/* ==========================================================================
   UDYOGPORTAL PLATFORM COMPONENT LIBRARY
   Design Tokens & CSS definitions for standard framework components.
   Built strictly using active THEME 12 variables (light theme locked).
   ========================================================================== */

/* ─── 1. Modals & Dialogs ────────────────────────────────────────────────── */
.platform-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-20);
    z-index: 99999;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--motion-normal);
}

.platform-modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.platform-modal {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: var(--viewport-width);
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--elevation-4);
    transform: scale(0.95);
    opacity: 0;
    transition: transform var(--motion-normal), opacity var(--motion-normal);
    overflow: hidden;
    border: 1px solid var(--border);
}

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

/* Modal Structure: Pinned Header and Footer, Scrollable Body */
.platform-modal-header {
    padding: var(--space-20) var(--space-24) var(--space-16);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: var(--space-12);
    background-color: var(--white);
    flex-shrink: 0;
}

.platform-modal-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.platform-modal-title {
    font-family: var(--font-primary);
    font-size: var(--title);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.platform-modal-body {
    padding: var(--space-20) var(--space-24);
    overflow-y: auto;
    flex-grow: 1;
    -webkit-overflow-scrolling: touch;
    font-family: var(--font-primary);
    font-size: var(--body-md);
    color: var(--text-secondary);
    line-height: 1.6;
}

.platform-modal-footer {
    padding: var(--space-16) var(--space-24) var(--space-20);
    border-top: 1px solid var(--border);
    display: flex;
    gap: var(--space-10);
    background-color: var(--background);
    flex-shrink: 0;
}

/* ─── 2. Buttons ────────────────────────────────────────────────────────── */
.platform-btn-primary,
.platform-btn-secondary,
.platform-btn-destructive {
    font-family: var(--font-primary);
    font-size: var(--body-md);
    font-weight: 600;
    height: 48px;
    padding: 0 var(--space-24);
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    cursor: pointer;
    border: none;
    outline: none;
    transition: all var(--motion-fast);
    flex: 1;
    text-decoration: none;
    box-sizing: border-box;
    text-align: center;
}

.platform-btn-primary {
    background-color: var(--primary);
    color: var(--white);
    box-shadow: var(--elevation-1);
}

.platform-btn-primary:active {
    background-color: var(--primary-dark);
    transform: scale(0.98);
}

.platform-btn-secondary {
    background-color: var(--white);
    color: var(--text-primary);
    border: 1.5px solid var(--border);
}

.platform-btn-secondary:active {
    background-color: var(--background);
    transform: scale(0.98);
}

.platform-btn-destructive {
    background-color: var(--error);
    color: var(--white);
    box-shadow: var(--elevation-1);
}

.platform-btn-destructive:active {
    background-color: #BE123C;
    transform: scale(0.98);
}

/* ─── 3. Platform Alert Types ────────────────────────────────────────────── */
.platform-alert-modal .platform-modal-icon--info {
    background-color: var(--tertiary-light);
    color: var(--tertiary);
}

.platform-alert-modal .platform-modal-icon--success {
    background-color: var(--success-light);
    color: var(--success);
}

.platform-alert-modal .platform-modal-icon--error {
    background-color: var(--error-light);
    color: var(--error);
}

.platform-alert-modal .platform-modal-icon--warning {
    background-color: var(--warning-light);
    color: var(--warning);
}

/* ─── 4. Tables ──────────────────────────────────────────────────────────── */
.platform-table-container {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background-color: var(--white);
    box-shadow: var(--elevation-1);
    margin-bottom: var(--space-20);
}

.platform-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-primary);
    font-size: var(--body-md);
    text-align: left;
}

.platform-table th {
    background-color: var(--background);
    color: var(--text-secondary);
    font-weight: 600;
    padding: var(--space-12) var(--space-16);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.platform-table td {
    padding: var(--space-16);
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
    vertical-align: middle;
}

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

.platform-table tr:active {
    background-color: var(--navy-light);
}

/* ─── 5. Form Elements ───────────────────────────────────────────────────── */
.platform-form-group {
    margin-bottom: var(--space-20);
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.platform-form-label {
    font-family: var(--font-primary);
    font-size: var(--body-md);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.platform-form-input {
    font-family: var(--font-primary);
    font-size: var(--body-lg);
    height: 48px;
    padding: 0 var(--space-16);
    border-radius: var(--radius-md);
    border: 1.5px solid var(--border);
    background-color: var(--white);
    color: var(--text-primary);
    outline: none;
    transition: all var(--motion-fast);
    width: 100%;
    box-sizing: border-box;
}

.platform-form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.platform-form-error {
    font-family: var(--font-primary);
    font-size: var(--caption);
    color: var(--error);
    display: none;
    align-items: center;
    gap: var(--space-4);
    margin-top: var(--space-4);
}

.platform-form-group.has-error .platform-form-input {
    border-color: var(--error);
}

.platform-form-group.has-error .platform-form-input:focus {
    box-shadow: 0 0 0 3px var(--error-light);
}

.platform-form-group.has-error .platform-form-error {
    display: flex;
}

/* ─── 6. States (Empty, Loading, Error) ──────────────────────────────────── */

/* Empty State */
.platform-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-48) var(--space-24);
    font-family: var(--font-primary);
}

.platform-empty-icon {
    font-size: 48px;
    color: var(--text-muted);
    margin-bottom: var(--space-16);
}

.platform-empty-title {
    font-size: var(--title);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--space-8) 0;
}

.platform-empty-description {
    font-size: var(--body-md);
    color: var(--text-secondary);
    max-width: 280px;
    margin: 0 0 var(--space-24) 0;
    line-height: 1.5;
}

/* Error State */
.platform-error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-48) var(--space-24);
    font-family: var(--font-primary);
}

.platform-error-icon {
    font-size: 48px;
    color: var(--error);
    margin-bottom: var(--space-16);
}

.platform-error-title {
    font-size: var(--title);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--space-8) 0;
}

.platform-error-description {
    font-size: var(--body-md);
    color: var(--text-secondary);
    max-width: 280px;
    margin: 0 0 var(--space-24) 0;
    line-height: 1.5;
}

/* Loading Skeleton */
.platform-loading-skeleton {
    width: 100%;
    height: 16px;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading-skeleton-animation 1.5s infinite;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-8);
}

@keyframes loading-skeleton-animation {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ─── 7. File Upload ─────────────────────────────────────────────────────── */
.platform-file-upload {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-32) var(--space-16);
    text-align: center;
    background-color: var(--background);
    cursor: pointer;
    transition: all var(--motion-normal);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-10);
}

.platform-file-upload:hover,
.platform-file-upload.dragover {
    border-color: var(--primary);
    background-color: var(--primary-light);
}

.platform-file-icon {
    font-size: 36px;
    color: var(--primary);
}

.platform-file-text {
    font-family: var(--font-primary);
    font-size: var(--body-md);
    font-weight: 600;
    color: var(--text-primary);
}

.platform-file-subtext {
    font-family: var(--font-primary);
    font-size: var(--caption);
    color: var(--text-muted);
}