/* CSS Variables */
:root {
    --primary-color: #003b5c;
    --secondary-color: #84754e;
    --tertiary-color: #f4f2ed;
    --text-color: #333333;
    --text-secondary: #666666;
    --error-color: #d32f2f;
    --success-color: #388e3c;
    --warning-color: #f57c00;
    --border-color: #e0e0e0;
    --background-color: #ffffff;
    --background-secondary: #f5f5f7;
    --shadow-light: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-medium: 0 4px 12px rgba(0,0,0,0.12);
    --shadow-heavy: 0 8px 24px rgba(0,0,0,0.16);
    --border-radius: 12px;
    --border-radius-small: 8px;
    --transition-default: all 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Avenir Next LT Pro", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-secondary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--secondary-color);
}

/* Layout Components */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.header {
    background-color: var(--background-color);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.header__logo {
    height: 40px;
}

.header__nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.header__nav-link {
    font-weight: 500;
    color: var(--text-color);
    position: relative;
}

.header__nav-link--active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
}

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

/* Main Content */
.main {
    min-height: calc(100vh - 160px);
    padding: 3rem 0;
}

/* Cards */
.card {
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    padding: 2rem;
    margin-bottom: 1.5rem;
    transition: var(--transition-default);
}

.card:hover {
    box-shadow: var(--shadow-medium);
}

.card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.card__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.card__body {
    color: var(--text-secondary);
}

/* Forms */
.form {
    max-width: 400px;
    margin: 0 auto;
}

.form__group {
    margin-bottom: 1.5rem;
}

.form__label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.form__input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-small);
    font-size: 1rem;
    transition: var(--transition-default);
    background-color: var(--background-color);
}

.form__input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 59, 92, 0.1);
}

.form__input--error {
    border-color: var(--error-color);
}

.form__error {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.form__help {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius-small);
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-default);
    text-decoration: none;
    line-height: 1;
}

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

.btn--primary:hover {
    background-color: #002a42;
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

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

.btn--secondary:hover {
    background-color: #6b5f3e;
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

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

.btn--danger:hover {
    background-color: #b71c1c;
}

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

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

.btn--block {
    display: block;
    width: 100%;
}

.btn--small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn--large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Tables */
.table {
    width: 100%;
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
}

.table__header {
    background-color: var(--background-secondary);
}

.table__row {
    border-bottom: 1px solid var(--border-color);
}

.table__row:last-child {
    border-bottom: none;
}

.table__cell {
    padding: 1rem;
    text-align: left;
}

.table__cell--header {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-small);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.alert--success {
    background-color: #e8f5e9;
    color: var(--success-color);
}

.alert--error {
    background-color: #ffebee;
    color: var(--error-color);
}

.alert--warning {
    background-color: #fff3e0;
    color: var(--warning-color);
}

.alert--info {
    background-color: #e3f2fd;
    color: var(--primary-color);
}

/* Loading States */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 59, 92, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

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

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-message {
    text-align: center;
    padding: 2rem;
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-heavy);
}

.loading-message__spinner {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    padding: 2rem;
    overflow-y: auto;
}

.modal--active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal__content {
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-heavy);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal__header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.modal__close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition-default);
}

.modal__close:hover {
    color: var(--text-color);
}

.modal__body {
    padding: 1.5rem;
}

.modal__footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* Dashboard Specific */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-light);
}

.stat-card__value {
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-card__label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Website Grid */
.website-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.website-card {
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-light);
    transition: var(--transition-default);
}

.website-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.website-card__header {
    margin-bottom: 1rem;
}

.website-card__title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.website-card__url {
    color: var(--primary-color);
    font-size: 0.875rem;
    word-break: break-all;
}

.website-card__meta {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.website-card__actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-secondary); }
.text-small { font-size: 0.875rem; }
.text-large { font-size: 1.125rem; }

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

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

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }
.p-5 { padding: 3rem; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.align-items-center { align-items: center; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-end { justify-content: flex-end; }

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .header__nav {
        gap: 1rem;
    }
    
    .dashboard-stats {
        grid-template-columns: 1fr;
    }
    
    .website-grid {
        grid-template-columns: 1fr;
    }
    
    .modal {
        padding: 1rem;
    }
}