/* ============================================================
   Components — Buttons, Cards, Inputs, Tables, Modals, Tags
   ============================================================ */

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    user-select: none;
}

.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

.btn-primary {
    background: var(--color-blue);
    color: #fff;
}
.btn-primary:hover { opacity: 0.9; }

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1.5px solid var(--color-border);
}
.btn-secondary:hover { background: var(--color-surface-hover); }

.btn-danger {
    background: var(--color-red);
    color: #fff;
}
.btn-danger:hover { opacity: 0.9; }

.btn-success {
    background: var(--color-green);
    color: #fff;
}
.btn-success:hover { opacity: 0.9; }

.btn-ghost {
    background: transparent;
    color: var(--color-blue);
    padding: 8px 12px;
}
.btn-ghost:hover { background: rgba(0, 122, 255, 0.08); }

.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-icon { padding: 8px; width: 36px; height: 36px; }

/* --- Inputs --- */
.input {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-family: var(--font-family);
    background: var(--color-bg);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input:focus {
    outline: none;
    border-color: var(--color-blue);
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.12);
}

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

.input-group {
    margin-bottom: 16px;
}

.input-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
}

.textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-family: var(--font-family);
    background: var(--color-bg);
    color: var(--color-text);
    resize: vertical;
    min-height: 100px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.textarea:focus {
    outline: none;
    border-color: var(--color-blue);
    box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.12);
}

.select {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 15px;
    font-family: var(--font-family);
    background: var(--color-bg);
    color: var(--color-text);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238E8E93' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.select:focus {
    outline: none;
    border-color: var(--color-blue);
}

/* --- Cards --- */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: 24px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.card-title {
    font-size: 17px;
    font-weight: 700;
}

/* --- Tables --- */
.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    background: var(--color-surface);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-muted);
    border-bottom: 1px solid var(--color-border-light);
    white-space: nowrap;
}

.table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border-light);
    color: var(--color-text);
}

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

.table tr:hover td {
    background: var(--color-surface-hover);
}

/* --- Tags / Badges --- */
.tag {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.tag-blue { background: rgba(0, 122, 255, 0.12); color: var(--color-blue); }
.tag-green { background: rgba(52, 199, 89, 0.12); color: var(--color-green); }
.tag-red { background: rgba(255, 45, 85, 0.12); color: var(--color-red); }
.tag-orange { background: rgba(255, 149, 0, 0.12); color: var(--color-orange); }
.tag-violet { background: rgba(175, 82, 222, 0.12); color: var(--color-violet); }
.tag-muted { background: var(--color-surface-hover); color: var(--color-muted); }

/* Channel tags */
.tag-sms { background: rgba(0, 122, 255, 0.12); color: var(--color-blue); }
.tag-rcs { background: rgba(175, 82, 222, 0.12); color: var(--color-violet); }
.tag-whatsapp { background: rgba(52, 199, 89, 0.12); color: var(--color-green); }
.tag-email { background: rgba(255, 149, 0, 0.12); color: var(--color-orange); }
.tag-voice { background: rgba(90, 200, 250, 0.12); color: var(--color-teal); }

/* --- Modal --- */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-overlay.visible {
    display: flex;
    animation: fadeIn 0.2s ease;
}

.modal {
    background: var(--color-bg);
    border-radius: var(--radius-2xl);
    padding: 32px;
    max-width: 520px;
    width: calc(100% - 40px);
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: slideInUp 0.3s ease;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.modal-title {
    font-size: 20px;
    font-weight: 700;
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: var(--color-surface);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--color-muted);
    transition: background var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-surface-hover);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 24px;
}

/* --- Toast / Notifications --- */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 14px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    color: #fff;
    box-shadow: var(--shadow-lg);
    animation: slideInUp 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 400px;
}

.toast-success { background: var(--color-green); }
.toast-error { background: var(--color-red); }
.toast-warning { background: var(--color-orange); }
.toast-info { background: var(--color-blue); }

/* --- Pagination --- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 24px;
}

.pagination-btn {
    padding: 8px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pagination-btn:hover {
    background: var(--color-surface);
}

.pagination-btn.active {
    background: var(--color-blue);
    color: #fff;
    border-color: var(--color-blue);
}

.pagination-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* --- Empty State --- */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-secondary);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

/* --- Search Bar --- */
.search-bar {
    position: relative;
    max-width: 320px;
}

.search-bar input {
    width: 100%;
    padding: 10px 14px 10px 40px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-family: var(--font-family);
    background: var(--color-surface);
    color: var(--color-text);
    transition: border-color var(--transition-fast);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--color-blue);
}

.search-bar::before {
    content: '🔍';
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    opacity: 0.5;
}

/* --- Progress Bar --- */
.progress-bar {
    height: 6px;
    background: var(--color-surface-hover);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    border-radius: 3px;
    background: var(--color-blue);
    transition: width 0.5s ease;
}

/* --- Tabs --- */
.tabs {
    display: flex;
    gap: 4px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 4px;
    margin-bottom: 24px;
}

.tab {
    flex: 1;
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-text-secondary);
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
}

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

.tab.active {
    background: var(--color-bg);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
}