/* ============================================
   JobExpress - Component Styles
   Buttons, Cards, Inputs, Modals, Alerts
   ============================================ */

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 12px 28px;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    letter-spacing: 0.01em;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    user-select: none;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.08);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn:hover::before {
    opacity: 1;
}

.btn:active {
    transform: scale(0.96);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn .icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* Primary Button */
.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    box-shadow: none;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-light);
    box-shadow: var(--shadow-orange-lg);
    transform: translateY(-1px);
}

/* Secondary Button */
.btn-secondary {
    background-color: var(--color-primary-subtle);
    color: var(--color-primary-dark);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-primary-bg);
}

/* Ghost Button */
.btn-ghost {
    background-color: transparent;
    color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--color-border-light);
}

/* Dark Button */
.btn-dark {
    background-color: var(--color-navy);
    color: var(--color-text-inverse);
    box-shadow: var(--shadow-navy);
}

.btn-dark:hover:not(:disabled) {
    background-color: var(--color-navy-light);
    box-shadow: none;
    transform: translateY(-1px);
}

/* Danger Button */
.btn-danger {
    background-color: var(--color-error);
    color: var(--color-text-inverse);
}

.btn-danger:hover:not(:disabled) {
    background-color: #C82333;
}

/* Success Button */
.btn-success {
    background-color: var(--color-success);
    color: var(--color-text-inverse);
}

/* White Button */
.btn-white {
    background-color: white;
    color: var(--color-text);
}

.btn-white:hover:not(:disabled) {
    background-color: var(--color-bg);
}

/* Button Sizes */
.btn-sm {
    padding: 8px 18px;
    font-size: var(--font-size-xs);
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 16px 36px;
    font-size: var(--font-size-base);
    border-radius: var(--radius-lg);
    letter-spacing: 0.01em;
}

.btn-lg svg {
    transition: transform var(--transition-fast);
}

.btn-lg:hover svg {
    transform: translateX(3px);
}

.btn-xl {
    padding: 20px 48px;
    font-size: var(--font-size-md);
    border-radius: var(--radius-lg);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-md);
}

.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
}

.btn-full {
    width: 100%;
}

/* Loading state */
.btn.loading {
    color: transparent;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    color: var(--color-text-inverse);
}

/* ---------- Input Fields ---------- */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    letter-spacing: 0.01em;
}

.form-label .required {
    color: var(--color-primary);
    margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-regular);
    color: var(--color-text);
    background-color: var(--color-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-fast);
    appearance: none;
    outline: none;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--color-text-muted);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(252,149,13,0.12);
    background-color: var(--color-surface);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-text-muted);
    font-weight: var(--font-weight-regular);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(220,53,69,0.1);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
    line-height: var(--line-height-relaxed);
}

.form-select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B6B6B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

.form-hint {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.form-error {
    font-size: var(--font-size-xs);
    color: var(--color-error);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

/* Input with icon */
.input-wrapper {
    position: relative;
}

.input-wrapper .input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--color-text-muted);
    pointer-events: none;
}

.input-wrapper .form-input {
    padding-left: 42px;
}

.input-wrapper .input-action {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.input-wrapper .input-action:hover {
    color: var(--color-text);
}

/* Toggle / Switch */
.toggle {
    position: relative;
    width: 44px;
    height: 24px;
    cursor: pointer;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.toggle-track {
    position: absolute;
    inset: 0;
    background-color: var(--color-border);
    border-radius: var(--radius-full);
    transition: background-color var(--transition-fast);
}

.toggle input:checked + .toggle-track {
    background-color: var(--color-primary);
}

.toggle-thumb {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background-color: white;
    border-radius: 50%;
    transition: transform var(--transition-fast);
    box-shadow: var(--shadow-xs);
}

.toggle input:checked ~ .toggle-thumb {
    transform: translateX(20px);
}

/* ---------- Cards ---------- */
.card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--transition-base), transform var(--transition-spring);
    border: 1px solid var(--color-border-light);
}

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

.card-interactive:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-border);
}

.card-body {
    padding: var(--space-6);
}

.card-header {
    padding: var(--space-6);
    padding-bottom: 0;
}

.card-footer {
    padding: var(--space-6);
    padding-top: 0;
}

.card-divider {
    height: 1px;
    background-color: var(--color-divider);
    margin: 0 var(--space-6);
}

/* Orange accent card */
.card-orange {
    background-color: var(--color-primary);
    color: white;
    border: none;
    box-shadow: var(--shadow-orange);
}

/* Navy accent card */
.card-navy {
    background-color: var(--color-navy);
    color: white;
    border: none;
    box-shadow: var(--shadow-navy);
}

.card-navy p,
.card-navy h1, .card-navy h2, .card-navy h3,
.card-navy h4, .card-navy h5, .card-navy h6 {
    color: white;
}

.card-navy small {
    color: rgba(255,255,255,0.7);
}

.card-orange p,
.card-orange h1, .card-orange h2, .card-orange h3,
.card-orange h4, .card-orange h5, .card-orange h6,
.card-orange small {
    color: white;
}

.card-orange small {
    opacity: 0.8;
}

/* ---------- Badges ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 4px 10px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    line-height: 1.2;
}

.badge-primary {
    background-color: var(--color-primary-subtle);
    color: var(--color-primary-dark);
}

.badge-success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
}

.badge-error {
    background-color: var(--color-error-bg);
    color: var(--color-error);
}

.badge-neutral {
    background-color: var(--color-border-light);
    color: var(--color-text-muted);
}

/* ---------- Modals ---------- */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background-color: rgba(45,48,71,0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    transition: opacity var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
}

.modal-backdrop.active {
    opacity: 1;
}

.modal {
    background-color: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: none;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    z-index: var(--z-modal);
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-spring);
    border: 1px solid var(--color-border-light);
}

.modal-backdrop.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6);
    padding-bottom: var(--space-4);
}

.modal-header h3 {
    font-size: var(--font-size-lg);
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--color-text-muted);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--color-border-light);
    color: var(--color-text);
}

.modal-body {
    padding: 0 var(--space-6) var(--space-6);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-divider);
}

/* ---------- Alerts / Toasts ---------- */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-base);
}

.alert-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 1px;
}

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

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

.alert-warning {
    background-color: var(--color-warning-bg);
    color: #856404;
}

.alert-info {
    background-color: var(--color-info-bg);
    color: var(--color-info);
}

/* Toast notifications */
.toast-container {
    position: fixed;
    top: var(--space-6);
    right: var(--space-6);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    pointer-events: all;
    animation: slideInRight 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    min-width: 300px;
    border: 1px solid var(--color-border-light);
}

.toast.removing {
    animation: fadeOut 0.2s ease forwards;
}

@keyframes fadeOut {
    to {
        opacity: 0;
        transform: translateX(24px);
    }
}

/* ---------- Tabs ---------- */
.tabs {
    display: flex;
    gap: var(--space-1);
    background-color: var(--color-border-light);
    padding: 4px;
    border-radius: var(--radius-md);
}

.tab {
    flex: 1;
    padding: 10px 20px;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-muted);
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
}

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

.tab.active {
    background-color: var(--color-surface);
    color: var(--color-primary-dark);
    box-shadow: var(--shadow-sm);
    font-weight: var(--font-weight-semibold);
}

/* ---------- Progress Bar ---------- */
.progress {
    width: 100%;
    height: 6px;
    background-color: var(--color-border-light);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.15);
    background-size: 200% 100%;
    animation: shimmer 2s ease-in-out infinite;
}

/* ---------- Avatar ---------- */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    flex-shrink: 0;
    box-shadow: none;
}

.avatar-sm { width: 32px; height: 32px; font-size: var(--font-size-xs); }
.avatar-lg { width: 56px; height: 56px; font-size: var(--font-size-lg); }

/* ---------- Chip ---------- */
.chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 6px 14px;
    background-color: var(--color-border-light);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

.chip-remove {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--color-text-muted);
    padding: 0;
    border-radius: 50%;
    transition: background-color var(--transition-fast);
}

.chip-remove:hover {
    background-color: var(--color-border);
}

/* ---------- Divider ---------- */
.divider {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--color-divider);
}

/* ---------- Tooltip ---------- */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 12px;
    background-color: var(--color-text);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
    z-index: var(--z-tooltip);
}

[data-tooltip]:hover::after {
    opacity: 1;
}

/* ---------- Empty State ---------- */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-16) var(--space-6);
    text-align: center;
}

.empty-state-icon {
    width: 64px;
    height: 64px;
    color: var(--color-border);
    margin-bottom: var(--space-6);
}

.empty-state h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-2);
}

.empty-state p {
    color: var(--color-text-muted);
    max-width: 360px;
    margin-bottom: var(--space-6);
}

/* ---------- Loading Spinner ---------- */
.spinner {
    width: 24px;
    height: 24px;
    border: 2.5px solid rgba(252,149,13,0.15);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.spinner-sm { width: 16px; height: 16px; border-width: 2px; }
.spinner-lg { width: 40px; height: 40px; border-width: 3px; }

.loading-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(255,255,255,0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: var(--space-4);
    border-radius: inherit;
    z-index: 10;
}

.loading-text {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

/* ---------- File Upload ---------- */
.file-upload {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-10) var(--space-6);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
    position: relative;
}

.file-upload:hover,
.file-upload.dragover {
    border-color: var(--color-primary);
    background-color: var(--color-primary-bg);
    transform: scale(1.01);
    box-shadow: var(--shadow-glow);
}

.file-upload input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.file-upload-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    margin-bottom: var(--space-4);
}

.file-upload-text {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-1);
}

.file-upload-hint {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}