/*
@import url('https://cdn.jsdelivr.net/npm/tailwindcss@3.4.1/dist/tailwind.min.css');
*/

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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #8b5cf6;
    --secondary-dark: #7c3aed;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    --bg-white: #ffffff;
    --bg-gray-50: #f9fafb;
    --bg-gray-100: #f3f4f6;
    --bg-gray-200: #e5e7eb;
    --bg-gray-900: #111827;

    --text-gray-50: #f9fafb;
    --text-gray-100: #f3f4f6;
    --text-gray-300: #d1d5db;
    --text-gray-400: #9ca3af;
    --text-gray-500: #6b7280;
    --text-gray-600: #4b5563;
    --text-gray-700: #374151;
    --text-gray-800: #1f2937;
    --text-gray-900: #111827;

    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);

    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-gray-800);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, svg, video, canvas, audio, iframe, embed, object {
    display: block;
    max-width: 100%;
    height: auto;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-gray-900);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.875rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-gray-600);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 640px) {
    .container { padding-left: 1.5rem; padding-right: 1.5rem; }
}
@media (min-width: 1024px) {
    .container { padding-left: 2rem; padding-right: 2rem; }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.25;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-primary {
    background-color: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: #fff;
}

.btn-secondary {
    background-color: var(--secondary);
    color: #fff;
}

.btn-secondary:hover {
    background-color: var(--secondary-dark);
    color: #fff;
}

.btn-outline {
    background-color: transparent;
    border-color: var(--bg-gray-200);
    color: var(--text-gray-700);
}

.btn-outline:hover {
    background-color: var(--bg-gray-50);
    border-color: var(--bg-gray-300);
}

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

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

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-gray-700);
    margin-bottom: 0.5rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--text-gray-900);
    background-color: var(--bg-white);
    border: 1px solid var(--bg-gray-300);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-textarea {
    resize: vertical;
    min-height: 6rem;
}

.form-input-error {
    border-color: var(--danger) !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15) !important;
}

.form-error {
    display: block;
    font-size: 0.8125rem;
    color: var(--danger);
    margin-top: 0.25rem;
}

.form-hint {
    display: block;
    font-size: 0.8125rem;
    color: var(--text-gray-500);
    margin-top: 0.25rem;
}

.card {
    background-color: var(--bg-white);
    border: 1px solid var(--bg-gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
}

.card-header {
    padding-bottom: 1rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--bg-gray-200);
}

.card-footer {
    padding-top: 1rem;
    margin-top: 1rem;
    border-top: 1px solid var(--bg-gray-200);
}

.alert {
    position: relative;
    padding: 0.875rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

.alert-success {
    background-color: #ecfdf5;
    border-color: #a7f3d0;
    color: #065f46;
}

.alert-error {
    background-color: #fef2f2;
    border-color: #fecaca;
    color: #991b1b;
}

.alert-info {
    background-color: #eff6ff;
    border-color: #bfdbfe;
    color: #1e40af;
}

.alert-warning {
    background-color: #fffbeb;
    border-color: #fde68a;
    color: #92400e;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    line-height: 1.5;
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.badge-info {
    background-color: #dbeafe;
    color: #1e40af;
}

.navbar {
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--bg-gray-200);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.navbar-brand {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-gray-900);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand:hover {
    text-decoration: none;
    color: var(--primary);
}

.navbar-nav {
    display: none;
    align-items: center;
    gap: 0.5rem;
}

@media (min-width: 768px) {
    .navbar-nav {
        display: flex;
    }
}

.navbar-link {
    padding: 0.5rem 0.875rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-gray-600);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.navbar-link:hover,
.navbar-link.active {
    background-color: var(--bg-gray-100);
    color: var(--text-gray-900);
    text-decoration: none;
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer {
    background-color: var(--bg-gray-50);
    border-top: 1px solid var(--bg-gray-200);
    padding: 3rem 0 1.5rem;
    margin-top: 3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(1, minmax(0, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

.footer-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-gray-900);
    margin-bottom: 1rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    list-style: none;
}

.footer-link {
    font-size: 0.875rem;
    color: var(--text-gray-500);
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--primary);
    text-decoration: none;
}

.footer-bottom {
    padding-top: 1.5rem;
    border-top: 1px solid var(--bg-gray-200);
    text-align: center;
    font-size: 0.8125rem;
    color: var(--text-gray-500);
}

.hero {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #fff;
    text-align: center;
}

.hero h1 {
    color: #fff;
    margin-bottom: 1rem;
}

.hero p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.125rem;
    max-width: 42rem;
    margin: 0 auto 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero .btn-primary {
    background-color: #fff;
    color: var(--primary);
}

.hero .btn-primary:hover {
    background-color: var(--bg-gray-100);
    color: var(--primary-dark);
}

.hero .btn-outline {
    border-color: rgba(255, 255, 255, 0.5);
    color: #fff;
}

.hero .btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.7);
    color: #fff;
}

.section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 0.75rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-gray-500);
    max-width: 42rem;
    margin: 0 auto 3rem;
    font-size: 1.0625rem;
}

.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }

.text-gray-500 { color: var(--text-gray-500); }
.text-gray-600 { color: var(--text-gray-600); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-primary { color: var(--primary); }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }

.w-full { width: 100%; }
.w-auto { width: auto; }
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

@media (min-width: 768px) {
    .md\:block { display: block; }
    .md\:hidden { display: none; }
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: 24rem;
}

.toast {
    padding: 0.875rem 1rem;
    background-color: var(--bg-white);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    animation: toastIn 0.3s ease-out;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }
.toast.info { border-left-color: var(--info); }

.toast-icon {
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.toast-body {
    flex: 1;
    min-width: 0;
}

.toast-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-gray-900);
    margin: 0;
}

.toast-message {
    font-size: 0.8125rem;
    color: var(--text-gray-600);
    margin: 0.125rem 0 0;
}

.toast-close {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    color: var(--text-gray-400);
    font-size: 1.25rem;
    line-height: 1;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
    flex-shrink: 0;
}

.toast-close:hover {
    opacity: 1;
    color: var(--text-gray-700);
}

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

.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    padding: 1rem;
}

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

.modal {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-2xl);
    width: 100%;
    max-width: 32rem;
    transform: scale(0.95);
    transition: transform var(--transition-base);
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--bg-gray-200);
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-gray-900);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    padding: 0.25rem;
    cursor: pointer;
    color: var(--text-gray-400);
    font-size: 1.5rem;
    line-height: 1;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--bg-gray-100);
    color: var(--text-gray-700);
}

.modal-body {
    padding: 1.25rem;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--bg-gray-200);
}

.avatar {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-full);
    object-fit: cover;
    background-color: var(--bg-gray-200);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-gray-500);
    font-weight: 600;
    font-size: 0.875rem;
}

.avatar-lg {
    width: 4rem;
    height: 4rem;
    font-size: 1.25rem;
}

.avatar-sm {
    width: 1.75rem;
    height: 1.75rem;
    font-size: 0.75rem;
}

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

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

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

.pricing-card.popular::before {
    content: 'Most Popular';
    position: absolute;
    top: -0.875rem;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.875rem;
    border-radius: var(--radius-full);
}

.pricing-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-gray-900);
    margin-bottom: 0.5rem;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
    margin-bottom: 1.5rem;
}

.pricing-amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-gray-900);
    line-height: 1;
}

.pricing-period {
    color: var(--text-gray-500);
    font-size: 0.875rem;
}

.pricing-description {
    color: var(--text-gray-600);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.pricing-features {
    list-style: none;
    margin: 0 0 2rem;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-gray-600);
}

.pricing-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.spinner {
    width: 1.5rem;
    height: 1.5rem;
    border: 3px solid var(--bg-gray-200);
    border-top-color: var(--primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

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