/* =============================================
   EDUTRICK AI Assistant — page styles
   Uses design tokens from public/css/app.css
   Prefix: .ai-*
   ============================================= */

/* ============= COMMON ELEMENTS ============= */
.ai-kicker {
    display: inline-block;
    color: var(--accent-primary);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    margin: 0 0 var(--space-md);
}

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

/* ============= BUTTONS ============= */
.ai-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-base);
    min-height: 48px;
}

.ai-btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 8px 24px rgba(255, 75, 34, 0.3);
}

.ai-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 36px rgba(255, 75, 34, 0.45);
}

.ai-btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.ai-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.ai-btn-whatsapp {
    background: #25D366;
    color: white;
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.3);
}

.ai-btn-whatsapp:hover {
    background: #1ebd5d;
    transform: translateY(-2px);
}

.ai-btn-large {
    padding: 16px 32px;
    font-size: 1.05rem;
    min-height: 56px;
}

/* ============= HERO ============= */
.ai-hero {
    position: relative;
    overflow: hidden;
    background: var(--bg-primary);
    padding: clamp(3rem, 8vw, 6rem) 0;
    min-height: calc(100vh - 4.5rem);
    display: flex;
    align-items: center;
}

.ai-hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.ai-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    opacity: 0.3;
}

.ai-orb-1 {
    width: 500px;
    height: 500px;
    top: -150px;
    right: -100px;
    background: var(--accent-primary);
}

.ai-orb-2 {
    width: 450px;
    height: 450px;
    bottom: -100px;
    left: -80px;
    background: #25D366;
    opacity: 0.18;
}

.ai-hero-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

@media (min-width: 1024px) {
    .ai-hero-grid {
        grid-template-columns: 1fr 420px;
    }
}

.ai-hero-title {
    font-family: var(--font-display);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.025em;
    color: var(--text-primary);
    margin: var(--space-md) 0 var(--space-lg);
    font-size: clamp(2.25rem, 5.5vw, 4rem);
}

.ai-hero-title .ai-accent {
    display: block;
}

.ai-hero-subtitle {
    font-size: clamp(1.05rem, 1.4vw, 1.25rem);
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0 0 var(--space-2xl);
    max-width: 540px;
}

.ai-hero-subtitle strong {
    color: var(--accent-primary);
    font-weight: 800;
}

.ai-hero-ctas {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-bottom: var(--space-2xl);
}

.ai-hero-stats {
    display: inline-flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-md) var(--space-xl);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.ai-stat-num {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1;
}

.ai-stat-accent {
    color: var(--accent-primary);
}

.ai-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
    font-weight: 600;
}

.ai-hero-stats-divider {
    width: 1px;
    height: 32px;
    background: var(--border-primary);
}

/* ============= PHONE MOCKUP ============= */
.ai-hero-mockup {
    position: relative;
    max-width: 380px;
    margin: 0 auto;
}

.ai-mockup-badge {
    position: absolute;
    top: 32px;
    left: -20px;
    z-index: 3;
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: none;
}

@media (min-width: 640px) {
    .ai-mockup-badge { display: block; }
}

.ai-mockup-badge-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    font-weight: 700;
    margin: 0;
}

.ai-mockup-badge-num {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--accent-primary);
    font-weight: 900;
    margin: 4px 0 0;
}

.ai-phone {
    background: #0a0a0a;
    border: 10px solid #1a1a1a;
    border-radius: 2rem;
    padding: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

.ai-phone-screen {
    background: #eef7f2;
    border-radius: 1.4rem;
    overflow: hidden;
}

.ai-phone-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #0a1a2f;
    padding: 12px 16px;
    color: white;
}

.ai-phone-header-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.ai-phone-avatar {
    width: 36px;
    height: 36px;
    background: var(--accent-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 900;
    font-size: 1rem;
}

.ai-phone-name {
    margin: 0;
    font-weight: 800;
    font-size: 0.85rem;
}

.ai-phone-status {
    margin: 2px 0 0;
    font-size: 0.7rem;
    color: #d4d4d8;
}

.ai-phone-online {
    background: #25D366;
    color: white;
    font-size: 0.6rem;
    font-weight: 900;
    padding: 4px 8px;
    border-radius: var(--radius-full);
    text-transform: lowercase;
}

.ai-phone-messages {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: 280px;
}

.ai-bubble {
    max-width: 85%;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1.4;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.ai-bubble-them {
    background: white;
    color: #0a1a2f;
    margin-right: auto;
    border-bottom-left-radius: 4px;
}

.ai-bubble-me {
    background: #d9fdd3;
    color: #0a1a2f;
    margin-left: auto;
    border-bottom-right-radius: 4px;
}

.ai-bubble-typing {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    width: auto;
    padding: 12px;
}

.ai-bubble-typing span {
    width: 6px;
    height: 6px;
    background: #0a1a2f;
    border-radius: 50%;
    animation: aiTypingDot 1.4s ease-in-out infinite;
}

.ai-bubble-typing span:nth-child(2) { animation-delay: 0.2s; }
.ai-bubble-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes aiTypingDot {
    0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
    30%           { opacity: 1;   transform: translateY(-4px); }
}

/* ============= TRUST BAR ============= */
.ai-trust {
    padding: var(--space-lg) 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
    border-bottom: 1px solid var(--border-primary);
}

.ai-trust-row {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    align-items: center;
    justify-content: space-between;
}

@media (min-width: 768px) {
    .ai-trust-row { flex-direction: row; }
}

.ai-trust-title {
    font-weight: 800;
    color: var(--text-secondary);
    margin: 0;
}

.ai-trust-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.ai-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 8px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 700;
}

.ai-chip-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 0.9rem;
}

.ai-chip-orange { background: rgba(255, 75, 34, 0.18); color: var(--accent-primary); }
.ai-chip-blue   { background: rgba(99, 102, 241, 0.18); color: #818cf8; }
.ai-chip-green  { background: rgba(34, 197, 94, 0.18); color: #4ade80; }

/* ============= SECTIONS ============= */
.ai-section {
    padding: clamp(3rem, 7vw, 6rem) 0;
    background: var(--bg-primary);
}

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

.ai-section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-2xl);
}

.ai-section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin: 0;
}

.ai-section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: var(--space-md) 0 0;
}

/* ============= GRIDS ============= */
.ai-grid {
    display: grid;
    gap: var(--space-lg);
}

.ai-grid-3 {
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .ai-grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.ai-grid-demo {
    grid-template-columns: 1fr;
    align-items: center;
    gap: var(--space-2xl);
}

@media (min-width: 1024px) {
    .ai-grid-demo { grid-template-columns: 0.9fr 1.1fr; }
}

/* ============= CARDS ============= */
.ai-card {
    padding: var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.ai-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 75, 34, 0.3);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}

.ai-card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
}

.ai-card-icon-warm {
    background: linear-gradient(135deg, rgba(255, 75, 34, 0.18), rgba(255, 138, 107, 0.08));
    color: var(--accent-primary);
}

.ai-card-icon-cool {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.18), rgba(99, 102, 241, 0.05));
    color: #818cf8;
}

.ai-card-text {
    font-size: 1.05rem;
    font-weight: 800;
    line-height: 1.6;
    color: var(--text-primary);
    margin: 0;
}

.ai-card-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: var(--space-md) 0 6px;
}

.ai-card-note {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.95rem;
    margin: 0;
}

.ai-step-card {
    position: relative;
    overflow: hidden;
}

.ai-step-bg-num {
    position: absolute;
    top: -16px;
    left: -8px;
    font-family: var(--font-display);
    font-size: 6rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.03);
    line-height: 1;
}

.ai-step-num {
    position: relative;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 900;
    color: var(--accent-primary);
}

/* ============= DEMO ============= */
.ai-demo {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.ai-demo-header {
    padding: var(--space-md) var(--space-lg);
    background: #0a1a2f;
    color: white;
}

.ai-demo-title {
    font-weight: 900;
    margin: 0;
    font-size: 1rem;
}

.ai-demo-subtitle {
    font-size: 0.75rem;
    color: #d4d4d8;
    margin: 2px 0 0;
}

.ai-demo-messages {
    min-height: 280px;
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: #eef7f2;
}

.ai-demo-limit {
    padding: var(--space-lg);
    text-align: center;
    background: white;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    color: #0a1a2f;
}

.ai-demo-limit p {
    font-weight: 800;
    margin: 0 0 var(--space-md);
}

.ai-demo-form {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: white;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.ai-demo-form input {
    flex: 1;
    padding: 12px 16px;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: var(--radius-md);
    color: #0a1a2f;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 700;
    min-height: 48px;
}

.ai-demo-form input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* ============= TABS ============= */
.ai-tabs {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 6px;
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    max-width: 700px;
    margin: 0 auto;
}

@media (min-width: 640px) {
    .ai-tabs { flex-direction: row; }
}

.ai-tab {
    flex: 1;
    padding: 12px 20px;
    background: transparent;
    color: var(--text-secondary);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 800;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 44px;
}

.ai-tab:hover {
    color: var(--text-primary);
}

.ai-tab-active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 16px rgba(255, 75, 34, 0.25);
}

.ai-tab-content {
    margin-top: var(--space-xl);
    padding: var(--space-2xl);
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    max-width: 800px;
    margin-inline: auto;
    margin-top: var(--space-xl);
}

.ai-tab-content p {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.7;
    margin: 0;
    text-align: center;
}

[x-cloak] { display: none !important; }

/* ============= PRICING ============= */
.ai-pricing-card {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--space-2xl);
    background: var(--bg-card);
    border: 1px solid rgba(255, 75, 34, 0.25);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: 0 0 40px rgba(255, 75, 34, 0.1);
}

.ai-pricing-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 900;
    color: var(--text-primary);
    margin: 0 0 var(--space-sm);
}

.ai-pricing-text {
    color: var(--text-secondary);
    font-weight: 600;
    line-height: 1.7;
    margin: 0 0 var(--space-xl);
}

/* ============= FAQ ============= */
.ai-faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.ai-faq {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.ai-faq:hover {
    border-color: rgba(255, 75, 34, 0.25);
}

.ai-faq-q {
    width: 100%;
    padding: 18px 24px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: inherit;
    font-weight: 800;
    font-size: 1rem;
    text-align: right;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
    cursor: pointer;
    min-height: 56px;
}

.ai-faq-toggle {
    color: var(--accent-primary);
    font-size: 1.5rem;
    font-weight: 900;
    transition: transform var(--transition-fast);
}

.ai-faq-a {
    padding: 0 24px 20px;
    color: var(--text-secondary);
}

.ai-faq-a p {
    font-weight: 600;
    line-height: 1.8;
    margin: 0;
}

/* ============= FINAL CTA ============= */
.ai-cta-section {
    position: relative;
    overflow: hidden;
    padding: clamp(3rem, 8vw, 6rem) 0;
    background: var(--bg-primary);
}

.ai-cta-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.ai-cta-glow {
    position: absolute;
    width: 700px;
    height: 700px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, var(--accent-primary), transparent 70%);
    opacity: 0.18;
    filter: blur(80px);
}

.ai-cta-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 900;
    color: var(--text-primary);
    margin: 0 0 var(--space-md);
    line-height: 1.15;
}

.ai-cta-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0 auto var(--space-2xl);
    max-width: 600px;
    font-weight: 600;
}

/* ============= LEGAL PAGES (Privacy / Terms) ============= */
.legal-page {
    padding: clamp(3rem, 8vw, 5rem) 0;
    background: var(--bg-primary);
    min-height: calc(100vh - 200px);
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-2xl);
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    color: var(--text-secondary);
}

.legal-content h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 900;
    color: var(--text-primary);
    margin: 0 0 var(--space-md);
}

.legal-content h2 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: var(--space-2xl) 0 var(--space-md);
}

.legal-content p,
.legal-content li {
    font-size: 1rem;
    line-height: 1.9;
    font-weight: 500;
}

.legal-content ul {
    padding-inline-start: var(--space-xl);
    margin: var(--space-md) 0;
}

.legal-content li {
    margin-bottom: var(--space-sm);
}

.legal-content a {
    color: var(--accent-primary);
    font-weight: 700;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.legal-content a:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

.legal-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 600;
    margin: 0 0 var(--space-2xl);
}