/* ============================================
   Auto Attender AI - Product Website Styles
   ============================================ */

/* --- CSS Variables --- */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #7c3aed;
    --accent: #06b6d4;
    --dark: #0f172a;
    --dark-2: #1e293b;
    --dark-3: #334155;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #2563eb 100%);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -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-glow: 0 0 40px rgba(37,99,235,0.15);
    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--dark);
    line-height: 1.7;
    background: var(--white);
    overflow-x: hidden;
}

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

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

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
    color: var(--gray-600);
    font-size: 1.05rem;
}

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

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: 16px;
}

.section-label::before {
    content: '';
    width: 32px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

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

.section {
    padding: 100px 0;
}

.section-alt {
    background: var(--gray-100);
}

.section-dark {
    background: var(--gradient-dark);
    color: var(--white);
}

.section-dark p {
    color: var(--gray-300);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(37,99,235,0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37,99,235,0.5);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--gray-200);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(37,99,235,0.05);
    transform: translateY(-2px);
}

.btn-outline-light {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.3);
}

.btn-outline-light:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
}

.btn-lg {
    padding: 18px 40px;
    font-size: 1.1rem;
    border-radius: var(--radius-lg);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 0.9rem;
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.navbar.scrolled {
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    border-bottom: 1px solid var(--gray-200);
    padding: 12px 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--white);
}

.navbar.scrolled .nav-brand {
    color: var(--dark);
}

.nav-brand-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.nav-brand span {
    font-weight: 300;
    opacity: 0.7;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
    list-style: none;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: rgba(255,255,255,0.85);
    position: relative;
}

.navbar.scrolled .nav-links a {
    color: var(--gray-600);
}

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

.navbar.scrolled .nav-links a:hover,
.navbar.scrolled .nav-links a.active {
    color: var(--primary);
}

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

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

.nav-cta .btn {
    padding: 10px 24px;
    font-size: 0.9rem;
}

/* Mobile nav toggle */
.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(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.navbar.scrolled .nav-toggle span {
    background: var(--dark);
}

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-dark);
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse-glow 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(124,58,237,0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse-glow 10s ease-in-out infinite reverse;
}

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

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    color: var(--white);
    margin-bottom: 24px;
}

.hero-text p {
    color: var(--gray-300);
    font-size: 1.2rem;
    margin-bottom: 40px;
    max-width: 520px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 50px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.hero-stat h3 {
    color: var(--white);
    font-size: 2rem;
}

.hero-stat p {
    color: var(--gray-400);
    font-size: 0.9rem;
}

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

.hero-phone {
    position: relative;
    width: 320px;
    height: 580px;
    background: var(--dark-2);
    border-radius: 40px;
    border: 3px solid var(--dark-3);
    padding: 20px;
    box-shadow: 0 40px 80px rgba(0,0,0,0.4), var(--shadow-glow);
    overflow: hidden;
}

.hero-phone::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 28px;
    background: var(--dark);
    border-radius: 20px;
    z-index: 5;
}

.phone-screen {
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 24px;
    height: 100%;
    padding: 50px 16px 16px;
    display: flex;
    flex-direction: column;
}

.phone-header {
    text-align: center;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 16px;
}

.phone-header .caller-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    margin: 0 auto 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.phone-header h4 {
    color: white;
    font-size: 1rem;
}

.phone-header p {
    color: var(--gray-400);
    font-size: 0.8rem;
}

.phone-chat {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow: hidden;
}

.chat-bubble {
    max-width: 85%;
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 0.82rem;
    line-height: 1.5;
    animation: fadeInUp 0.5s ease-out both;
}

.chat-bubble.ai {
    background: rgba(37,99,235,0.2);
    color: #93c5fd;
    border-bottom-left-radius: 4px;
    align-self: flex-start;
}

.chat-bubble.caller {
    background: rgba(255,255,255,0.1);
    color: var(--gray-300);
    border-bottom-right-radius: 4px;
    align-self: flex-end;
}

.chat-bubble:nth-child(1) { animation-delay: 0.5s; }
.chat-bubble:nth-child(2) { animation-delay: 1.5s; }
.chat-bubble:nth-child(3) { animation-delay: 2.5s; }
.chat-bubble:nth-child(4) { animation-delay: 3.5s; }
.chat-bubble:nth-child(5) { animation-delay: 4.5s; }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.phone-wave {
    display: flex;
    justify-content: center;
    gap: 3px;
    padding: 16px 0;
    margin-top: auto;
}

.phone-wave span {
    width: 3px;
    height: 20px;
    background: var(--primary-light);
    border-radius: 3px;
    animation: wave 1.2s ease-in-out infinite;
}

.phone-wave span:nth-child(1) { animation-delay: 0s; height: 12px; }
.phone-wave span:nth-child(2) { animation-delay: 0.1s; height: 20px; }
.phone-wave span:nth-child(3) { animation-delay: 0.2s; height: 28px; }
.phone-wave span:nth-child(4) { animation-delay: 0.3s; height: 20px; }
.phone-wave span:nth-child(5) { animation-delay: 0.4s; height: 14px; }
.phone-wave span:nth-child(6) { animation-delay: 0.5s; height: 22px; }
.phone-wave span:nth-child(7) { animation-delay: 0.6s; height: 16px; }

@keyframes wave {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(1.8); }
}

/* Floating badges around hero phone */
.hero-badge {
    position: absolute;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius);
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
    font-size: 0.85rem;
    font-weight: 500;
    animation: float 6s ease-in-out infinite;
    z-index: 3;
}

.hero-badge i {
    color: var(--accent);
    font-size: 1.1rem;
}

.hero-badge.badge-1 { top: 10%; right: -20px; animation-delay: 0s; }
.hero-badge.badge-2 { bottom: 25%; left: -30px; animation-delay: 2s; }
.hero-badge.badge-3 { bottom: 10%; right: -10px; animation-delay: 4s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* --- Feature Cards --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
    transform-origin: left;
}

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

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

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 20px;
    background: rgba(37,99,235,0.1);
    color: var(--primary);
}

.feature-card h4 {
    margin-bottom: 12px;
    color: var(--dark);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--gray-500);
}

/* Feature icon color variants */
.feature-card:nth-child(2) .feature-icon { background: rgba(124,58,237,0.1); color: var(--secondary); }
.feature-card:nth-child(3) .feature-icon { background: rgba(6,182,212,0.1); color: var(--accent); }
.feature-card:nth-child(4) .feature-icon { background: rgba(16,185,129,0.1); color: var(--success); }
.feature-card:nth-child(5) .feature-icon { background: rgba(245,158,11,0.1); color: var(--warning); }
.feature-card:nth-child(6) .feature-icon { background: rgba(239,68,68,0.1); color: var(--danger); }

/* --- How It Works --- */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    position: relative;
}

.steps-grid::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 15%;
    right: 15%;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0.3;
}

.step-card {
    text-align: center;
    position: relative;
    z-index: 2;
}

.step-number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    font-size: 1.8rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 8px 24px rgba(37,99,235,0.3);
}

.step-card h4 {
    margin-bottom: 10px;
}

.step-card p {
    font-size: 0.9rem;
}

/* --- Use Case Cards --- */
.usecase-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.usecase-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    display: flex;
    gap: 24px;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

.usecase-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.usecase-icon {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.usecase-card h4 {
    margin-bottom: 8px;
    color: var(--dark);
}

.usecase-card p {
    font-size: 0.9rem;
}

.usecase-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
}

.usecase-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(37,99,235,0.08);
    color: var(--primary);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* --- Testimonial / Social Proof --- */
.proof-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.proof-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.proof-card .stars {
    color: var(--warning);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.proof-card blockquote {
    color: var(--gray-300);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 20px;
    font-style: italic;
}

.proof-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.proof-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

.proof-author-info h5 {
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 600;
}

.proof-author-info p {
    color: var(--gray-400);
    font-size: 0.8rem;
}

/* --- CTA Section --- */
.cta-section {
    text-align: center;
    padding: 100px 0;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-section h2 {
    color: var(--white);
    margin-bottom: 16px;
    position: relative;
}

.cta-section p {
    color: rgba(255,255,255,0.8);
    font-size: 1.15rem;
    margin-bottom: 36px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
}

.cta-section .btn {
    position: relative;
}

/* --- Footer --- */
.footer {
    background: var(--dark);
    color: var(--gray-400);
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

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

.footer-brand .nav-brand {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--gray-400);
    line-height: 1.7;
}

.footer-col h5 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: var(--gray-400);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--white);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

/* --- Page Header (for inner pages) --- */
.page-header {
    background: var(--gradient-dark);
    padding: 80px 0 80px;
    padding-top: calc(80px + 80px); /* navbar height + spacing */
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(37,99,235,0.12) 0%, transparent 70%);
    border-radius: 50%;
}

.page-header h1 {
    color: var(--white);
    margin-bottom: 16px;
    position: relative;
}

.page-header p {
    color: var(--gray-300);
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

/* --- Features Detail Page --- */
.feature-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    padding: 80px 0;
    border-bottom: 1px solid var(--gray-200);
}

.feature-detail:last-child {
    border-bottom: none;
}

.feature-detail.reversed {
    direction: rtl;
}

.feature-detail.reversed > * {
    direction: ltr;
}

.feature-detail-content {
    max-width: 520px;
}

.feature-detail-content h3 {
    margin-bottom: 16px;
}

.feature-detail-content p {
    margin-bottom: 20px;
}

.feature-detail-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-detail-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--gray-600);
}

.feature-detail-list li i {
    color: var(--success);
    margin-top: 4px;
    flex-shrink: 0;
}

.feature-detail-visual {
    border-radius: var(--radius-xl);
    background: var(--gradient-dark);
    padding: 50px;
    min-height: 340px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.feature-detail-visual::before {
    content: '';
    position: absolute;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(37,99,235,0.2) 0%, rgba(124,58,237,0.08) 50%, transparent 70%);
    border-radius: 50%;
    animation: pulse-glow 6s ease-in-out infinite;
}

.feature-detail-visual::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(6,182,212,0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(124,58,237,0.08) 0%, transparent 50%);
}

.feature-visual-icon {
    width: 140px;
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--white);
    position: relative;
    z-index: 2;
    animation: float 4s ease-in-out infinite;
    background: rgba(37,99,235,0.15);
    border: 1px solid rgba(37,99,235,0.25);
    border-radius: 32px;
    box-shadow: 0 20px 60px rgba(37,99,235,0.2), inset 0 1px 0 rgba(255,255,255,0.1);
}

/* --- Contact Page --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-item-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    background: rgba(37,99,235,0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-item h4 {
    margin-bottom: 4px;
    font-size: 1rem;
}

.contact-item p {
    font-size: 0.9rem;
}

.contact-item a {
    color: var(--primary);
    font-weight: 500;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-form {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--dark);
    background: var(--white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* --- About Page --- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content h2 {
    margin-bottom: 20px;
}

.about-content p {
    margin-bottom: 16px;
}

.about-values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 30px;
}

.about-value {
    padding: 24px;
    border-radius: var(--radius);
    background: var(--gray-100);
}

.about-value h4 {
    font-size: 1rem;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.about-value p {
    font-size: 0.85rem;
}

.about-visual {
    border-radius: var(--radius-xl);
    background: var(--gradient-dark);
    padding: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    position: relative;
    overflow: hidden;
}

.about-visual::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(37,99,235,0.12) 0%, transparent 70%);
    border-radius: 50%;
}

.about-logo-display {
    position: relative;
    z-index: 2;
    text-align: center;
}

.about-logo-display .nav-brand-icon {
    width: 100px;
    height: 100px;
    font-size: 3rem;
    border-radius: 24px;
    margin: 0 auto 20px;
}

.about-logo-display h3 {
    color: white;
    font-size: 1.8rem;
}

.about-logo-display p {
    color: var(--gray-400);
    margin-top: 8px;
}

/* Team / Company */
.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.stat-card {
    text-align: center;
    padding: 40px 30px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.stat-card h3 {
    font-size: 2.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}

.stat-card p {
    font-weight: 500;
}

/* --- Pricing Section --- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    align-items: start;
}

.pricing-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    border: 2px solid var(--gray-200);
    transition: var(--transition);
    text-align: center;
}

.pricing-card.featured {
    border-color: var(--primary);
    position: relative;
    transform: scale(1.05);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 6px 20px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-card h4 {
    font-size: 1.2rem;
    margin-bottom: 16px;
}

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

.pricing-price .amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--dark);
}

.pricing-price .period {
    color: var(--gray-500);
    font-size: 0.9rem;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 30px;
}

.pricing-features li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--gray-600);
    border-bottom: 1px solid var(--gray-100);
}

.pricing-features li:last-child {
    border-bottom: none;
}

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

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

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

/* --- Animations --- */
/* Elements are visible by default; JS adds .animate-ready to enable transitions */
.animate-ready .fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-ready .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.animate-ready .fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-ready .fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.animate-ready .fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-ready .fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

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

    .hero-text p {
        margin-left: auto;
        margin-right: auto;
    }

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

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

    .hero-visual {
        display: none;
    }

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

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

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

    .feature-detail {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .feature-detail.reversed {
        direction: ltr;
    }

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

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

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

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

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

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

@media (max-width: 768px) {
    .navbar {
        padding: 10px 0;
    }

    .navbar .container {
        padding: 0 16px;
    }

    .nav-brand {
        font-size: 1.1rem;
        gap: 8px;
    }

    .nav-brand-icon {
        width: 34px;
        height: 34px;
        font-size: 1rem;
        border-radius: 8px;
    }

    .nav-cta {
        display: none;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        box-shadow: var(--shadow-lg);
        border-radius: 0 0 var(--radius) var(--radius);
    }

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

    .nav-links a {
        color: var(--dark) !important;
    }

    .nav-toggle {
        display: flex;
    }

    .page-header {
        padding: 120px 0 50px;
        border-top: 55px solid transparent;
    }

    .page-header h1 {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
    }

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

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

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

    .usecase-card {
        flex-direction: column;
        padding: 24px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

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

    .about-values {
        grid-template-columns: 1fr;
    }

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

    .section {
        padding: 60px 0;
    }

    .contact-form {
        padding: 24px;
    }

    .feature-detail {
        gap: 30px;
        padding: 40px 0;
    }

    .feature-detail-visual {
        min-height: 220px;
        padding: 30px;
    }

    .feature-visual-icon {
        width: 100px;
        height: 100px;
        font-size: 2.8rem;
        border-radius: 24px;
    }

    .cta-section {
        padding: 60px 0;
    }

    .cta-section h2 {
        font-size: clamp(1.5rem, 5vw, 2rem);
    }

    .proof-card {
        padding: 24px;
    }
}

/* --- Utility Classes --- */
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }
.mb-16 { margin-bottom: 16px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.mb-60 { margin-bottom: 60px; }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mx-auto { margin-left: auto; margin-right: auto; }
.max-w-700 { max-width: 700px; }
.max-w-800 { max-width: 800px; }