/* ========================================
   PROCODA - Quixiflow-inspired Modern Dark Design
   ======================================== */

/* CSS Variables */
:root {
    /* Brand Colors */
    --primary: #7C5CFF;
    --primary-dark: #5B3FD9;
    --primary-light: #9D85FF;
    --accent: #00E5A0;
    --accent-dark: #00C589;
    --accent-light: #33EEBB;
    --accent-orange: #FF6B35;
    --accent-pink: #FF4D8D;
    
    /* Dark Theme Colors */
    --bg-dark: #0A0A0F;
    --bg-card: #12121A;
    --bg-card-hover: #1A1A25;
    --bg-surface: #16161F;
    --bg-elevated: #1E1E2A;
    
    /* Text Colors */
    --text-white: #FFFFFF;
    --text-light: #E8E8ED;
    --text-muted: #8A8A9A;
    --text-dark: #5A5A6A;
    
    /* Border */
    --border-color: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.12);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --gradient-card: linear-gradient(180deg, rgba(124, 92, 255, 0.1) 0%, transparent 100%);
    --gradient-glow: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(124, 92, 255, 0.15), transparent);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 60px rgba(124, 92, 255, 0.3);
    
    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light mode overrides */
[data-theme="light"] {
    --bg-dark: #F8F9FC;
    --bg-card: #FFFFFF;
    --bg-card-hover: #F3F4F8;
    --bg-surface: #F0F1F5;
    --bg-elevated: #FFFFFF;
    --text-white: #0A0A0F;
    --text-light: #1A1A25;
    --text-muted: #6A6A7A;
    --text-dark: #9A9AAA;
    --border-color: rgba(0, 0, 0, 0.08);
    --border-light: rgba(0, 0, 0, 0.12);
}

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

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

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

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

input, button, textarea, select {
    font: inherit;
}

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

/* ========================================
   Container
   ======================================== */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-8);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-4);
    }
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.1;
    color: var(--text-white);
}

h1 { 
    font-size: clamp(3rem, 8vw, 5.5rem); 
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 { 
    font-size: clamp(2.5rem, 5vw, 4rem); 
    letter-spacing: -0.02em;
}

h3 { 
    font-size: clamp(1.5rem, 3vw, 2rem); 
}

h4 { 
    font-size: 1.25rem; 
}

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

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

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-8);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition);
}

.btn:hover svg {
    transform: translateX(4px);
}

.btn-primary {
    background: var(--primary);
    color: var(--text-white);
    box-shadow: 0 4px 20px rgba(124, 92, 255, 0.4);
}

.btn-nav {
    color: #ffffff !important;
}

.btn-primary:hover {
    background: var(--primary-light);
    box-shadow: 0 6px 30px rgba(124, 92, 255, 0.5);
    transform: translateY(-2px);
}

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

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

.btn-accent {
    background: var(--accent);
    color: var(--bg-dark);
}

.btn-accent:hover {
    background: var(--accent-light);
    box-shadow: 0 6px 30px rgba(0, 229, 160, 0.4);
}

.btn-ghost {
    background: transparent;
    color: var(--text-light);
    padding: var(--space-2) var(--space-4);
}

.btn-ghost:hover {
    color: var(--text-white);
}

.btn-lg {
    padding: var(--space-5) var(--space-10);
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* Arrow Button Style */
.btn-arrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-light);
    font-weight: 500;
    transition: all var(--transition);
}

.btn-arrow::after {
    content: '→';
    transition: transform var(--transition);
}

.btn-arrow:hover {
    color: var(--accent);
}

.btn-arrow:hover::after {
    transform: translateX(4px);
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-4) 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition);
}

[data-theme="light"] .navbar {
    background: rgba(248, 249, 252, 0.9);
}

.navbar.scrolled {
    border-bottom-color: var(--border-color);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-white);
}

.logo-img {
    height: 32px;
    width: auto;
    object-fit: contain;
    background: transparent;
    mix-blend-mode: normal;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color var(--transition);
    position: relative;
    white-space: nowrap;
}

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

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

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

.nav-links .btn-nav {
    margin-left: var(--space-4);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    position: absolute;
    right: 0;
}

.lang-switch, .theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    color: var(--text-muted);
}

.lang-switch:hover, .theme-toggle:hover {
    background: var(--bg-elevated);
    border-color: var(--primary);
    color: var(--text-white);
}

.lang-switch {
    width: auto;
    padding: 0 var(--space-4);
    font-size: 0.8125rem;
    font-weight: 600;
    gap: var(--space-2);
}

.lang-inactive {
    color: var(--text-dark);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

.icon-moon {
    display: none;
}

[data-theme="light"] .icon-sun {
    display: none;
}

[data-theme="light"] .icon-moon {
    display: block;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
}

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

@media (max-width: 1024px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        gap: var(--space-8);
        background: var(--bg-dark);
        transition: right var(--transition-slow);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links a {
        font-size: 1.5rem;
    }
    
    .nav-links .btn-nav {
        margin-left: 0;
        margin-top: var(--space-6);
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-32) 0 var(--space-20);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 60% at 50% 0%, rgba(124, 92, 255, 0.2), transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 20%, rgba(0, 229, 160, 0.1), transparent 50%),
        radial-gradient(ellipse 40% 40% at 20% 80%, rgba(255, 107, 53, 0.08), transparent);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, black, transparent);
}

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.5;
    animation: float 15s infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 0.5;
    }
    90% {
        opacity: 0.5;
    }
    100% {
        transform: translateY(-100vh) scale(1);
        opacity: 0;
    }
}

.hero-content {
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-5);
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: var(--space-8);
    animation: fadeInUp 0.6s ease;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
    box-shadow: 0 0 10px var(--accent);
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.3);
    }
}

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

.hero-title {
    margin-bottom: var(--space-8);
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-title span {
    display: block;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto var(--space-10);
    line-height: 1.7;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-20);
    animation: fadeInUp 0.6s ease 0.3s both;
}

/* Marquee Section */
.marquee-section {
    padding: var(--space-6) 0;
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}

.marquee-wrapper {
    position: relative;
}

.marquee-track {
    display: flex;
    animation: marquee 40s linear infinite;
}

.marquee-track:hover {
    animation-play-state: paused;
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.marquee-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-8);
    white-space: nowrap;
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
}

.marquee-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.marquee-item.problem svg {
    color: var(--accent-orange);
}

.marquee-item.solution svg {
    color: var(--accent);
}

/* Stats Section */
.stats-section {
    padding: var(--space-20) 0;
    background: var(--bg-dark);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

@media (max-width: 968px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    text-align: center;
    padding: var(--space-8);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: all var(--transition);
}

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

.stat-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-card);
    border-radius: var(--radius-lg);
}

.stat-icon svg {
    width: 28px;
    height: 28px;
    color: var(--primary);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-white);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: 0.9375rem;
    color: var(--text-muted);
}

/* ========================================
   Sections
   ======================================== */
.section {
    padding: var(--space-24) 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--space-16);
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(124, 92, 255, 0.1);
    border: 1px solid rgba(124, 92, 255, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-6);
}

.section-title {
    margin-bottom: var(--space-6);
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.125rem;
    line-height: 1.7;
}

/* ========================================
   Problems Section
   ======================================== */
.problems {
    background: var(--bg-dark);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

.problem-card {
    background: var(--bg-card);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-orange);
    transform: scaleX(0);
    transition: transform var(--transition);
}

.problem-card:hover {
    border-color: var(--accent-orange);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(255, 107, 53, 0.1);
}

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

.problem-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 107, 53, 0.1);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-6);
}

.problem-icon svg {
    width: 32px;
    height: 32px;
    color: var(--accent-orange);
}

.problem-card h3 {
    margin-bottom: var(--space-4);
    font-size: 1.25rem;
}

.problem-card p {
    color: var(--text-muted);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* ========================================
   Solutions Section
   ======================================== */
.solutions {
    background: var(--bg-surface);
}

.solutions-showcase {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

@media (max-width: 1024px) {
    .solutions-showcase {
        grid-template-columns: 1fr;
    }
}

.solution-visual {
    position: relative;
}

.flow-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
    padding: var(--space-10);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    position: relative;
}

.flow-diagram::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-2xl);
    background: var(--gradient-primary);
    opacity: 0.1;
    z-index: -1;
}

.flow-row {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    width: 100%;
    justify-content: center;
}

.flow-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-5);
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    min-width: 100px;
    transition: all var(--transition);
}

.flow-node:hover {
    border-color: var(--primary);
    transform: scale(1.05);
}

.flow-node.process {
    background: var(--gradient-primary);
    border: none;
    padding: var(--space-6);
}

.flow-node.process span {
    color: var(--text-white);
    font-weight: 600;
}

.node-icon {
    width: 32px;
    height: 32px;
    color: var(--text);
}

.node-icon svg {
    width: 100%;
    height: 100%;
}

.logo-icon-small {
    width: 32px;
    height: 32px;
    color: var(--text-white);
}

.flow-node span {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
}

.flow-line {
    width: 60px;
    height: 2px;
    background: var(--border-color);
    position: relative;
    overflow: hidden;
}

.flow-line.vertical {
    width: 2px;
    height: 40px;
}

.flow-particle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    animation: flowMove 2s infinite;
    box-shadow: 0 0 10px var(--accent);
}

.flow-line.vertical .flow-particle {
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    animation: flowMoveVertical 2s infinite;
}

@keyframes flowMove {
    0% { left: -10px; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { left: 100%; opacity: 0; }
}

@keyframes flowMoveVertical {
    0% { top: -10px; opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

.solution-cards {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.solution-card {
    background: var(--bg-card);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition);
}

.solution-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.solution-header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
}

.chip {
    padding: var(--space-1) var(--space-4);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.chip-automation {
    background: rgba(124, 92, 255, 0.15);
    color: var(--primary-light);
}

.chip-ai {
    background: rgba(0, 229, 160, 0.15);
    color: var(--accent);
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
}

.solution-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.solution-features li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ========================================
   Use Cases Section
   ======================================== */
.use-cases {
    background: var(--bg-dark);
}

.tabs {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.tab-nav {
    display: flex;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-5) var(--space-6);
    background: none;
    border: none;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
}

.tab-btn svg {
    width: 22px;
    height: 22px;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform var(--transition);
}

.tab-btn:hover {
    background: var(--bg-elevated);
    color: var(--text-light);
}

.tab-btn.active {
    color: var(--text-white);
    background: var(--bg-card);
}

.tab-btn.active::after {
    transform: scaleX(1);
}

.tab-content {
    padding: var(--space-10);
}

.tab-pane {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.usecase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
}

.usecase-item {
    padding: var(--space-6);
    background: var(--bg-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition);
}

.usecase-item:hover {
    border-color: var(--accent);
    transform: translateY(-6px);
    box-shadow: 0 15px 30px rgba(0, 229, 160, 0.1);
}

.usecase-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-4);
    color: var(--accent);
}

.usecase-icon svg {
    width: 100%;
    height: 100%;
}

.usecase-item h4 {
    margin-bottom: var(--space-3);
    font-size: 1.125rem;
}

.usecase-item p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .tab-nav {
        flex-direction: column;
    }
    
    .tab-btn {
        justify-content: flex-start;
        padding: var(--space-4) var(--space-6);
    }
    
    .tab-btn::after {
        top: 0;
        bottom: 0;
        left: 0;
        right: auto;
        width: 3px;
        height: auto;
        transform: scaleY(0);
    }
    
    .tab-btn.active::after {
        transform: scaleY(1);
    }
}

/* ========================================
   Process Section
   ======================================== */
.process {
    background: var(--bg-surface);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

@media (max-width: 968px) {
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .process-grid {
        grid-template-columns: 1fr;
    }
}

.process-card {
    background: var(--bg-card);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition);
    position: relative;
}

.process-card:hover {
    border-color: var(--primary);
    transform: translateY(-6px);
}

.process-number {
    position: absolute;
    top: var(--space-6);
    right: var(--space-6);
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    opacity: 0.15;
    line-height: 1;
}

.process-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(124, 92, 255, 0.1);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-5);
}

.process-icon svg {
    width: 28px;
    height: 28px;
    color: var(--primary);
}

.process-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-3);
}

.process-card p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ========================================
   Calculator Section
   ======================================== */
.calculator {
    background: var(--bg-dark);
    position: relative;
}

.calculator::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 40% at 50% 100%, rgba(124, 92, 255, 0.1), transparent);
    pointer-events: none;
}

.calculator-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: var(--space-12);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.calculator-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.calc-inputs {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    margin-bottom: var(--space-10);
}

.input-group {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: var(--space-6);
}

.input-group label {
    font-weight: 500;
    color: var(--text-light);
    grid-column: 1 / -1;
    margin-bottom: var(--space-2);
}

.input-group input[type="range"] {
    width: 100%;
    height: 8px;
    background: var(--bg-surface);
    border-radius: var(--radius-full);
    appearance: none;
    cursor: pointer;
}

.input-group input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 24px;
    height: 24px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: 0 0 15px rgba(124, 92, 255, 0.5);
}

.input-group input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 0 25px rgba(124, 92, 255, 0.7);
}

.input-value {
    min-width: 100px;
    text-align: right;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-white);
}

.calc-results {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
    margin-bottom: var(--space-10);
}

.result-card {
    background: var(--bg-surface);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 1px solid var(--border-color);
}

.result-card.main {
    grid-column: 1 / -1;
    background: var(--gradient-primary);
    border: none;
    padding: var(--space-8);
}

.result-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--space-2);
}

.result-card.main .result-label {
    color: rgba(255, 255, 255, 0.8);
}

.result-value {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-white);
}

.result-card.main .result-value {
    font-size: 3rem;
}

.result-value.highlight {
    color: var(--accent);
}

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

/* ========================================
   Pricing Section
   ======================================== */
.pricing {
    background: var(--bg-surface);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-6);
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: all var(--transition);
    position: relative;
}

.pricing-card:hover {
    border-color: var(--primary);
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.pricing-card.featured::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-2xl);
    background: var(--gradient-primary);
    opacity: 0.15;
    z-index: -1;
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-2) var(--space-5);
    background: var(--gradient-primary);
    color: var(--text-white);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-header {
    margin-bottom: var(--space-6);
}

.pricing-header h3 {
    margin-bottom: var(--space-2);
    font-size: 1.5rem;
}

.pricing-desc {
    font-size: 0.9375rem;
    color: var(--text-muted);
}

.pricing-price {
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--border-color);
}

.price-from {
    font-size: 0.875rem;
    color: var(--text-dark);
}

.price-amount {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--text-white);
    margin: 0 var(--space-1);
}

.price-currency {
    font-size: 0.9375rem;
    color: var(--text-muted);
}

.pricing-features {
    flex: 1;
    margin-bottom: var(--space-8);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    font-size: 0.9375rem;
    color: var(--text-muted);
}

.pricing-features li::before {
    content: '✓';
    color: var(--accent);
    font-weight: 700;
}

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

/* ========================================
   Contact Section
   ======================================== */
.contact {
    background: var(--bg-dark);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 50% 50% at 20% 80%, rgba(124, 92, 255, 0.1), transparent),
        radial-gradient(ellipse 50% 50% at 80% 20%, rgba(0, 229, 160, 0.08), transparent);
    pointer-events: none;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-16);
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: var(--space-12);
    border: 1px solid var(--border-color);
    position: relative;
}

@media (max-width: 1024px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
        padding: var(--space-8);
    }
}

.contact-info {
    padding-right: var(--space-8);
}

.contact-info .section-tag {
    margin-bottom: var(--space-6);
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: var(--space-6);
}

.contact-desc {
    color: var(--text-muted);
    margin-bottom: var(--space-10);
    line-height: 1.7;
}

.contact-benefits {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.benefit {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    font-weight: 500;
    color: var(--text-light);
}

.benefit svg {
    width: 24px;
    height: 24px;
    color: var(--accent);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    background: var(--bg-surface);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
}

.contact-form-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.form-badge {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(0, 229, 160, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
}

.form-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-light);
}

.form-group input,
.form-group textarea {
    padding: var(--space-4) var(--space-5);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    color: var(--text-white);
    transition: all var(--transition);
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(124, 92, 255, 0.15);
}

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

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--bg-surface);
    padding: var(--space-20) 0 var(--space-10);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-16);
    margin-bottom: var(--space-16);
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }
}

.footer-brand .logo {
    margin-bottom: var(--space-5);
}

.footer-brand p {
    color: var(--text-muted);
    max-width: 320px;
    line-height: 1.7;
}

.footer-col h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-light);
    margin-bottom: var(--space-5);
}

.footer-col a {
    display: block;
    padding: var(--space-2) 0;
    color: var(--text-muted);
    transition: color var(--transition);
}

.footer-col a:hover {
    color: var(--text-white);
}

.footer-bottom {
    padding-top: var(--space-10);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ========================================
   Animations
   ======================================== */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="fade-up"] {
    transform: translateY(40px);
}

[data-aos="fade-right"] {
    transform: translateX(-40px);
}

[data-aos="fade-left"] {
    transform: translateX(40px);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

/* ========================================
   Utilities
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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