/* ============================================
   SmartBrand AI - Styles
   Modern dark theme with neon accents
   ============================================ */

:root {
    --bg: #0a0a0f;
    --bg-alt: #11111a;
    --bg-card: #16161f;
    --bg-card-hover: #1c1c28;
    --border: #2a2a3a;
    --text: #ffffff;
    --text-muted: #a0a0b0;
    --text-dim: #6a6a80;
    --primary: #8b5cf6;
    --primary-light: #a78bfa;
    --primary-dark: #7c3aed;
    --accent: #06b6d4;
    --accent-2: #ec4899;
    --success: #10b981;
    --warning: #f59e0b;
    --gradient: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);
    --gradient-2: linear-gradient(135deg, #ec4899 0%, #8b5cf6 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.3);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Cairo', 'Inter', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

[lang="en"] body, .en {
    font-family: 'Inter', sans-serif;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

/* ========== Navbar ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    font-size: 1.5rem;
    filter: drop-shadow(0 0 8px var(--primary));
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a:not(.btn) {
    color: var(--text-muted);
    font-weight: 500;
    transition: color var(--transition);
}

.nav-links a:not(.btn):hover {
    color: var(--text);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 5px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    white-space: nowrap;
    font-family: inherit;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: var(--shadow-md), 0 0 0 0 rgba(139, 92, 246, 0);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(139, 92, 246, 0.5);
}

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

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

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
}

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

.btn-arrow {
    transition: transform var(--transition);
}

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

/* ========== Hero ========== */
.hero {
    position: relative;
    padding: 180px 0 100px;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(139, 92, 246, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(6, 182, 212, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
    z-index: -1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(139, 92, 246, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139, 92, 246, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 999px;
    font-size: 0.875rem;
    color: var(--primary-light);
    margin-bottom: 24px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

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

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 80px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-num {
    font-size: 2.5rem;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ========== Sections ========== */
.section {
    padding: 100px 0;
    position: relative;
}

.section-alt {
    background: var(--bg-alt);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 999px;
    color: var(--primary-light);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
}

/* ========== Features ========== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    display: block;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-muted);
    line-height: 1.7;
}

/* ========== Steps ========== */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

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

.step-num {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient);
    color: white;
    font-size: 1.5rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: var(--shadow-glow);
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.step p {
    color: var(--text-muted);
}

/* ========== Pricing ========== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    position: relative;
    padding: 36px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.pricing-card-popular {
    background: linear-gradient(180deg, rgba(139, 92, 246, 0.1) 0%, var(--bg-card) 100%);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
    transform: scale(1.05);
}

.pricing-card-popular:hover {
    transform: scale(1.05) translateY(-4px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    background: var(--gradient);
    color: white;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
}

.pricing-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin-bottom: 28px;
}

.price-amount {
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.price-period {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
    flex-grow: 1;
}

.pricing-features li {
    padding: 8px 0;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ========== FAQ ========== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    transition: var(--transition);
}

.faq-item[open] {
    border-color: var(--primary);
}

.faq-item summary {
    padding: 20px 24px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1.05rem;
    list-style: none;
    position: relative;
    padding-left: 50px;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::before {
    content: '+';
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    transition: transform var(--transition);
}

.faq-item[open] summary::before {
    transform: translateY(-50%) rotate(45deg);
}

.faq-item p {
    padding: 0 24px 20px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ========== CTA ========== */
.cta-section {
    padding: 100px 0;
    text-align: center;
    background: var(--bg);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.15) 0%, transparent 60%);
}

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

.cta-section h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-section p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 32px;
}

/* ========== Footer ========== */
.footer {
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    padding: 60px 0 24px;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-muted);
    margin-top: 12px;
    max-width: 320px;
}

.footer-links {
    display: contents;
}

.footer-links > div {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links h4 {
    font-size: 0.95rem;
    margin-bottom: 8px;
    color: var(--text);
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: color var(--transition);
}

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

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-dim);
    font-size: 0.875rem;
}

/* ========== App Page (Dashboard) ========== */
.app-body {
    min-height: 100vh;
    background: var(--bg);
}

.app-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 100px 24px 60px;
}

.app-header {
    text-align: center;
    margin-bottom: 48px;
}

.app-header h1 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: 12px;
    font-weight: 800;
}

.app-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.usage-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 32px;
    font-size: 0.95rem;
}

.usage-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.usage-progress {
    width: 120px;
    height: 6px;
    background: var(--border);
    border-radius: 999px;
    overflow: hidden;
}

.usage-progress-fill {
    height: 100%;
    background: var(--gradient);
    transition: width var(--transition);
}

.generator-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 24px;
}

.generator-form {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
    margin-bottom: 16px;
}

.input-field {
    width: 100%;
    padding: 16px 20px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition);
}

.input-field:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.options-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.select-field {
    padding: 12px 16px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition);
}

.select-field:focus {
    outline: none;
    border-color: var(--primary);
}

.results-area {
    min-height: 200px;
    display: grid;
    gap: 16px;
}

.result-item {
    padding: 24px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.result-item:hover {
    border-color: var(--primary);
}

.result-name {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 8px;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.result-tagline {
    color: var(--text-muted);
    margin-bottom: 12px;
    font-style: italic;
}

.result-meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--text-dim);
}

.result-meta span {
    padding: 4px 10px;
    background: var(--bg-card);
    border-radius: 999px;
}

.result-actions {
    display: flex;
    gap: 8px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.btn-mini {
    padding: 6px 14px;
    font-size: 0.85rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-muted);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
}

.btn-mini:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.logo-preview {
    margin-top: 16px;
    padding: 24px;
    background: white;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.loading-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

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

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-dim);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

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

    .menu-toggle {
        display: flex;
    }

    .hero {
        padding: 140px 0 80px;
    }

    .hero-stats {
        gap: 32px;
    }

    .stat-num {
        font-size: 2rem;
    }

    .footer-inner {
        grid-template-columns: 1fr;
    }

    .pricing-card-popular {
        transform: none;
    }

    .pricing-card-popular:hover {
        transform: translateY(-4px);
    }

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

    .steps {
        gap: 32px;
    }
}

/* ========== Toast notifications ========== */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    animation: slideUp 0.3s ease;
    max-width: 320px;
}

.toast.success {
    border-color: var(--success);
}

.toast.error {
    border-color: var(--accent-2);
}

@keyframes slideUp {
    from { transform: translateY(100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* ========== Modal ========== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    animation: fadeIn 0.2s ease;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    max-width: 480px;
    width: 100%;
    position: relative;
    animation: scaleIn 0.3s ease;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes scaleIn { from { transform: scale(0.9); opacity: 0; } to { transform: scale(1); opacity: 1; } }

.modal h3 {
    margin-bottom: 12px;
    font-size: 1.5rem;
}

.modal p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

.modal-close {
    position: absolute;
    top: 16px;
    left: 16px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
}

.payment-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.payment-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    width: 100%;
    font-family: inherit;
    color: var(--text);
    font-size: 1rem;
}

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

.payment-btn .price {
    color: var(--primary-light);
    font-weight: 700;
}