/* ========================================
   CUTT.AL - Main Stylesheet
   ======================================== */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #ec4899;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --bg-card: #1e293b;
    --bg-light: #f8fafc;
    
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-dark: #0f172a;
    
    --border: #334155;
    --border-light: #e2e8f0;
    
    --gradient: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
    --gradient-2: linear-gradient(135deg, #06b6d4 0%, #6366f1 100%);
    
    --radius-sm: 6px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   NAVBAR
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    padding: 16px 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 800;
    font-size: 24px;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 16px;
    box-shadow: var(--shadow-glow);
}

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

.logo-dot {
    color: var(--secondary);
    -webkit-text-fill-color: var(--secondary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-menu a:not(.btn):not(.btn-icon) {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-size: 15px;
    transition: all 0.2s;
    font-family: inherit;
    white-space: nowrap;
}

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

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

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

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

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

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

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

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

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 17px;
}

.btn-icon {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--bg-card);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    border: 1px solid var(--border);
}

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

.btn-block {
    width: 100%;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 100px;
    color: var(--primary-light);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero h1 .highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

/* Quick Shorten Form */
.shorten-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 8px;
    display: flex;
    gap: 8px;
    max-width: 700px;
    margin: 0 auto 24px;
    box-shadow: var(--shadow-lg);
}

.shorten-box input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 16px 20px;
    color: var(--text-primary);
    font-size: 16px;
    outline: none;
    font-family: inherit;
}

.shorten-box input::placeholder {
    color: var(--text-muted);
}

.shorten-result {
    max-width: 700px;
    margin: 24px auto 0;
    background: var(--bg-card);
    border: 1px solid var(--success);
    border-radius: var(--radius);
    padding: 20px;
    display: none;
    animation: slideDown 0.3s;
}

.shorten-result.active {
    display: block;
}

.shorten-result-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.short-url {
    flex: 1;
    min-width: 200px;
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-light);
    word-break: break-all;
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 64px;
    flex-wrap: wrap;
}

.hero-stat {
    text-align: center;
}

.hero-stat-value {
    font-size: 32px;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-stat-label {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 4px;
}

/* ========================================
   SECTIONS
   ======================================== */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px;
}

.section-badge {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-light);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

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

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient);
    transform: translateY(-100%);
    transition: transform 0.3s;
}

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

.feature-card:hover::before {
    transform: translateY(0);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 24px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================================
   HOW IT WORKS
   ======================================== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    position: relative;
}

.step-card {
    text-align: center;
    padding: 24px;
}

.step-number {
    width: 64px;
    height: 64px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 800;
    color: white;
    margin: 0 auto 20px;
    box-shadow: var(--shadow-glow);
}

.step-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

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

/* ========================================
   PRICING
   ======================================== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    position: relative;
    transition: all 0.3s;
}

.pricing-card.popular {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(99, 102, 241, 0.05) 100%);
    transform: scale(1.05);
}

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

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

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    color: white;
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
}

.pricing-name {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.pricing-price {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 8px;
}

.pricing-price span {
    font-size: 16px;
    color: var(--text-muted);
    font-weight: 500;
}

.pricing-description {
    color: var(--text-secondary);
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

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

.pricing-features li {
    padding: 8px 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.pricing-features li i {
    color: var(--success);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border);
    padding: 64px 0 24px;
    margin-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-col a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 6px 0;
    transition: color 0.2s;
}

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

.footer-col p {
    color: var(--text-secondary);
    margin-top: 16px;
    max-width: 300px;
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 14px;
    flex-wrap: wrap;
    gap: 16px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 36px;
    height: 36px;
    background: var(--bg-card);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s;
}

.social-links a:hover {
    background: var(--primary);
    color: white;
}

/* ========================================
   FORMS - AUTH PAGES
   ======================================== */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 40px;
    position: relative;
}

.auth-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 48px;
    width: 100%;
    max-width: 460px;
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-header h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.auth-header p {
    color: var(--text-secondary);
}

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

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 16px;
    color: var(--text-primary);
    font-size: 15px;
    font-family: inherit;
    transition: all 0.2s;
    outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-input-group {
    position: relative;
}

.form-input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.form-input-group .form-input {
    padding-left: 44px;
}

.form-divider {
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    margin: 24px 0;
    position: relative;
}

.form-divider::before,
.form-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background: var(--border);
}

.form-divider::before { left: 0; }
.form-divider::after { right: 0; }

.auth-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--text-secondary);
    font-size: 14px;
}

.auth-footer a {
    color: var(--primary-light);
    text-decoration: none;
    font-weight: 600;
}

/* ========================================
   FLASH MESSAGES
   ======================================== */
.flash-message {
    position: fixed;
    top: 90px;
    right: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    max-width: 400px;
    animation: slideInRight 0.3s;
}

.flash-success { border-color: var(--success); color: var(--success); }
.flash-error { border-color: var(--danger); color: var(--danger); }
.flash-warning { border-color: var(--warning); color: var(--warning); }

.flash-message button {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    margin-left: auto;
}

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

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-card);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
    }
    
    .nav-menu.active { display: flex; }
    .nav-toggle { display: block; }
    
    .shorten-box {
        flex-direction: column;
        padding: 16px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    
    .pricing-card.popular {
        transform: none;
    }
    
    .pricing-card.popular:hover {
        transform: translateY(-4px);
    }
    
    .hero-stats { gap: 24px; }
    .auth-card { padding: 32px 24px; }
}

@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
    .hero { padding: 100px 0 60px; }
}