/* ============================================
   SERP AI India - Professional Enhanced Design
   Modern glassmorphism with Indian theme
   ============================================ */

:root {
    /* Indian Flag Colors */
    --saffron: #FF9933;
    --white: #FFFFFF;
    --green: #138808;
    --navy-blue: #000080;

    /* Primary Palette - Enhanced */
    --primary: #FF6B35;
    --primary-light: #FF8C61;
    --primary-dark: #E85A2B;
    --secondary: #004E89;
    --accent: #FFA500;
    --accent-light: #FFB733;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #FF6B35 0%, #F7931E 50%, #FDC830 100%);
    --gradient-success: linear-gradient(135deg, #28A745 0%, #20C997 100%);
    --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    --gradient-header: linear-gradient(135deg, #667eea 0%, #764ba2 100%);

    /* Neutrals */
    --text-dark: #1a1a1a;
    --text-gray: #666666;
    --text-light: #999999;
    --bg-light: #F8F9FA;
    --bg-white: #FFFFFF;
    --border-color: #E0E0E0;

    /* Status Colors */
    --success: #28A745;
    --error: #DC3545;
    --warning: #FFC107;
    --info: #17A2B8;

    /* Shadows - Enhanced */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
    --shadow-xl: 0 12px 48px rgba(0,0,0,0.2);
    --shadow-glow: 0 0 20px rgba(255,107,53,0.3);

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;

    /* Border Radius */
    --radius-sm: 6px;
    --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;
}

/* ============================================
   BASE STYLES - Enhanced
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Noto Sans Devanagari', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--gradient-primary);
    background-attachment: fixed;
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Animated background pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

[data-lang="hi"] {
    font-family: 'Noto Sans Devanagari', 'Inter', sans-serif;
}

/* ============================================
   AUTH LOADING - Enhanced
   ============================================ */

.auth-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--gradient-primary);
    color: white;
    position: relative;
}

.spinner-large {
    width: 70px;
    height: 70px;
    border: 5px solid rgba(255,255,255,0.2);
    border-top: 5px solid white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 0 20px rgba(255,255,255,0.3);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ============================================
   HEADER - Glassmorphism Effect
   ============================================ */

.app-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid transparent;
    border-image: linear-gradient(90deg, var(--primary), var(--accent)) 1;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.logo-section {
    flex: 1;
}

.logo {
    font-size: 26px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    transition: transform var(--transition-base);
}

.logo:hover {
    transform: scale(1.02);
}

.logo-icon {
    font-size: 32px;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.tagline {
    font-size: 13px;
    color: var(--text-gray);
    font-weight: 500;
    opacity: 0.9;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

/* Language Switcher - Enhanced */
.language-switcher {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-light);
    padding: 4px;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-xs);
}

.lang-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: transparent;
    color: var(--text-gray);
    font-weight: 600;
    font-size: 14px;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
}

.lang-btn.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-sm);
    transform: scale(1.05);
}

.lang-btn:hover:not(.active) {
    background: rgba(255,107,53,0.1);
    transform: translateY(-1px);
}

/* Credits Display - Enhanced */
.credits-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--gradient-success);
    padding: 10px var(--spacing-md);
    border-radius: var(--radius-lg);
    color: white;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.credits-display::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 70%);
    animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

.credits-display:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.credits-icon {
    font-size: 24px;
    animation: float 3s ease-in-out infinite;
    z-index: 1;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.credits-info {
    display: flex;
    flex-direction: column;
    z-index: 1;
}

.credits-label {
    font-size: 11px;
    opacity: 0.95;
    font-weight: 500;
}

.credits-amount {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 0.5px;
}

.buy-credits-btn {
    background: white;
    color: var(--success);
    border: none;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 13px;
    cursor: pointer;
    transition: all var(--transition-base);
    z-index: 1;
    box-shadow: var(--shadow-sm);
}

.buy-credits-btn:hover {
    transform: scale(1.08);
    box-shadow: var(--shadow-md);
}

/* User Menu - Enhanced */
.user-menu {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--gradient-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.user-btn:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.user-avatar {
    font-size: 22px;
}

.user-name {
    font-weight: 700;
    color: var(--text-dark);
    font-size: 14px;
}

.user-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    min-width: 200px;
    overflow: hidden;
    animation: slideDown 0.3s ease;
}

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

.user-dropdown a {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-dark);
    text-decoration: none;
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-fast);
    font-weight: 500;
}

.user-dropdown a:hover {
    background: var(--gradient-primary);
    color: white;
    padding-left: calc(var(--spacing-lg) + 8px);
}

.user-dropdown a:last-child {
    border-bottom: none;
}

.user-menu:hover .user-dropdown {
    display: block;
}

/* ============================================
   MAIN CONTENT - Enhanced
   ============================================ */

.main-content {
    padding: var(--spacing-xl) var(--spacing-lg);
    min-height: calc(100vh - 200px);
    position: relative;
    z-index: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Welcome Banner - Enhanced Glassmorphism */
.welcome-banner {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease;
}

.welcome-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
}

.welcome-banner h2 {
    font-size: 32px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.welcome-banner p {
    font-size: 17px;
    color: var(--text-gray);
    font-weight: 500;
    max-width: 700px;
    margin: 0 auto;
}

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

/* Step Section - Professional Cards */
.step-section {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.5);
    animation: fadeInUp 0.6s ease;
    animation-delay: 0.1s;
    animation-fill-mode: both;
    position: relative;
}

.step-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl) 0 0 var(--radius-xl);
}

.step-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
}

.step-number {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 800;
    flex-shrink: 0;
    box-shadow: var(--shadow-glow);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); box-shadow: var(--shadow-glow); }
    50% { transform: scale(1.05); box-shadow: 0 0 30px rgba(255,107,53,0.5); }
}

.step-info h3 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
}

.step-info p {
    font-size: 15px;
    color: var(--text-gray);
    font-weight: 500;
}

/* Form Elements - Premium Design */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    display: block;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    font-size: 14px;
    letter-spacing: 0.3px;
}

.input-field {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-family: inherit;
    transition: all var(--transition-base);
    background: white;
    font-weight: 500;
}

.input-field:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(255,107,53,0.1);
    transform: translateY(-1px);
}

.input-field:hover {
    border-color: var(--primary-light);
}

.field-hint {
    display: block;
    font-size: 13px;
    color: var(--text-light);
    margin-top: var(--spacing-sm);
    font-style: italic;
}

/* Indian Templates - Enhanced */
.indian-templates {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, rgba(255,248,231,0.8) 0%, rgba(255,229,204,0.8) 100%);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--accent);
}

.template-label {
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.template-label::before {
    content: '✨';
    font-size: 20px;
}

.template-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.chip {
    padding: 12px 20px;
    background: white;
    border: 2px solid var(--primary);
    border-radius: var(--radius-full);
    color: var(--primary);
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.chip:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.chip:active {
    transform: translateY(-2px);
}

/* Options Group - Enhanced */
.options-group {
    margin: var(--spacing-xl) 0;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--gradient-card);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid transparent;
    box-shadow: var(--shadow-sm);
}

.checkbox-label:hover {
    border-color: var(--primary);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.checkbox-label input[type="checkbox"] {
    width: 22px;
    height: 22px;
    cursor: pointer;
    accent-color: var(--primary);
}

.checkbox-text {
    flex: 1;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 15px;
}

/* Credit Cost Info - Enhanced */
.credit-cost-info {
    background: linear-gradient(135deg, rgba(232,245,233,0.9) 0%, rgba(200,230,201,0.9) 100%);
    backdrop-filter: blur(10px);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
    margin: var(--spacing-xl) 0;
    font-weight: 700;
    color: var(--green);
    font-size: 16px;
    border: 2px solid rgba(19,136,8,0.3);
    box-shadow: var(--shadow-sm);
}

/* Buttons - Premium Design */
.btn {
    padding: 16px 32px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-family: inherit;
    letter-spacing: 0.3px;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-large {
    width: 100%;
    padding: 20px 36px;
    font-size: 18px;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-success {
    background: var(--gradient-success);
    color: white;
}

.btn-success:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: var(--gradient-primary);
    color: white;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn:active {
    transform: translateY(-1px);
}

/* Loading State - Enhanced */
.loading-state {
    text-align: center;
    padding: var(--spacing-2xl);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin: var(--spacing-xl) 0;
    animation: fadeInUp 0.6s ease;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 5px solid var(--bg-light);
    border-top: 5px solid var(--primary);
    border-radius: 50%;
    margin: 0 auto var(--spacing-lg);
    animation: spin 0.8s linear infinite;
    box-shadow: 0 0 20px rgba(255,107,53,0.2);
}

.loading-tips {
    margin-top: var(--spacing-xl);
}

.loading-tip {
    font-size: 15px;
    color: var(--text-gray);
    font-style: italic;
    font-weight: 500;
}

/* Error Message - Enhanced */
.error-message {
    background: linear-gradient(135deg, #FFEBEE 0%, #FFCDD2 100%);
    color: #C62828;
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
    border-left: 5px solid var(--error);
    box-shadow: var(--shadow-md);
    font-weight: 600;
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

/* Results Section - Enhanced */
.results-section {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.5);
    animation: fadeInUp 0.6s ease;
}

.results-header {
    background: linear-gradient(135deg, rgba(232,245,233,0.9) 0%, rgba(200,230,201,0.9) 100%);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    border: 2px solid rgba(40,167,69,0.2);
}

.results-header.success {
    background: linear-gradient(135deg, rgba(232,245,233,0.9) 0%, rgba(200,230,201,0.9) 100%);
}

.results-header h3 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    font-weight: 800;
}

.results-header p {
    font-size: 15px;
    color: var(--text-gray);
    font-weight: 500;
}

/* Article Stats - Enhanced */
.article-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.stat-box {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
}

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

.stat-value {
    display: block;
    font-size: 32px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    display: block;
    font-size: 13px;
    color: var(--text-gray);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Action Buttons - Enhanced */
.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

/* ============================================
   FOOTER - Enhanced
   ============================================ */

.app-footer {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: white;
    padding: var(--spacing-xl) var(--spacing-lg);
    margin-top: var(--spacing-2xl);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer-links a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition-base);
    position: relative;
}

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

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

.footer-info p {
    font-size: 14px;
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.footer-info a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

/* ============================================
   WHATSAPP FLOAT - Enhanced
   ============================================ */

.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #25D366 0%, #20B858 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    z-index: 999;
    transition: all var(--transition-base);
    animation: bounce 2s ease-in-out infinite;
}

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

.whatsapp-float:hover {
    transform: scale(1.15) translateY(-5px);
    box-shadow: 0 12px 40px rgba(37, 211, 102, 0.6);
    animation: none;
}

/* ============================================
   RESPONSIVE DESIGN - Mobile First
   ============================================ */

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-md);
    }

    .header-actions {
        width: 100%;
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-md);
    }

    .credits-display {
        order: -1;
        width: 100%;
        justify-content: space-between;
    }

    .welcome-banner {
        padding: var(--spacing-xl);
    }

    .welcome-banner h2 {
        font-size: 24px;
    }

    .welcome-banner p {
        font-size: 15px;
    }

    .step-section {
        padding: var(--spacing-lg);
    }

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

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

    .template-chips {
        flex-direction: column;
    }

    .chip {
        width: 100%;
        text-align: center;
    }

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

    .btn {
        width: 100%;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 56px;
        height: 56px;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */

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

.step-section,
.results-section {
    animation: fadeInUp 0.6s ease;
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .app-header,
    .whatsapp-float,
    .app-footer,
    .action-buttons,
    .buy-credits-btn {
        display: none !important;
    }

    body {
        background: white;
    }

    .article-preview {
        max-height: none;
        overflow: visible;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}