/* ============================================
   ViralTools - Main Stylesheet
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ---- CSS Variables ---- */
:root {
    --primary: #6C5CE7;
    --primary-dark: #5A4BD1;
    --primary-light: #A29BFE;
    --secondary: #00CEC9;
    --accent: #FF6B6B;
    --dark: #0F0F14;
    --dark-2: #1A1A24;
    --dark-3: #252533;
    --gray-100: #F7F7FB;
    --gray-200: #EDEDF3;
    --gray-300: #D1D1DB;
    --gray-400: #9696A6;
    --gray-500: #6B6B7B;
    --gray-600: #4A4A5A;
    --white: #FFFFFF;
    --success: #00B894;
    --warning: #FDCB6E;
    --danger: #FF6B6B;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 16px 60px rgba(0,0,0,0.16);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

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

a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; }
button { cursor: pointer; font-family: inherit; border: none; }
input, select, textarea { font-family: inherit; }

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); font-weight: 700; line-height: 1.2; }
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.6rem); }

/* ---- Navigation ---- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    padding: 0 24px;
    transition: var(--transition);
}

.navbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.navbar-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-logo svg { width: 32px; height: 32px; }

.navbar-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.navbar-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-600);
    position: relative;
}

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

.navbar-auth {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius);
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(108,92,231,0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(108,92,231,0.4);
}

.btn-outline {
    background: transparent;
    color: var(--gray-600);
    border: 2px solid var(--gray-200);
}

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

.btn-ghost {
    background: transparent;
    color: var(--gray-600);
    padding: 10px 16px;
}

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

.btn-lg {
    padding: 14px 32px;
    font-size: 1.05rem;
    border-radius: var(--radius-lg);
}

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

.btn-dark:hover {
    background: var(--dark-2);
    transform: translateY(-2px);
}

/* Mobile menu */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    padding: 8px;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark);
    margin: 5px 0;
    transition: var(--transition);
}

/* ---- Hero Section ---- */
.hero {
    padding: 140px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #F0EEFF 0%, #FFFFFF 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(108,92,231,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(108,92,231,0.1);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-badge svg { width: 16px; height: 16px; }

.hero h1 {
    max-width: 800px;
    margin: 0 auto 20px;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

.hero-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
    color: var(--gray-400);
    font-size: 0.85rem;
}

.hero-trust .stars { color: #F59E0B; }

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ---- Tools Grid Section ---- */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header h2 { margin-bottom: 12px; }

.section-header p {
    color: var(--gray-500);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.section-alt { background: var(--gray-100); }

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 20px;
}

.tool-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

.tool-card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.tool-card-icon svg { width: 24px; height: 24px; color: white; }

.tool-card h3 {
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.tool-card p {
    color: var(--gray-500);
    font-size: 0.9rem;
    margin-bottom: 16px;
    line-height: 1.5;
}

.tool-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.tool-card-link:hover { gap: 10px; }

/* ---- How It Works ---- */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    text-align: center;
}

.step-item { position: relative; }

.step-number {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.step-item h3 { margin-bottom: 8px; }
.step-item p { color: var(--gray-500); font-size: 0.95rem; }

/* ---- Testimonials ---- */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 28px;
}

.testimonial-stars {
    color: #F59E0B;
    font-size: 1.1rem;
    margin-bottom: 12px;
}

.testimonial-text {
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 16px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.85rem;
}

.testimonial-name { font-weight: 600; font-size: 0.9rem; }
.testimonial-role { font-size: 0.8rem; color: var(--gray-400); }

/* ---- Pricing ---- */
.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
}

.pricing-toggle span { font-size: 0.95rem; color: var(--gray-500); }
.pricing-toggle .active { color: var(--dark); font-weight: 600; }

.toggle-switch {
    width: 52px;
    height: 28px;
    background: var(--gray-300);
    border-radius: 50px;
    position: relative;
    cursor: pointer;
    transition: var(--transition);
}

.toggle-switch.active { background: var(--primary); }

.toggle-switch::after {
    content: '';
    width: 22px;
    height: 22px;
    background: white;
    border-radius: 50%;
    position: absolute;
    top: 3px;
    left: 3px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.toggle-switch.active::after { left: 27px; }

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 36px;
    position: relative;
    transition: var(--transition);
}

.pricing-card:hover { border-color: var(--primary-light); }

.pricing-card.popular {
    border-color: var(--primary);
    box-shadow: var(--shadow-xl);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 4px 16px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 4px;
}

.pricing-desc {
    font-size: 0.85rem;
    color: var(--gray-400);
    margin-bottom: 20px;
}

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

.pricing-currency { font-size: 1.5rem; font-weight: 700; }
.pricing-value { font-size: 3rem; font-weight: 800; font-family: var(--font-display); }
.pricing-period { font-size: 0.9rem; color: var(--gray-400); margin-bottom: 24px; }

.pricing-features {
    list-style: none;
    margin-bottom: 28px;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--gray-600);
}

.pricing-features li svg {
    width: 18px;
    height: 18px;
    color: var(--success);
    flex-shrink: 0;
    margin-top: 2px;
}

.pricing-btn { width: 100%; }

/* ---- FAQ ---- */
.faq-list {
    max-width: 720px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--gray-200);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    background: none;
    font-size: 1.05rem;
    font-weight: 600;
    text-align: left;
    color: var(--dark);
}

.faq-question svg {
    width: 20px;
    height: 20px;
    color: var(--gray-400);
    transition: var(--transition);
    flex-shrink: 0;
}

.faq-item.open .faq-question svg { transform: rotate(180deg); }

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer-inner {
    padding: 0 0 20px;
    color: var(--gray-500);
    font-size: 0.95rem;
    line-height: 1.7;
}

.faq-item.open .faq-answer { max-height: 300px; }

/* ---- CTA Section ---- */
.cta-section {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
    color: white;
}

.cta-section h2 { color: white; margin-bottom: 16px; }
.cta-section p { color: var(--gray-400); margin-bottom: 32px; font-size: 1.05rem; }

/* ---- Footer ---- */
.footer {
    padding: 48px 0 24px;
    border-top: 1px solid var(--gray-200);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--gray-400);
}

.footer-links {
    display: flex;
    gap: 24px;
    list-style: none;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--gray-400);
}

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

/* ---- Tool Page ---- */
.tool-page {
    padding: 100px 0 60px;
    min-height: 100vh;
}

.tool-page-header {
    margin-bottom: 40px;
}

.tool-page-header h1 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    margin-bottom: 8px;
}

.tool-page-header p {
    color: var(--gray-500);
}

.tool-layout {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 32px;
    align-items: start;
}

.tool-form-card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: sticky;
    top: 96px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: var(--transition);
    background: white;
    color: var(--dark);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(108,92,231,0.1);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%239696A6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

.credits-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(108,92,231,0.1);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 20px;
}

/* Result area */
.tool-result {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 32px;
    min-height: 400px;
}

.result-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 350px;
    text-align: center;
    color: var(--gray-400);
}

.result-placeholder svg {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    opacity: 0.3;
}

.result-content {
    line-height: 1.8;
    font-size: 0.95rem;
}

.result-content h1, .result-content h2, .result-content h3 {
    margin: 20px 0 10px;
}

.result-content strong { color: var(--dark); }

.result-content ul, .result-content ol {
    margin-left: 20px;
    margin-bottom: 16px;
}

.result-content li { margin-bottom: 8px; }

.result-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
}

.result-actions .btn { font-size: 0.85rem; padding: 8px 16px; }

/* Loading animation */
.loading-dots {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 40px;
}

.loading-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary);
    animation: bounce 1.4s infinite ease-in-out both;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

/* ---- Auth Modal ---- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: white;
    border-radius: var(--radius-xl);
    padding: 40px;
    width: 100%;
    max-width: 440px;
    transform: translateY(20px);
    transition: var(--transition);
}

.modal-overlay.active .modal { transform: translateY(0); }

.modal h2 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.modal p {
    color: var(--gray-500);
    margin-bottom: 24px;
}

.modal .form-group:last-of-type { margin-bottom: 24px; }

.modal-switch {
    text-align: center;
    margin-top: 16px;
    font-size: 0.9rem;
    color: var(--gray-500);
}

.modal-switch a {
    color: var(--primary);
    font-weight: 600;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-400);
    cursor: pointer;
}

/* ---- Alert/Toast ---- */
.toast {
    position: fixed;
    top: 88px;
    right: 24px;
    z-index: 3000;
    padding: 14px 24px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    color: white;
    transform: translateX(120%);
    transition: var(--transition);
    max-width: 400px;
}

.toast.show { transform: translateX(0); }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.info { background: var(--primary); }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .tool-layout {
        grid-template-columns: 1fr;
    }
    .tool-form-card { position: static; }
}

@media (max-width: 768px) {
    .navbar-links { display: none; }
    .mobile-toggle { display: block; }
    
    .navbar-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--gray-200);
        box-shadow: var(--shadow-lg);
    }
    
    .hero { padding: 120px 0 60px; }
    .tools-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; gap: 32px; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }
    
    .footer-inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .hero-actions { flex-direction: column; }
    
    .navbar-auth .btn-outline { display: none; }
}

/* ---- Utility ---- */
.text-center { text-align: center; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.hidden { display: none !important; }

/* Markdown rendering in results */
.result-content p { margin-bottom: 12px; }
.result-content hr { border: none; border-top: 1px solid var(--gray-200); margin: 20px 0; }
.result-content blockquote {
    border-left: 3px solid var(--primary);
    padding-left: 16px;
    margin: 16px 0;
    color: var(--gray-600);
    font-style: italic;
}
.result-content code {
    background: var(--gray-100);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}
.result-content pre {
    background: var(--dark);
    color: #e0e0e0;
    padding: 16px;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin: 16px 0;
}
.result-content pre code {
    background: none;
    padding: 0;
}