animation: fadeInUp 0.6s ease 0.4s both;
}

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

.hero-stat strong {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary);
}

.hero-stat span {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Hero Mockup */
.hero-visual {
    animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-mockup {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.mockup-header {
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border);
}

.mockup-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.mockup-dot.red {
    background: #ef4444;
}

.mockup-dot.yellow {
    background: #f59e0b;
}

.mockup-dot.green {
    background: #22c55e;
}

.mockup-title {
    margin-left: 8px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.mockup-body {
    display: flex;
    min-height: 260px;
}

.mockup-sidebar {
    width: 48px;
    background: rgba(0, 0, 0, 0.15);
    border-right: 1px solid var(--border);
    padding: 12px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.mockup-menu-item {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.mockup-menu-item.active {
    background: var(--primary-glow);
    color: var(--primary);
}

.mockup-content {
    flex: 1;
    padding: 16px;
}

.mockup-stat-row {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.mockup-stat {
    flex: 1;
    padding: 12px;
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem;
    font-weight: 600;
}

.mockup-stat.blue {
    background: rgba(14, 165, 233, 0.1);
    color: var(--primary);
}

.mockup-stat.green {
    background: rgba(16, 185, 129, 0.1);
    color: var(--emerald);
}

.mockup-stat.orange {
    background: rgba(245, 158, 11, 0.1);
    color: var(--orange);
}

.mockup-stat i {
    font-size: 1.2rem;
}

.mockup-chart {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 100px;
    padding: 8px 0;
}

.chart-bar {
    flex: 1;
    background: linear-gradient(to top, var(--primary), var(--accent));
    border-radius: 4px 4px 0 0;
    opacity: 0.7;
    animation: chartGrow 1s ease both;
}

@keyframes chartGrow {
    from {
        height: 0 !important;
    }
}

/* ===== FEATURES ===== */
.features {
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 20px;
}

.feature-icon.blue {
    background: rgba(14, 165, 233, 0.1);
    color: var(--primary);
}

.feature-icon.green {
    background: rgba(6, 214, 160, 0.1);
    color: var(--accent);
}

.feature-icon.purple {
    background: rgba(167, 139, 250, 0.1);
    color: var(--purple);
}

.feature-icon.orange {
    background: rgba(245, 158, 11, 0.1);
    color: var(--orange);
}

.feature-icon.emerald {
    background: rgba(16, 185, 129, 0.1);
    color: var(--emerald);
}

.feature-icon.red {
    background: rgba(239, 68, 68, 0.1);
    color: var(--red);
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== HOW IT WORKS ===== */
.how-it-works {
    padding: 100px 0;
    background: linear-gradient(180deg, rgba(14, 165, 233, 0.03), transparent);
}

.steps-grid {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
}

.step-card {
    flex: 1;
    max-width: 300px;
    text-align: center;
    padding: 32px 24px;
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.1rem;
    margin: 0 auto 16px;
}

.step-icon {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
    margin: 0 auto 20px;
}

.step-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-card p {
    color: var(--text-secondary);
    font-size: 0.88rem;
}

.step-line {
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    margin-top: 80px;
    opacity: 0.4;
}

/* ===== POLI SECTION ===== */
.poli-section {
    padding: 100px 0;
}

.poli-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.poli-text h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.poli-text p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.poli-features {
    margin-bottom: 32px;
}

.poli-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.poli-features li i {
    color: var(--accent);
    font-size: 1rem;
}

.poli-visual {
    text-align: center;
}

.poli-mascot-img {
    height: 180px;
    margin-bottom: 24px;
    animation: poliFloat 3s ease-in-out infinite;
    filter: drop-shadow(0 8px 24px rgba(14, 165, 233, 0.3));
}

@keyframes poliFloat {

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

    50% {
        transform: translateY(-8px);
    }
}

.poli-chat-preview {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    text-align: left;
    max-width: 380px;
    margin: 0 auto;
}

.chat-bubble {
    padding: 12px 16px;
    border-radius: 14px;
    font-size: 0.85rem;
    margin-bottom: 12px;
    line-height: 1.5;
    max-width: 85%;
}

.chat-bubble.incoming {
    background: rgba(14, 165, 233, 0.1);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
}

.chat-bubble.outgoing {
    background: var(--primary);
    color: var(--text-white);
    margin-left: auto;
    border-bottom-right-radius: 4px;
}

/* ===== MOBILE SECTION ===== */
.mobile-section {
    padding: 100px 0;
    background: linear-gradient(180deg, transparent, rgba(6, 214, 160, 0.03));
}

.mobile-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.mobile-feature {
    text-align: center;
    padding: 32px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.mobile-feature:hover {
    transform: translateY(-4px);
    border-color: rgba(6, 214, 160, 0.3);
}

.mobile-feature i {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 16px;
}

.mobile-feature h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.mobile-feature p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ===== PRICING ===== */
.pricing {
    padding: 100px 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 960px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 36px 28px;
    text-align: center;
    position: relative;
    transition: all var(--transition);
}

.pricing-card:hover {
    transform: translateY(-4px);
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: 0 0 40px rgba(14, 165, 233, 0.15);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-4px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 18px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--text-white);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-header {
    margin-bottom: 24px;
}

.pricing-header i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.pricing-header h3 {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.pricing-price {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--text-white);
    margin-bottom: 4px;
}

.pricing-header p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.pricing-features {
    text-align: left;
    margin-bottom: 28px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.88rem;
    color: var(--text-primary);
}

.pricing-features li i {
    color: var(--accent);
    font-size: 0.85rem;
    width: 18px;
    text-align: center;
}

.pricing-features li.disabled {
    color: var(--text-muted);
    opacity: 0.5;
}

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

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

/* ===== CONTACT ===== */
.contact {
    padding: 100px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
    align-items: start;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 16px;
    transition: all var(--transition);
}

.contact-item:hover {
    border-color: var(--primary);
    transform: translateX(4px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    background: var(--primary-glow);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.contact-item a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-body);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    margin-bottom: 16px;
    transition: border-color var(--transition);
    outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

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

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

/* ===== FOOTER ===== */
.footer {
    padding: 64px 0 32px;
    border-top: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.2);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 1.3rem;
    color: var(--text-white);
}

.footer-logo img {
    height: 36px;
}

.footer-logo span {
    font-weight: 300;
}

.footer-logo strong {
    font-weight: 800;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.88rem;
}

.footer-links h4 {
    font-size: 0.88rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-links a {
    display: block;
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 5px 0;
}

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

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ===== POLI CHAT WIDGET ===== */
.poli-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 900;
    transition: all var(--transition);
}

.poli-fab:hover {
    transform: scale(1.12);
}

.poli-fab-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 4px 12px rgba(14, 165, 233, 0.4));
    animation: poliFloat 3s ease-in-out infinite;
}

.poli-greeting {
    position: fixed;
    bottom: 98px;
    right: 20px;
    z-index: 899;
    animation: greetingSlideIn 0.5s ease 2s both;
}

@keyframes greetingSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.9);
    }

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

.poli-greeting-bubble {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px 14px 4px 14px;
    padding: 14px 18px;
    max-width: 260px;
    font-size: 0.82rem;
    color: var(--text-primary);
    line-height: 1.5;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.poli-greeting-bubble::after {
    content: '';
    position: absolute;
    bottom: -8px;
    right: 24px;
    width: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid var(--bg-card);
}

.poli-greeting-close {
    position: absolute;
    top: 4px;
    right: 8px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
}

.poli-greeting.hidden {
    display: none;
}

/* Chat Window */
.chat-window {
    position: fixed;
    bottom: 100px;
    right: 24px;
    width: 380px;
    max-height: 520px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    z-index: 950;
    overflow: hidden;
}

.chat-window.open {
    display: flex;
}

.chat-window.fullscreen {
    bottom: 0;
    right: 0;
    left: 0;
    top: 0;
    width: 100%;
    max-height: 100%;
    border-radius: 0;
}

.chat-header {
    padding: 14px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border);
}

.chat-header-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 0.92rem;
}

.chat-header-actions {
    display: flex;
    gap: 4px;
}

.chat-action-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.chat-action-btn:hover {
    color: var(--text-white);
    background: rgba(148, 163, 184, 0.1);
}

.chat-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

.chat-messages {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-msg {
    display: flex;
    gap: 10px;
    max-width: 85%;
}

.chat-msg.incoming {
    align-self: flex-start;
}

.chat-msg.outgoing {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.chat-msg-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.chat-msg-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.chat-msg-bubble {
    padding: 10px 14px;
    border-radius: 14px;
    font-size: 0.85rem;
    line-height: 1.5;
}

.incoming .chat-msg-bubble {
    background: rgba(14, 165, 233, 0.08);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
}

.outgoing .chat-msg-bubble {
    background: var(--primary);
    color: var(--text-white);
    border-bottom-right-radius: 4px;
}

.chat-msg-time {
    font-size: 0.68rem;
    color: var(--text-muted);
    margin-top: 4px;
    padding: 0 4px;
}

.chat-input-area {
    padding: 12px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 8px;
}

.chat-input {
    flex: 1;
    padding: 10px 14px;
    background: var(--bg-body);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.88rem;
    outline: none;
}

.chat-input:focus {
    border-color: var(--primary);
}

.chat-input::placeholder {
    color: var(--text-muted);
}

.chat-send {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--text-white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.chat-send:hover {
    transform: scale(1.05);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

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

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 2.8rem;
    }

    .hero-content p {
        margin: 0 auto 32px;
    }

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

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

    .hero-visual {
        display: none;
    }

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

    .poli-content {
        grid-template-columns: 1fr;
    }

    .poli-visual {
        order: -1;
    }

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

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

    .pricing-card.featured:hover {
        transform: scale(1.02) translateY(-4px);
    }

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

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

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }

    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(16px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 16px;
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
    }

    .nav-links.open {
        opacity: 1;
        visibility: visible;
    }

    .nav-links a {
        font-size: 1.1rem !important;
        padding: 12px 24px !important;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

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

    .steps-grid {
        flex-direction: column;
        align-items: center;
    }

    .step-line {
        width: 2px;
        height: 40px;
        margin: 0;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 4px;
        text-align: center;
    }

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

    .mobile-features {
        grid-template-columns: 1fr;
    }

    /* Chat mobile */
    .chat-window {
        bottom: 0;
        right: 0;
        left: 0;
        width: 100%;
        max-height: 100vh;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }

    .chat-window.fullscreen {
        border-radius: 0;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.8rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

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

    .section-container {
        padding: 0 16px;
    }
}