/* ============================================
   AIZapp — Design System
   Dark theme + Green Neon (#00FF88)
   ============================================ */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ---- CSS Variables ---- */
:root {
    /* Colors */
    --primary: #00FF88;
    --primary-dark: #00CC6A;
    --primary-light: #33FFAA;
    --primary-glow: rgba(0, 255, 136, 0.3);
    --primary-glow-strong: rgba(0, 255, 136, 0.5);

    --bg-primary: #0A0A0F;
    --bg-secondary: #111118;
    --bg-tertiary: #1A1A24;
    --bg-card: rgba(26, 26, 36, 0.6);
    --bg-glass: rgba(26, 26, 36, 0.4);

    --text-primary: #FFFFFF;
    --text-secondary: #B0B0C0;
    --text-muted: #6B6B80;

    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(0, 255, 136, 0.3);

    --gradient-hero: linear-gradient(135deg, #0A0A0F 0%, #0D1A12 50%, #0A0A0F 100%);
    --gradient-card: linear-gradient(135deg, rgba(0, 255, 136, 0.05) 0%, rgba(0, 0, 0, 0) 100%);
    --gradient-btn: linear-gradient(135deg, #00FF88 0%, #00CC6A 100%);
    --gradient-text: linear-gradient(135deg, #00FF88 0%, #00FFCC 100%);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(0, 255, 136, 0.2);
    --shadow-glow-strong: 0 0 60px rgba(0, 255, 136, 0.3);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --font-size-6xl: 4.5rem;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Borders */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-spring: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

ul,
ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: inherit;
}

/* ---- Utilities ---- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.section {
    padding: var(--space-4xl) 0;
    position: relative;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--primary);
    margin-bottom: var(--space-lg);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.7;
}

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

.text-center .section-subtitle {
    margin: 0 auto;
}

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

.highlight {
    color: var(--primary);
}

/* ---- Scroll Reveal ---- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 {
    transition-delay: 0.1s;
}

.reveal-delay-2 {
    transition-delay: 0.2s;
}

.reveal-delay-3 {
    transition-delay: 0.3s;
}

.reveal-delay-4 {
    transition-delay: 0.4s;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: all var(--transition-base);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: var(--space-sm) 0;
}

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

.navbar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--text-primary);
}

.navbar-logo .logo-img {
    height: 40px;
    width: auto;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.navbar-menu a {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

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

.navbar-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-base);
}

.navbar-menu a:hover::after {
    width: 100%;
}

.navbar-cta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    padding: var(--space-sm);
}

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

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 28px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-btn);
    color: #000;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-strong);
    color: #000;
}

.btn-primary:active {
    transform: translateY(0);
}

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

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(0, 255, 136, 0.05);
    color: var(--primary);
}

.btn-large {
    padding: 16px 40px;
    font-size: var(--font-size-base);
}

.btn-icon {
    font-size: 1.1em;
}

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

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 6px 16px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.2);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--primary);
    margin-bottom: var(--space-xl);
    animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(0, 255, 136, 0.2);
    }

    50% {
        box-shadow: 0 0 0 8px rgba(0, 255, 136, 0);
    }
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 900;
    line-height: 1.05;
    margin-bottom: var(--space-xl);
    letter-spacing: -2px;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: var(--space-2xl);
}

.hero-stat {
    text-align: left;
}

.hero-stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--primary);
}

.hero-stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* Hero Phone Mockup */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 320px;
    height: 640px;
    background: var(--bg-tertiary);
    border-radius: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {

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

    50% {
        transform: translateY(-15px);
    }
}

.phone-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 30px;
    background: var(--bg-primary);
    border-radius: 0 0 20px 20px;
    z-index: 2;
}

.phone-screen {
    padding: 45px 16px 16px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.chat-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border);
    margin-bottom: var(--space-md);
}

.chat-avatar {
    width: 40px;
    height: 40px;
    background: var(--gradient-btn);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.chat-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.chat-status {
    font-size: var(--font-size-xs);
    color: var(--primary);
}

.chat-messages {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    overflow: hidden;
}

.chat-msg {
    max-width: 85%;
    padding: 10px 14px;
    border-radius: 16px;
    font-size: var(--font-size-sm);
    line-height: 1.4;
    opacity: 0;
    animation: msg-appear 0.4s ease forwards;
}

.chat-msg.user {
    align-self: flex-end;
    background: #005C4B;
    border-bottom-right-radius: 4px;
    color: var(--text-primary);
}

.chat-msg.bot {
    align-self: flex-start;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-bottom-left-radius: 4px;
    color: var(--text-secondary);
}

.chat-msg:nth-child(1) {
    animation-delay: 0.5s;
}

.chat-msg:nth-child(2) {
    animation-delay: 1.5s;
}

.chat-msg:nth-child(3) {
    animation-delay: 2.5s;
}

.chat-msg:nth-child(4) {
    animation-delay: 3.5s;
}

.chat-msg:nth-child(5) {
    animation-delay: 4.5s;
}

.chat-msg:nth-child(6) {
    animation-delay: 5.5s;
}

@keyframes msg-appear {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.95);
    }

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

.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    align-self: flex-start;
    opacity: 0;
    animation: msg-appear 0.4s ease forwards;
    animation-delay: 1s;
}

.typing-indicator span {
    width: 6px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typing-dot 1.4s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing-dot {

    0%,
    60%,
    100% {
        transform: translateY(0);
        opacity: 0.4;
    }

    30% {
        transform: translateY(-6px);
        opacity: 1;
    }
}

/* Floating particles around phone */
.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: particle-float 8s ease-in-out infinite;
}

.particle:nth-child(1) {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.particle:nth-child(2) {
    top: 80%;
    left: 20%;
    animation-delay: 2s;
}

.particle:nth-child(3) {
    top: 30%;
    right: 10%;
    animation-delay: 4s;
}

.particle:nth-child(4) {
    top: 70%;
    right: 20%;
    animation-delay: 1s;
}

.particle:nth-child(5) {
    top: 50%;
    left: 5%;
    animation-delay: 3s;
}

@keyframes particle-float {

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

    25% {
        transform: translate(20px, -30px);
    }

    50% {
        transform: translate(-10px, 20px);
    }

    75% {
        transform: translate(15px, 10px);
    }
}

/* ============================================
   PROBLEMS SECTION
   ============================================ */
.problems {
    background: var(--bg-secondary);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
}

.problem-card {
    padding: var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #FF4444, #FF6666);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.problem-card:hover::before {
    opacity: 1;
}

.problem-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 68, 68, 0.3);
    box-shadow: var(--shadow-md);
}

.problem-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 68, 68, 0.1);
    border-radius: var(--radius-md);
    font-size: 24px;
    margin-bottom: var(--space-lg);
}

.problem-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.problem-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   SOLUTION SECTION
   ============================================ */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
}

.solution-card {
    padding: var(--space-xl);
    background: var(--gradient-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    text-align: center;
}

.solution-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.solution-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 255, 136, 0.1);
    border-radius: var(--radius-lg);
    font-size: 28px;
    margin: 0 auto var(--space-lg);
}

.solution-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.solution-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   HOW IT WORKS
   ============================================ */
.how-it-works {
    background: var(--bg-secondary);
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
    margin-top: var(--space-2xl);
    position: relative;
}

.steps-container::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 15%;
    right: 15%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), rgba(0, 255, 136, 0.2), var(--primary));
    z-index: 0;
}

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

.step-number {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 2px solid var(--primary);
    border-radius: 50%;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--primary);
    margin: 0 auto var(--space-lg);
    position: relative;
    box-shadow: var(--shadow-glow);
}

.step-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.step-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 280px;
    margin: 0 auto;
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
}

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

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    font-size: 36px;
    margin-bottom: var(--space-md);
}

.feature-title {
    font-size: var(--font-size-base);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.feature-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ============================================
   DEMO / INTERACTIVE CHAT
   ============================================ */
.demo {
    background: var(--bg-secondary);
}

.demo-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    margin-top: var(--space-2xl);
}

.demo-chat {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    max-width: 420px;
}

.demo-chat-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: #075E54;
    color: white;
}

.demo-chat-header .avatar {
    width: 42px;
    height: 42px;
    background: var(--gradient-btn);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.demo-chat-header .name {
    font-weight: 600;
    font-size: var(--font-size-base);
}

.demo-chat-header .status {
    font-size: var(--font-size-xs);
    opacity: 0.8;
}

.demo-chat-body {
    padding: var(--space-lg);
    min-height: 400px;
    max-height: 400px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.demo-msg {
    max-width: 80%;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: var(--font-size-sm);
    line-height: 1.5;
    position: relative;
}

.demo-msg.sent {
    align-self: flex-end;
    background: #005C4B;
    color: white;
    border-bottom-right-radius: 4px;
}

.demo-msg.received {
    align-self: flex-start;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-bottom-left-radius: 4px;
}

.demo-msg .time {
    font-size: 10px;
    opacity: 0.6;
    text-align: right;
    margin-top: 4px;
}

.demo-input-bar {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

.demo-input-bar input {
    flex: 1;
    padding: 10px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition-fast);
}

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

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

.demo-send-btn {
    width: 40px;
    height: 40px;
    background: var(--gradient-btn);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #000;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.demo-send-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

.demo-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.demo-feature-item {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.demo-feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 255, 136, 0.1);
    border-radius: var(--radius-md);
    font-size: 22px;
    flex-shrink: 0;
}

.demo-feature-text h4 {
    font-size: var(--font-size-base);
    font-weight: 700;
    margin-bottom: 4px;
}

.demo-feature-text p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ============================================
   NICHES SECTION
   ============================================ */
.niches-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
}

.niche-card {
    padding: var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
    cursor: default;
}

.niche-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.niche-icon {
    font-size: 40px;
    margin-bottom: var(--space-md);
}

.niche-title {
    font-size: var(--font-size-base);
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.niche-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials {
    background: var(--bg-secondary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
}

.testimonial-card {
    padding: var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 16px;
    left: 20px;
    font-size: 60px;
    color: var(--primary);
    opacity: 0.2;
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.testimonial-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--gradient-card);
    border: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.testimonial-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.testimonial-role {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.testimonial-stars {
    color: #FFD700;
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-md);
}

/* ============================================
   PRICING SECTION
   ============================================ */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
    align-items: start;
}

.pricing-card {
    padding: var(--space-2xl);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
}

.pricing-card.popular {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
    transform: scale(1.05);
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.05) 0%, var(--bg-card) 100%);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 20px;
    background: var(--gradient-btn);
    color: #000;
    font-size: var(--font-size-xs);
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.pricing-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.pricing-price {
    font-size: var(--font-size-5xl);
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.pricing-price span {
    font-size: var(--font-size-lg);
    font-weight: 400;
    color: var(--text-muted);
}

.pricing-period {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-xl);
}

.pricing-features {
    text-align: left;
    margin-bottom: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

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

.pricing-feature .check {
    color: var(--primary);
    font-weight: bold;
}

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

/* ============================================
   FAQ SECTION
   ============================================ */
.faq {
    background: var(--bg-secondary);
}

.faq-list {
    max-width: 800px;
    margin: var(--space-2xl) auto 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color var(--transition-base);
}

.faq-item.active {
    border-color: var(--border-hover);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-xl);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    transition: color var(--transition-fast);
    width: 100%;
    background: none;
    text-align: left;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    font-size: var(--font-size-xl);
    color: var(--primary);
    transition: transform var(--transition-base);
    flex-shrink: 0;
    margin-left: var(--space-md);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq-answer-content {
    padding: 0 var(--space-xl) var(--space-lg);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   CTA FINAL
   ============================================ */
.cta-final {
    text-align: center;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.cta-final::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.cta-final .container {
    position: relative;
    z-index: 1;
}

.cta-final-title {
    font-size: var(--font-size-4xl);
    font-weight: 900;
    margin-bottom: var(--space-md);
}

.cta-final-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.7;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: var(--space-2xl) 0;
}

.footer .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-brand {
    font-size: var(--font-size-lg);
    font-weight: 800;
}

.footer-brand span {
    color: var(--primary);
}

.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-links a {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

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

.footer-copy {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

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

    .hero-content {
        max-width: 100%;
    }

    .hero-subtitle {
        max-width: 100%;
        margin: 0 auto var(--space-2xl);
    }

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

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

    .hero-visual {
        order: -1;
    }

    .phone-mockup {
        width: 280px;
        height: 560px;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

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

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

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

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

@media (max-width: 768px) {
    .section {
        padding: var(--space-3xl) 0;
    }

    .container {
        padding: 0 var(--space-md);
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
        letter-spacing: -1px;
    }

    .navbar-menu {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-primary);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-2xl);
        z-index: 999;
    }

    .navbar-menu.active {
        display: flex;
    }

    .navbar-menu a {
        font-size: var(--font-size-xl);
    }

    .mobile-toggle {
        display: flex;
        z-index: 1001;
    }

    .mobile-close {
        position: absolute;
        top: var(--space-lg);
        right: var(--space-lg);
        font-size: 24px;
        color: var(--text-primary);
        background: none;
        border: none;
        cursor: pointer;
        display: none;
    }

    .navbar-menu.active .mobile-close {
        display: block;
    }

    .problems-grid,
    .solution-grid,
    .steps-container,
    .testimonials-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

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

    .demo-container {
        grid-template-columns: 1fr;
    }

    .demo-chat {
        max-width: 100%;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: var(--space-lg);
    }

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

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

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

    .pricing-price {
        font-size: var(--font-size-4xl);
    }

    .phone-mockup {
        width: 260px;
        height: 520px;
    }
}