/**
 * PhoneVerifier.io Landing Page Design System
 * ============================================
 *
 * Shared CSS styles for all marketing and lead capture pages.
 * Built with CSS Custom Properties (variables) for consistency
 * and easy theming.
 *
 * @fileoverview Design system and component library for landing pages
 * @version 1.0.0
 * @license Proprietary - PBCMO LLC
 *
 * DESIGN TOKENS:
 * --------------
 * All design values are defined as CSS custom properties in :root.
 * Use these variables throughout your styles for consistency.
 *
 * COLOR PALETTE:
 * - Primary: Cyan (#00d4ff) - CTAs, links, accents
 * - Success: Green (#00ff88) - Positive states, completed steps
 * - Warning: Orange (#ffaa00) - Warnings, caution states
 * - Error: Red (#ff4444) - Errors, destructive actions
 * - Backgrounds: Dark blues/purples (#0d0d1a to #252542)
 * - Text: White to gray (#ffffff to #666666)
 *
 * TYPOGRAPHY:
 * - Font family: System font stack for optimal performance
 * - Font sizes: xs (0.75rem) to 5xl (3rem)
 * - Line height: 1.6 for body, 1.2 for headings
 *
 * SPACING:
 * - Uses 4px base unit (0.25rem)
 * - Sizes: xs (4px) to 3xl (64px)
 *
 * COMPONENTS INCLUDED:
 * - Layout: container, header, footer
 * - Hero section with stats
 * - Feature cards and grids
 * - Step/process cards
 * - Forms and inputs
 * - Multi-step wizard
 * - File upload zone
 * - Progress bars
 * - Buttons (primary, secondary, success, sizes)
 * - FAQ accordion
 * - Testimonials
 * - Trust signals
 * - Alerts and notifications
 * - Success screens
 * - Utility classes
 *
 * RESPONSIVE BREAKPOINTS:
 * - Mobile-first approach
 * - 768px: Tablet and above
 *
 * USAGE:
 * ------
 * Link this stylesheet in your HTML:
 * <link rel="stylesheet" href="/css/landing.css">
 *
 * Then use the component classes in your markup:
 * <button class="btn btn--primary btn--large">Click Me</button>
 */

:root {
    /* Colors */
    --color-primary: #00d4ff;
    --color-primary-dark: #00a8cc;
    --color-primary-light: #4de5ff;
    --color-success: #00ff88;
    --color-success-dark: #00cc6a;
    --color-warning: #ffaa00;
    --color-error: #ff4444;

    --color-bg-dark: #0d0d1a;
    --color-bg-main: #1a1a2e;
    --color-bg-card: #252542;
    --color-bg-input: #1a1a2e;
    --color-bg-hover: #2a2a4e;

    --color-border: #3a3a5e;
    --color-border-light: #4a4a6e;

    --color-text-primary: #ffffff;
    --color-text-secondary: #cccccc;
    --color-text-muted: #888888;
    --color-text-dark: #666666;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 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: 3rem;

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

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Layout */
    --max-width-sm: 500px;
    --max-width-md: 700px;
    --max-width-lg: 900px;
    --max-width-xl: 1100px;
    --max-width-2xl: 1300px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background: var(--color-bg-main);
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

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

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

/* Layout */
.container {
    width: 100%;
    max-width: var(--max-width-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.container--sm { max-width: var(--max-width-sm); }
.container--md { max-width: var(--max-width-md); }
.container--lg { max-width: var(--max-width-lg); }

/* Header / Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 13, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    max-width: var(--max-width-xl);
    margin: 0 auto;
}

.header__logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header__logo svg {
    width: 32px;
    height: 32px;
}

.header__nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

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

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

.header__cta {
    background: var(--color-primary);
    color: var(--color-bg-dark) !important;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.header__cta:hover {
    background: var(--color-primary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

/* Hero Section */
.hero {
    padding: calc(80px + var(--spacing-3xl)) var(--spacing-lg) var(--spacing-3xl);
    text-align: center;
    background: linear-gradient(180deg, var(--color-bg-dark) 0%, var(--color-bg-main) 100%);
}

.hero__badge {
    display: inline-block;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
}

.hero__title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-2xl);
}

.hero__cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-2xl);
}

.hero__stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2xl);
    justify-content: center;
    margin-top: var(--spacing-2xl);
}

.hero__stat {
    text-align: center;
}

.hero__stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

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

.btn--primary:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    color: var(--color-bg-dark);
}

.btn--secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-border);
}

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

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

.btn--success:hover {
    background: var(--color-success-dark);
}

.btn--large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.btn--small {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Cards */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

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

/* Feature Grid */
.features {
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.features__header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    max-width: var(--max-width-xl);
    margin: 0 auto;
}

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

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

.feature-card__icon {
    width: 48px;
    height: 48px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.feature-card__title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.feature-card__desc {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

/* Steps / How It Works */
.steps {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--color-bg-dark);
}

.steps__header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.steps__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    max-width: var(--max-width-xl);
    margin: 0 auto;
}

.step-card {
    text-align: center;
    padding: var(--spacing-xl);
}

.step-card__number {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-bg-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin: 0 auto var(--spacing-md);
}

.step-card__title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.step-card__desc {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* Form Styles */
.form {
    max-width: var(--max-width-sm);
    margin: 0 auto;
}

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

.form__label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.form__label--required::after {
    content: '*';
    color: var(--color-error);
    margin-left: var(--spacing-xs);
}

.form__input,
.form__select,
.form__textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

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

.form__input--error {
    border-color: var(--color-error);
}

.form__error {
    font-size: var(--font-size-sm);
    color: var(--color-error);
    margin-top: var(--spacing-xs);
}

.form__help {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

.form__checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.form__checkbox input {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--color-primary);
}

.form__checkbox label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* File Upload Zone */
.upload-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    background: var(--color-bg-input);
}

.upload-zone:hover,
.upload-zone--active {
    border-color: var(--color-primary);
    background: rgba(0, 212, 255, 0.05);
}

.upload-zone__icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    color: var(--color-primary);
}

.upload-zone__title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.upload-zone__subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.upload-zone__file {
    display: none;
}

.upload-zone__file-info {
    background: var(--color-bg-card);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
}

/* Multi-Step Form Wizard */
.wizard {
    max-width: var(--max-width-md);
    margin: 0 auto;
}

.wizard__progress {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

.wizard__progress::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-border);
    z-index: 0;
}

.wizard__step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
    flex: 1;
}

.wizard__step-number {
    width: 40px;
    height: 40px;
    background: var(--color-bg-card);
    border: 2px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    transition: all var(--transition-base);
}

.wizard__step--active .wizard__step-number {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-bg-dark);
}

.wizard__step--completed .wizard__step-number {
    background: var(--color-success);
    border-color: var(--color-success);
    color: var(--color-bg-dark);
}

.wizard__step-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-align: center;
}

.wizard__step--active .wizard__step-label {
    color: var(--color-primary);
}

.wizard__content {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
}

.wizard__actions {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

/* Progress Bar */
.progress {
    width: 100%;
    height: 8px;
    background: var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress__bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-success) 100%);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

/* Trust Signals */
.trust {
    padding: var(--spacing-2xl) var(--spacing-lg);
    text-align: center;
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.trust__items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2xl);
    justify-content: center;
    align-items: center;
}

.trust__item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.trust__item svg {
    color: var(--color-success);
}

/* Testimonials */
.testimonials {
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.testimonials__header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    max-width: var(--max-width-xl);
    margin: 0 auto;
}

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

.testimonial-card__quote {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

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

.testimonial-card__avatar {
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--color-bg-dark);
}

.testimonial-card__name {
    font-weight: 600;
    color: var(--color-text-primary);
}

.testimonial-card__title {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* CTA Section */
.cta {
    padding: var(--spacing-3xl) var(--spacing-lg);
    text-align: center;
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, #1a2a3e 100%);
}

.cta__title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
}

.cta__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* Footer */
.footer {
    background: var(--color-bg-dark);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.footer__inner {
    max-width: var(--max-width-xl);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-2xl);
}

.footer__brand {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.footer__desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.footer__title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer__links {
    list-style: none;
}

.footer__links li {
    margin-bottom: var(--spacing-sm);
}

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

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

.footer__bottom {
    max-width: var(--max-width-xl);
    margin: var(--spacing-xl) auto 0;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.footer__copyright {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.footer__legal {
    display: flex;
    gap: var(--spacing-lg);
}

.footer__legal a {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* FAQ Section */
.faq {
    padding: var(--spacing-3xl) var(--spacing-lg);
}

.faq__header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.faq__list {
    max-width: var(--max-width-lg);
    margin: 0 auto;
}

.faq__item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
}

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

.faq__question:hover {
    background: var(--color-bg-hover);
}

.faq__question svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
    transition: transform var(--transition-base);
}

.faq__item--open .faq__question svg {
    transform: rotate(180deg);
}

.faq__answer {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    display: none;
}

.faq__item--open .faq__answer {
    display: block;
}

/* Alerts / Notifications */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.alert--success {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

.alert--error {
    background: rgba(255, 68, 68, 0.1);
    border: 1px solid var(--color-error);
    color: var(--color-error);
}

.alert--warning {
    background: rgba(255, 170, 0, 0.1);
    border: 1px solid var(--color-warning);
    color: var(--color-warning);
}

.alert--info {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
}

/* Success Screen */
.success-screen {
    text-align: center;
    padding: var(--spacing-2xl);
}

.success-screen__icon {
    width: 80px;
    height: 80px;
    background: rgba(0, 255, 136, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-xl);
}

.success-screen__icon svg {
    width: 40px;
    height: 40px;
    color: var(--color-success);
}

.success-screen__title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
}

.success-screen__message {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }
.text-muted { color: var(--color-text-muted); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.hidden { display: none !important; }
.visible { display: block !important; }

/* Responsive */
@media (max-width: 768px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.5rem;
    }

    .header__nav {
        display: none;
    }

    .hero {
        padding-top: calc(60px + var(--spacing-2xl));
    }

    .hero__cta-group {
        flex-direction: column;
        align-items: center;
    }

    .hero__stats {
        gap: var(--spacing-xl);
    }

    .wizard__progress {
        overflow-x: auto;
        padding-bottom: var(--spacing-sm);
    }

    .wizard__step-label {
        font-size: var(--font-size-xs);
    }

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

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

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.animate-fadeIn { animation: fadeIn 0.5s ease; }
.animate-slideUp { animation: slideUp 0.5s ease; }
.animate-pulse { animation: pulse 2s ease infinite; }

/* Loading States */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(26, 26, 46, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}