/* ===== CSS Variables ===== */
:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #e0e7ff;
    --secondary: #8b5cf6;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --dark: #1f2937;
    --darker: #111827;
    --light: #f8fafc;
    --lighter: #f1f5f9;
    --text: #374151;
    --text-light: #6b7280;
    --text-lighter: #9ca3af;
    --border: #e5e7eb;
    --border-dark: #374151;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-dark: linear-gradient(135deg, var(--dark) 0%, var(--darker) 100%);
    --gradient-success: linear-gradient(135deg, var(--success) 0%, #34d399 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Dark Mode Variables ===== */
.dark-mode {
    --light: #1f2937;
    --lighter: #111827;
    --dark: #f8fafc;
    --darker: #f1f5f9;
    --text: #e5e7eb;
    --text-light: #d1d5db;
    --text-lighter: #9ca3af;
    --border: #374151;
    --border-dark: #e5e7eb;
}

/* ===== Reset & Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--light);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    transition: var(--transition);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark);
}

.dark-mode h1,
.dark-mode h2,
.dark-mode h3,
.dark-mode h4,
.dark-mode h5,
.dark-mode h6 {
    color: var(--darker);
}

/* ===== Navigation ===== */
.navbar {
    background: linear-gradient(135deg, #00d4aa 0%, #6c5ce7 100%);
    backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.dark-mode .navbar {
    background: rgba(31, 41, 55, 0.8);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2.5rem;
}

.nav-brand {
    display: flex;
    align-items: center;
}

.brand-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
}

.nav-logo {
    height: 32px;
    width: auto;
    margin-right: 0.75rem;
}

.brand-text {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    color: #fff;
    text-decoration: none;
    border-radius: var(--radius);
    font-weight: 500;
    transition: var(--transition);
    border: none;
    background: none;
    cursor: pointer;
}

.dark-mode .nav-link {
    color: var(--text-light);
}

.nav-link:hover {
    background: var(--primary-light);
    color: var(--primary);
    transform: translateY(-1px);
}

.dark-mode .nav-link:hover {
    background: rgba(99, 102, 241, 0.1);
}

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

.login-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.upgrade-link {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white !important;
}

.upgrade-link:hover {
    background: linear-gradient(135deg, #d97706, #b45309);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background: var(--lighter);
    border-radius: var(--radius);
    margin-right: 0.5rem;
}

.dark-mode .user-info {
    background: rgba(55, 65, 81, 0.5);
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.875rem;
}

.user-details {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.username {
    font-weight: 600;
    font-size: 0.875rem;
}

.user-badge {
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-free {
    background: var(--lighter);
    color: var(--text-light);
}

.badge-member {
    background: var(--primary-light);
    color: var(--primary);
}

.badge-vip {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
}

.dark-mode .badge-free {
    background: rgba(55, 65, 81, 0.8);
    color: var(--text-lighter);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

.dark-mode .nav-toggle span {
    background: var(--text-light);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.dark-mode-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text);
    transition: var(--transition);
}

.dark-mode-toggle.active {
    color: var(--warning);
}

.dark-mode .dark-mode-toggle {
    color: var(--text-light);
}

/* ===== Hero Section ===== */
.hero {
    background: var(--gradient-primary);
    color: white;
    padding: 6rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="rgba(255,255,255,0.05)"><polygon points="1000,0 1000,100 0,100"></polygon></svg>');
    background-size: cover;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    color: white;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.95;
    font-weight: 400;
    line-height: 1.6;
    margin-bottom: 3rem;
    color: rgba(255, 255, 255, 0.9);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    color: white;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: rgba(255, 255, 255, 0.9);
}

/* ===== Main Content ===== */
.main {
    padding: 2rem 0 4rem;
}

/* ===== Shorten Card ===== */
.shorten-card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    margin: -4rem auto 4rem;
    position: relative;
    z-index: 10;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.dark-mode .shorten-card {
    background: var(--light);
    border-color: var(--border-dark);
}

.shorten-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* ===== Form Styles ===== */
.form-group {
    margin-bottom: 2rem;
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.dark-mode .form-label {
    color: var(--darker);
}

.input-group {
    display: flex;
    gap: 1rem;
}

.url-input {
    flex: 1;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    background: white;
    color: var(--text);
}

.dark-mode .url-input {
    background: var(--lighter);
    border-color: var(--border-dark);
    color: var(--text-light);
}

.url-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    transform: translateY(-1px);
}

.submit-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    white-space: nowrap;
}

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

.submit-btn:active {
    transform: translateY(0);
}

.submit-btn.loading {
    pointer-events: none;
    opacity: 0.8;
}

.submit-btn.loading i {
    animation: spin 1s linear infinite;
}

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

/* ===== Advanced Options ===== */
.advanced-options {
    border-top: 1px solid var(--border);
    padding-top: 2rem;
}

.dark-mode .advanced-options {
    border-top-color: var(--border-dark);
}

.options-header {
    margin-bottom: 1.5rem;
}

.options-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: none;
    border: none;
    color: var(--primary);
    font-weight: 600;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

.options-toggle:hover {
    background: var(--primary-light);
}

.dark-mode .options-toggle:hover {
    background: rgba(99, 102, 241, 0.1);
}

.options-toggle .fa-chevron-down {
    transition: var(--transition);
}

.options-toggle .fa-chevron-down.rotated {
    transform: rotate(180deg);
}

.options-content {
    display: none;
}

.options-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.option-group {
    position: relative;
}

.option-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.dark-mode .option-label {
    color: var(--darker);
}

.custom-input-group,
.password-input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.prefix {
    background: var(--lighter);
    border: 2px solid var(--border);
    border-right: none;
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
    padding: 1rem 1rem;
    font-weight: 600;
    color: var(--text-light);
    white-space: nowrap;
}

.dark-mode .prefix {
    background: var(--light);
    border-color: var(--border-dark);
    color: var(--text-lighter);
}

.custom-input,
.password-input {
    flex: 1;
    border: 2px solid var(--border);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    padding: 1rem 1rem;
    transition: var(--transition);
    background: white;
    color: var(--text);
}

.dark-mode .custom-input,
.dark-mode .password-input {
    background: var(--lighter);
    border-color: var(--border-dark);
    color: var(--text-light);
}

.password-input {
    border-radius: var(--radius-lg);
    padding-left: 3rem;
}

.input-icon {
    position: absolute;
    left: 1rem;
    color: var(--text-lighter);
    z-index: 2;
}

.custom-input:focus,
.password-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.custom-input:disabled,
.password-input:disabled {
    background: var(--lighter);
    color: var(--text-lighter);
    cursor: not-allowed;
}

.dark-mode .custom-input:disabled,
.dark-mode .password-input:disabled {
    background: rgba(55, 65, 81, 0.5);
    color: var(--text-lighter);
}

/* ===== Feature Badges ===== */
.feature-badge {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    z-index: 3;
    cursor: pointer;
    transition: var(--transition);
}

.feature-badge:hover {
    transform: translateY(-50%) scale(1.05);
}

.vip-badge {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
}

.member-badge {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

/* ===== Splash Options ===== */
.splash-options {
    margin-top: 1.5rem;
}

.radio-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition);
    flex: 1;
    min-width: 200px;
}

.dark-mode .radio-option {
    border-color: var(--border-dark);
}

.radio-option:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.radio-option input[type="radio"] {
    display: none;
}

.radio-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-radius: 50%;
    position: relative;
    transition: var(--transition);
    flex-shrink: 0;
}

.dark-mode .radio-custom {
    border-color: var(--border-dark);
}

.radio-option input[type="radio"]:checked + .radio-custom {
    border-color: var(--primary);
    background: var(--primary);
}

.radio-option input[type="radio"]:checked + .radio-custom::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
}

.radio-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.radio-content i {
    color: var(--primary);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.radio-text {
    flex: 1;
}

.radio-title {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.25rem;
}

.dark-mode .radio-title {
    color: var(--darker);
}

.radio-desc {
    font-size: 0.875rem;
    color: var(--text-light);
    line-height: 1.4;
}

/* ===== Result Container ===== */
.result-container {
    display: none;
    animation: fadeIn 0.6s ease;
}

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

.result-success {
    background: var(--gradient-success);
    color: white;
    border-radius: var(--radius-xl);
    padding: 3rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.success-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    animation: bounceIn 1s ease;
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.success-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.success-link {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.link-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: var(--radius-lg);
    padding: 1rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    text-align: center;
}

.copy-btn {
    color: white;
    border-radius: var(--radius-lg);
    padding: 1rem 1.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.copy-btn.copied {
    background: var(--success);
    border-color: var(--success);
}

.result-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.action-btn {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.qr-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

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

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

.share-section {
    margin: 2rem 0;
}

.share-title {
    margin-bottom: 1rem;
    font-weight: 600;
}

.share-buttons {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

.share-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.25rem;
}

.share-btn.facebook { background: #1877f2; }
.share-btn.twitter { background: #1da1f2; }
.share-btn.linkedin { background: #0a66c2; }
.share-btn.whatsapp { background: #25d366; }

.share-btn:hover {
    transform: translateY(-2px) scale(1.1);
    box-shadow: var(--shadow);
}

.create-new {
    margin-top: 2rem;
}

.new-link-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    border-radius: var(--radius-lg);
    padding: 1rem 2rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.new-link-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* ===== Features Section ===== */
.features-section {
    margin: 4rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--dark);
}

.dark-mode .section-title {
    color: var(--darker);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.dark-mode .feature-card {
    background: var(--light);
    border-color: var(--border-dark);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--primary);
    font-size: 2rem;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    background: var(--gradient-primary);
    color: white;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1rem;
}

.dark-mode .feature-title {
    color: var(--darker);
}

.feature-desc {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===== Stats Section ===== */
.stats-section {
    margin: 4rem 0;
    padding: 4rem 0;
    background: #0057ae;
}

.dark-mode .stats-section {
    background: var(--darker);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.dark-mode .stat-item {
    background: var(--light);
}

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

.stat-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.75rem;
    flex-shrink: 0;
}

.stat-content {
    flex: 1;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: #fff;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== CTA Section ===== */
.cta-section {
    background: var(--gradient-dark);
    color: white;
    padding: 5rem 0;
    text-align: center;
    border-radius: var(--radius-xl);
    margin: 4rem 0;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: white;
}

.cta-content p {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-btn {
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.cta-btn.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

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

.cta-btn.primary:hover {
    background: var(--primary-dark);
}

.cta-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: white;
    padding: 4rem 0 2rem;
    margin-top: 4rem;
}

.dark-mode .footer {
    background: var(--darker);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-main {
    max-width: 400px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-text {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-link:hover {
    color: white;
    transform: translateX(5px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-copyright {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-meta .fa-heart {
    color: #ef4444;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}
.nav-badge {
    display: inline-block;
    padding: 4px 10px;
    background: linear-gradient(45deg, #00ffbf, #00c3ff);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 255, 200, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    user-select: none;
    animation: badgeFade 0.3s ease;
}
@keyframes badgeFade {
    from { opacity: 0; transform: translateY(-3px); }
    to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, #00d4aa 0%, #6c5ce7 100%);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow-lg);
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .dark-mode .nav-menu {
        background: var(--light);
    }
    .dark-mode .nav-badge {
    display: inline-block;
    padding: 4px 12px;
    background: #1f2937;
    color: #00eaff;
    border: 1px solid rgba(0, 234, 255, 0.4);
    font-size: 12px;
    border-radius: 8px;
    font-weight: 600;
    text-transform: uppercase;
}

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        justify-content: center;
        border-radius: var(--radius);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .shorten-card {
        padding: 2rem 1.5rem;
        margin: -2rem auto 3rem;
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .options-grid {
        grid-template-columns: 1fr;
    }
    
    .success-link {
        flex-direction: column;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-btn {
        width: 200px;
        justify-content: center;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        gap: 1.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .shorten-card {
        padding: 1.5rem 1rem;
    }
    
    .feature-card,
    .stat-item {
        padding: 2rem 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
}

/* ===== Utility Classes ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }

.hidden { display: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }