/* ========================================
   Echo Text AI Website Styles
   Color Scheme from WPF Application
   ======================================== */

/* CSS Variables - Matching App Colors */
:root {
    /* Primary Colors */
    --color-orange: #FFA500;
    --color-orange-hover: #FF8C00;
    --color-orange-light: #FEF3E8;
    --color-orange-active: #F97316;

    /* Accent Colors */
    --color-blue: #3B82F6;
    --color-blue-light: #DBEAFE;
    --color-green: #10B981;
    --color-green-light: #ECFDF5;
    --color-red: #EF4444;

    /* Grayscale */
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-700: #374151;
    --color-gray-900: #1F2937;

    /* Background */
    --color-bg: #F5F5F5;
    --color-white: #FFFFFF;

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

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 14px;
    --radius-xl: 16px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Font */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ========================================
   Global Styles
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family);
    color: var(--color-gray-900);
    background-color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.gradient-text {
    background: linear-gradient(135deg, var(--color-orange) 0%, var(--color-orange-active) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Navigation
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--color-gray-900);
}

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

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

.nav-link {
    color: var(--color-gray-500);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--color-orange);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9375rem;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--color-orange);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-orange-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--color-gray-100);
    color: var(--color-gray-700);
}

.btn-secondary:hover {
    background: var(--color-gray-200);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-nav {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

.btn-icon {
    width: 20px;
    height: 20px;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    padding: 8rem 0 6rem;
    background: linear-gradient(135deg, #FFFFFF 0%, var(--color-gray-50) 100%);
    overflow: hidden;
}

.hero-content {
    max-width: 600px;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--color-orange-light);
    color: var(--color-orange);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.badge-icon {
    width: 16px;
    height: 16px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

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

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

.stat {
    text-align: left;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-orange);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    margin-top: 0.25rem;
}

/* Hero Visual */
.hero-visual {
    position: absolute;
    top: 50%;
    right: 5%;
    transform: translateY(-50%);
    width: 500px;
    z-index: 1;
}

.app-preview {
    position: relative;
}

.app-window {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
}

.window-header {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--color-gray-100);
    border-bottom: 1px solid var(--color-gray-200);
}

.window-controls {
    display: flex;
    gap: 0.5rem;
}

.control-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-gray-300);
}

.window-title {
    margin-left: 1rem;
    font-size: 0.875rem;
    color: var(--color-gray-500);
    font-weight: 500;
}

.window-content {
    padding: 1.5rem;
}

.floating-mic {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 1rem;
}

.mic-status {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.status-text {
    font-size: 0.75rem;
    color: var(--color-gray-500);
    font-weight: 500;
}

.settings-icon {
    width: 20px;
    height: 20px;
    color: var(--color-gray-500);
}

.ai-toggles {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.toggle-btn {
    width: 28px;
    height: 28px;
    background: var(--color-gray-100);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
}

.toggle-btn svg {
    width: 14px;
    height: 14px;
    color: var(--color-gray-500);
}

.toggle-btn.toggle-active {
    background: var(--color-orange-light);
}

.toggle-btn.toggle-active svg {
    color: var(--color-orange);
}

.active-dot {
    position: absolute;
    top: 3px;
    right: 3px;
    width: 6px;
    height: 6px;
    background: var(--color-orange);
    border-radius: 50%;
}

.start-btn {
    width: 100%;
    background: var(--color-orange);
    color: var(--color-white);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    border: none;
    font-weight: 600;
    font-size: 0.75rem;
    cursor: pointer;
    margin-bottom: 0.75rem;
    transition: all 0.3s ease;
}

.start-btn:hover {
    background: var(--color-orange-hover);
}

.audio-visualizer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2px;
    height: 40px;
}

.bar {
    width: 4px;
    background: var(--color-gray-200);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Floating Cards */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.float-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-700);
    animation: float 3s ease-in-out infinite;
}

.float-card svg {
    width: 20px;
    height: 20px;
    color: var(--color-orange);
}

.float-1 {
    top: -20px;
    left: -80px;
    animation-delay: 0s;
}

.float-2 {
    top: 50%;
    right: -100px;
    animation-delay: 1s;
}

.float-3 {
    bottom: -20px;
    left: -60px;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.hero-gradient {
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255, 165, 0, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

/* ========================================
   Features Section
   ======================================== */
.features {
    padding: 6rem 0;
    background: var(--color-white);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: 1.125rem;
    color: var(--color-gray-500);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

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

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-white);
}

.feature-icon.orange {
    background: var(--color-orange);
}

.feature-icon.green {
    background: var(--color-green);
}

.feature-icon.blue {
    background: var(--color-blue);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--color-gray-500);
    line-height: 1.7;
}

/* ========================================
   How It Works Section
   ======================================== */
.how-it-works {
    padding: 6rem 0;
    background: var(--color-gray-50);
}

.pipeline {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: 0 auto;
}

.pipeline-step {
    flex: 1;
    min-width: 200px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--color-orange);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.step-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.step-description {
    color: var(--color-gray-500);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.pipeline-arrow {
    flex: 0 0 auto;
}

.pipeline-arrow svg {
    width: 32px;
    height: 32px;
    color: var(--color-orange);
}

/* ========================================
   Pricing Section
   ======================================== */
.pricing {
    padding: 6rem 0;
    background: var(--color-white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.pricing-card {
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all 0.3s ease;
    position: relative;
}

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

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

.featured-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-orange);
    color: var(--color-white);
    padding: 0.25rem 1rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.pricing-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.5rem;
}

.price-amount {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-orange);
}

.price-period {
    font-size: 1rem;
    color: var(--color-gray-500);
}

.pricing-features {
    margin-bottom: var(--spacing-lg);
}

.pricing-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-gray-100);
}

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

.feature-check {
    width: 20px;
    height: 20px;
    color: var(--color-green);
    flex-shrink: 0;
}

.pricing-btn {
    width: 100%;
    padding: 1rem;
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    border-radius: var(--radius-sm);
    text-align: center;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: block;
}

.pricing-btn:hover {
    background: var(--color-gray-200);
}

.featured-btn {
    background: var(--color-orange);
    color: var(--color-white);
}

.featured-btn:hover {
    background: var(--color-orange-hover);
}

.pricing-note {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--color-blue-light);
    border-radius: var(--radius-md);
    max-width: 800px;
    margin: 0 auto;
}

.pricing-note svg {
    width: 24px;
    height: 24px;
    color: var(--color-blue);
    flex-shrink: 0;
}

.pricing-note p {
    color: var(--color-gray-700);
    line-height: 1.6;
}

/* ========================================
   Download Section
   ======================================== */
.download {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--color-orange) 0%, var(--color-orange-active) 100%);
    color: var(--color-white);
}

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

.download-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.download-description {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.download-buttons .btn-primary {
    background: var(--color-white);
    color: var(--color-orange);
}

.download-buttons .btn-primary:hover {
    background: var(--color-gray-100);
}

.download-buttons .btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.download-buttons .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
}

.download-info {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: center;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
}

.info-item svg {
    width: 20px;
    height: 20px;
    opacity: 0.8;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-400);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-title {
    color: var(--color-white);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-description {
    line-height: 1.6;
    font-size: 0.9375rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--color-gray-400);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-700);
    font-size: 0.875rem;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .hero-visual {
        display: none;
    }

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

    .hero {
        padding: 6rem 0 4rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-description {
        font-size: 1.125rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-stats {
        gap: var(--spacing-md);
    }

    .section-title {
        font-size: 2rem;
    }

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

    .pipeline {
        flex-direction: column;
    }

    .pipeline-arrow {
        transform: rotate(90deg);
    }

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

    .download-title {
        font-size: 2rem;
    }

    .download-info {
        flex-direction: column;
        align-items: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

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

    .hero-description {
        font-size: 1rem;
    }

    .btn-large {
        padding: 0.875rem 1.5rem;
        font-size: 0.9375rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .section-description {
        font-size: 1rem;
    }
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.fade-in {
    animation: fadeIn 0.8s ease-out;
}

/* Smooth scroll offset for fixed nav */
section {
    scroll-margin-top: 80px;
}

/* ========================================
   Contact Form Styles
   ======================================== */
.contact-form {
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-gray-200);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: 0.5rem;
    font-size: 0.9375rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: var(--font-family);
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-orange);
    box-shadow: 0 0 0 3px rgba(255, 165, 0, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 1.5rem;
    }
}