/**
 * Rivus Components — UI Component Library
 * Buttons, cards, tables, badges, alerts, forms, stats
 * v1.0.0
 */

/* ============================================================
   BUTTONS
   ============================================================ */
.aws-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 6px 16px;
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--font-medium);
    line-height: 1.5;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
    user-select: none;
}
.aws-button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Primary — orange */
.aws-button-primary {
    background: var(--aws-orange);
    border-color: var(--aws-orange-hover);
    color: #000000;
}
.aws-button-primary:hover:not(:disabled) {
    background: var(--aws-orange-hover);
    border-color: #c05e0a;
    color: #000000;
    text-decoration: none;
}

/* Secondary — outlined */
.aws-button-secondary {
    background: transparent;
    border-color: var(--aws-border-primary);
    color: var(--aws-text-primary);
}
.aws-button-secondary:hover:not(:disabled) {
    background: var(--aws-bg-hover);
    border-color: var(--aws-text-secondary);
    color: var(--aws-text-primary);
    text-decoration: none;
}

/* Tertiary — ghost */
.aws-button-tertiary {
    background: transparent;
    border-color: transparent;
    color: var(--aws-text-link);
}
.aws-button-tertiary:hover:not(:disabled) {
    background: var(--aws-bg-hover);
    color: var(--aws-blue-light);
    text-decoration: none;
}

/* Danger */
.aws-button-danger {
    background: var(--aws-red);
    border-color: #b02a0f;
    color: #ffffff;
}
.aws-button-danger:hover:not(:disabled) {
    background: #b02a0f;
    color: #ffffff;
    text-decoration: none;
}

/* Accent — rivus cyan */
.aws-button-accent {
    background: var(--rivus-accent);
    border-color: var(--rivus-accent-hover);
    color: #000000;
}
.aws-button-accent:hover:not(:disabled) {
    background: var(--rivus-accent-hover);
    color: #000000;
    text-decoration: none;
}

/* Sizes */
.aws-button-sm {
    padding: 3px 10px;
    font-size: var(--text-sm);
}
.aws-button-lg {
    padding: 10px 24px;
    font-size: var(--text-lg);
}
.aws-button-block {
    width: 100%;
}

/* ============================================================
   CARDS
   ============================================================ */
.aws-card {
    background: var(--aws-bg-secondary);
    border: 1px solid var(--aws-border-subtle);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.aws-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
    border-bottom: 1px solid var(--aws-border-subtle);
    background: var(--aws-bg-tertiary);
}

.aws-card-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--aws-text-primary);
}

.aws-card-body {
    padding: var(--space-4);
}

.aws-card-footer {
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--aws-border-subtle);
    background: var(--aws-bg-elevated);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* ============================================================
   STAT CARDS (Dashboard)
   ============================================================ */
.aws-stat-card {
    background: var(--aws-bg-secondary);
    border: 1px solid var(--aws-border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    text-align: center;
    transition: border-color var(--transition-normal);
}
.aws-stat-card:hover {
    border-color: var(--aws-border-primary);
}

.aws-stat-value {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    line-height: 1.1;
    margin-bottom: var(--space-1);
}

.aws-stat-label {
    font-size: var(--text-sm);
    color: var(--aws-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: var(--font-medium);
}

.aws-stat-sublabel {
    font-size: var(--text-xs);
    color: var(--aws-text-tertiary);
    margin-top: var(--space-1);
}

/* ============================================================
   TABLES
   ============================================================ */
.aws-table-container {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--aws-border-subtle);
    border-radius: var(--radius-md);
}

.aws-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-base);
}

.aws-table thead {
    background: var(--aws-bg-tertiary);
}

.aws-table th {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--aws-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--aws-border-primary);
    white-space: nowrap;
}

.aws-table td {
    padding: var(--space-3) var(--space-4);
    color: var(--aws-text-primary);
    border-bottom: 1px solid var(--aws-border-subtle);
    vertical-align: middle;
}

.aws-table tbody tr:last-child td {
    border-bottom: none;
}

.aws-table tbody tr:hover {
    background: var(--aws-bg-hover);
}

.aws-table-compact th,
.aws-table-compact td {
    padding: var(--space-2) var(--space-3);
}

/* ============================================================
   BADGES
   ============================================================ */
.aws-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    border-radius: 12px;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.aws-badge-success {
    background: var(--status-ok-bg);
    color: var(--status-ok-text);
    border: 1px solid var(--status-ok);
}
.aws-badge-warning {
    background: var(--status-warn-bg);
    color: var(--status-warn-text);
    border: 1px solid var(--status-warn);
}
.aws-badge-danger {
    background: var(--status-error-bg);
    color: var(--status-error-text);
    border: 1px solid var(--status-error);
}
.aws-badge-info {
    background: var(--status-info-bg);
    color: var(--status-info-text);
    border: 1px solid var(--status-info);
}
.aws-badge-neutral {
    background: var(--status-unknown-bg);
    color: var(--status-unknown-text);
    border: 1px solid var(--status-unknown);
}
.aws-badge-accent {
    background: rgba(0, 188, 212, 0.1);
    color: var(--rivus-accent);
    border: 1px solid var(--rivus-accent-dim);
}
.aws-badge-orange {
    background: rgba(255, 153, 0, 0.1);
    color: var(--aws-orange);
    border: 1px solid var(--aws-orange-dim);
}

/* Status dot */
.aws-status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.aws-status-dot-ok      { background: var(--status-ok-text); }
.aws-status-dot-warn    { background: var(--status-warn-text); }
.aws-status-dot-error   { background: var(--status-error-text); }
.aws-status-dot-unknown { background: var(--aws-text-tertiary); }
.aws-status-dot-accent  { background: var(--rivus-accent); }

/* Pulse animation for live status */
.aws-status-dot-pulse {
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.4; }
}

/* ============================================================
   ALERTS
   ============================================================ */
.aws-alert {
    padding: var(--space-4);
    border-radius: var(--radius-md);
    border: 1px solid;
    margin-bottom: var(--space-4);
}
.aws-alert-title {
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
    font-size: var(--text-base);
}
.aws-alert-message {
    font-size: var(--text-base);
    color: var(--aws-text-secondary);
}

.aws-alert-success {
    background: var(--status-ok-bg);
    border-color: var(--status-ok);
    color: var(--status-ok-text);
}
.aws-alert-warning {
    background: var(--status-warn-bg);
    border-color: var(--status-warn);
    color: var(--status-warn-text);
}
.aws-alert-danger {
    background: var(--status-error-bg);
    border-color: var(--status-error);
    color: var(--status-error-text);
}
.aws-alert-info {
    background: var(--status-info-bg);
    border-color: var(--status-info);
    color: var(--status-info-text);
}

/* ============================================================
   FORMS
   ============================================================ */
.aws-form-group {
    margin-bottom: var(--space-4);
}

.aws-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--aws-text-secondary);
    margin-bottom: var(--space-2);
}
.aws-label-required::after {
    content: ' *';
    color: var(--aws-red-light);
}

.aws-input,
.aws-select,
.aws-textarea {
    width: 100%;
    padding: 8px 12px;
    font-family: var(--font-primary);
    font-size: var(--text-base);
    color: var(--aws-text-primary);
    background: var(--aws-bg-input);
    border: 1px solid var(--aws-border-primary);
    border-radius: var(--radius-md);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.aws-input:focus,
.aws-select:focus,
.aws-textarea:focus {
    border-color: var(--aws-border-focus);
    box-shadow: 0 0 0 2px rgba(9, 114, 211, 0.2);
}
.aws-input::placeholder { color: var(--aws-text-tertiary); }
.aws-input-error { border-color: var(--aws-red) !important; }

.aws-input-password {
    font-family: var(--font-mono);
    letter-spacing: 0.1em;
}

.aws-form-help {
    display: block;
    font-size: var(--text-xs);
    color: var(--aws-text-tertiary);
    margin-top: var(--space-1);
}
.aws-form-error {
    display: block;
    font-size: var(--text-xs);
    color: var(--status-error-text);
    margin-top: var(--space-1);
}

/* ============================================================
   CODE BLOCKS
   ============================================================ */
.aws-code-block {
    background: var(--aws-bg-elevated);
    border: 1px solid var(--aws-border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--aws-text-secondary);
    overflow-x: auto;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-all;
}

/* ============================================================
   KEY-VALUE PAIRS (detail rows)
   ============================================================ */
.aws-kv-list {
    list-style: none;
}
.aws-kv-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--aws-border-subtle);
    font-size: var(--text-base);
}
.aws-kv-item:last-child { border-bottom: none; }
.aws-kv-key {
    flex: 0 0 200px;
    font-weight: var(--font-medium);
    color: var(--aws-text-secondary);
    font-size: var(--text-sm);
    padding-top: 1px;
}
.aws-kv-value {
    flex: 1;
    color: var(--aws-text-primary);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    word-break: break-all;
}

/* ============================================================
   PROGRESS BAR
   ============================================================ */
.aws-progress {
    height: 6px;
    background: var(--aws-border-subtle);
    border-radius: 3px;
    overflow: hidden;
}
.aws-progress-bar {
    height: 100%;
    border-radius: 3px;
    background: var(--aws-orange);
    transition: width var(--transition-slow);
}
.aws-progress-bar-green  { background: var(--status-ok-text); }
.aws-progress-bar-red    { background: var(--status-error-text); }
.aws-progress-bar-accent { background: var(--rivus-accent); }

/* ============================================================
   LOADING SPINNER
   ============================================================ */
.aws-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--aws-border-primary);
    border-top-color: var(--aws-orange);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}
.aws-spinner-sm { width: 14px; height: 14px; }
.aws-spinner-lg { width: 32px; height: 32px; border-width: 3px; }

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

/* ============================================================
   DIVIDER
   ============================================================ */
.aws-divider {
    border: none;
    border-top: 1px solid var(--aws-border-subtle);
    margin: var(--space-6) 0;
}

/* ============================================================
   EMPTY STATE
   ============================================================ */
.aws-empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-8);
    color: var(--aws-text-tertiary);
}
.aws-empty-state-icon {
    font-size: 48px;
    margin-bottom: var(--space-4);
    opacity: 0.5;
}
.aws-empty-state-title {
    font-size: var(--text-xl);
    color: var(--aws-text-secondary);
    margin-bottom: var(--space-2);
}
.aws-empty-state-message {
    font-size: var(--text-base);
}

/* ============================================================
   CONNECTION STATUS CARD (Rivus-specific)
   ============================================================ */
.rivus-connection-card {
    background: var(--aws-bg-secondary);
    border: 1px solid var(--aws-border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    transition: border-color var(--transition-normal);
}
.rivus-connection-card.connected    { border-left: 3px solid var(--status-ok-text); }
.rivus-connection-card.disconnected { border-left: 3px solid var(--status-error-text); }
.rivus-connection-card.unknown      { border-left: 3px solid var(--aws-text-tertiary); }

.rivus-connection-icon {
    font-size: 28px;
    flex-shrink: 0;
}
.rivus-connection-info { flex: 1; }
.rivus-connection-name {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--aws-text-primary);
    margin-bottom: 2px;
}
.rivus-connection-detail {
    font-size: var(--text-sm);
    color: var(--aws-text-secondary);
    font-family: var(--font-mono);
}

/* ============================================================
   REPLICATION READINESS (Rivus-specific)
   ============================================================ */
.rivus-readiness-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--aws-border-subtle);
    gap: var(--space-3);
}
.rivus-readiness-row:last-child { border-bottom: none; }

.rivus-readiness-var {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--aws-text-primary);
    flex: 0 0 240px;
}
.rivus-readiness-current {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--aws-text-secondary);
    flex: 1;
}
.rivus-readiness-required {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--aws-text-tertiary);
    flex: 1;
}
.rivus-readiness-status {
    flex: 0 0 80px;
    text-align: right;
}