/* ═══════════════════════════════════════════════════════════════
   IMPORT PAGE — Enterprise Layout
   Namespace : imp-*
   Strategy  : CSS custom properties for theming, BEM-style classes
               for components. No inline styles in markup.
   Last edit : Step 6 layout rebuild + button / color corrections
═══════════════════════════════════════════════════════════════ */

/* ── Design tokens ───────────────────────────────────────────── */
:root {
    --imp-accent: #2563eb;
    --imp-accent-hover: #1d4ed8;
    --imp-accent-ring: rgba(37, 99, 235, 0.12);
    --imp-surface: #ffffff;
    --imp-surface-alt: #f9fafb;
    --imp-border: #e5e7eb;
    --imp-border-input: #d1d5db;
    --imp-text-primary: #111827;
    --imp-text-secondary: #374151;
    --imp-text-muted: #6b7280;
    --imp-radius-sm: 6px;
    --imp-radius-md: 8px;
    --imp-radius-lg: 10px;
    --imp-radius-xl: 12px;
    --imp-shadow-btn: 0 1px 2px rgba(0, 0, 0, 0.06);
    --imp-shadow-modal: 0 20px 60px rgba(0, 0, 0, 0.18);
    /* Warning palette — yellow-50 → yellow-200 scale */
    --imp-warn-bg: #fefce8;
    --imp-warn-bg-inner: #fef9c3;
    --imp-warn-border: #fde68a;
    --imp-warn-text: #713f12;
    --imp-warn-text-sub: #854d0e;
    --imp-warn-badge: #f59e0b;
}


/* ═══════════════════════════════════════════════════════════════
   PAGE SHELL
═══════════════════════════════════════════════════════════════ */

.imp-page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}


/* ═══════════════════════════════════════════════════════════════
   HEADER
═══════════════════════════════════════════════════════════════ */

.imp-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--imp-border);
}

.imp-header__left {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.imp-title {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--imp-text-primary);
    margin: 0;
    letter-spacing: -0.02em;
}

    .imp-title svg {
        color: var(--imp-accent);
        flex-shrink: 0;
    }

.imp-subtitle {
    font-size: 0.8125rem;
    color: var(--imp-text-muted);
    margin: 0;
    padding-left: 1.625rem; /* aligns under title text, past the icon */
}


/* ═══════════════════════════════════════════════════════════════
   ALERT SYSTEM
   Four semantic variants: success / error / warning / info
═══════════════════════════════════════════════════════════════ */

.imp-alerts {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.imp-alert {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    border-radius: var(--imp-radius-md);
    font-size: 0.8125rem;
    line-height: 1.5;
    border: 1px solid transparent;
}

.imp-alert--success {
    background: #f0fdf4;
    border-color: #bbf7d0;
    color: #166534;
}

.imp-alert--error {
    background: #fef2f2;
    border-color: #fecaca;
    color: #991b1b;
}

.imp-alert--warning {
    background: #fffbeb;
    border-color: var(--imp-warn-border);
    color: #92400e;
}

.imp-alert--info {
    background: #eff6ff;
    border-color: #bfdbfe;
    color: #1e40af;
}

.imp-alert__icon {
    flex-shrink: 0;
    margin-top: 1px;
}

.imp-alert__body {
    flex: 1;
    min-width: 0;
}

.imp-alert__close {
    flex-shrink: 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.125rem;
    line-height: 1;
    opacity: 0.5;
    padding: 0;
    color: inherit;
    transition: opacity 0.15s;
}

    .imp-alert__close:hover {
        opacity: 1;
    }


/* ═══════════════════════════════════════════════════════════════
   DUPLICATE PANEL
   Shown in place of the main form when a duplicate is detected.
   Uses the yellow-50/100/200 warning palette.
═══════════════════════════════════════════════════════════════ */

.imp-dup {
    background: var(--imp-warn-bg);
    border: 1px solid var(--imp-warn-border);
    border-radius: var(--imp-radius-lg);
    padding: 1.75rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* Header row: icon + title + badge */
.imp-dup__header {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    flex-wrap: wrap;
}

.imp-dup__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--imp-warn-text);
    margin: 0;
}

.imp-dup__badge {
    font-size: 0.6875rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 999px;
    background: var(--imp-warn-badge);
    color: #fff;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* Description text */
.imp-dup__message {
    font-size: 0.875rem;
    color: var(--imp-warn-text-sub);
    margin: 0;
    line-height: 1.6;
}

/* Key-value detail card */
.imp-dup__detail {
    background: var(--imp-warn-bg-inner);
    border: 1px solid var(--imp-warn-border);
    border-radius: var(--imp-radius-md);
    padding: 1rem 1.25rem;
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 0.625rem 1rem;
    font-size: 0.8125rem;
}

.imp-dup__detail-label {
    font-weight: 600;
    color: var(--imp-warn-text);
}

.imp-dup__detail-value {
    color: var(--imp-warn-text-sub);
}

    .imp-dup__detail-value a {
        color: var(--imp-accent);
        text-decoration: underline;
        text-underline-offset: 2px;
    }

        .imp-dup__detail-value a:hover {
            color: var(--imp-accent-hover);
        }

/* Reason selector */
.imp-dup__reason {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.imp-dup__reason-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--imp-warn-text);
}

.imp-dup__reason-required {
    color: #dc2626;
}

/* "Other" textarea — hidden until "Other" is selected */
.imp-dup__reason-other {
    margin-top: 0.375rem;
    display: none;
    flex-direction: column;
    gap: 0.375rem;
}

    .imp-dup__reason-other.is-visible {
        display: flex;
    }

/* Action buttons row */
.imp-dup__actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    padding-top: 0.75rem;
    border-top: 1px solid var(--imp-warn-border);
}

.imp-dup__actions--right {
    margin-left: auto;
}


/* ═══════════════════════════════════════════════════════════════
   CSV TYPE DETECTION ALERT
   Shown when an uploaded file looks like an Order Guide.
═══════════════════════════════════════════════════════════════ */

.imp-detect {
    display: none;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    border-radius: var(--imp-radius-md);
    background: #fffbeb;
    border: 1px solid var(--imp-warn-border);
    color: #92400e;
    font-size: 0.8125rem;
}

    .imp-detect.is-visible {
        display: flex;
    }

.imp-detect__body {
    flex: 1;
}


/* ═══════════════════════════════════════════════════════════════
   TWO-COLUMN LAYOUT
   Left: form card  |  Right: sticky info sidebar (300px)
═══════════════════════════════════════════════════════════════ */

.imp-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 1.5rem;
    align-items: start;
}

    /* Server-rendered hidden attribute overrides display:grid */
    .imp-layout[hidden] {
        display: none !important;
    }


/* ═══════════════════════════════════════════════════════════════
   FORM CARD
═══════════════════════════════════════════════════════════════ */

.imp-card {
    background: var(--imp-surface);
    border: 1px solid var(--imp-border);
    border-radius: var(--imp-radius-lg);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ── Grid rows ───────────────────────────────────────────────── */

.imp-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.imp-row--full {
    grid-template-columns: 1fr;
}

/* ── Individual field ────────────────────────────────────────── */

.imp-field {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.imp-label {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--imp-text-secondary);
}

    .imp-label svg {
        color: var(--imp-text-muted);
    }

.imp-required {
    color: #dc2626;
    font-weight: 700;
}

/* ── Inputs ──────────────────────────────────────────────────── */

.imp-input,
.imp-select,
.imp-textarea {
    border: 1px solid var(--imp-border-input);
    border-radius: var(--imp-radius-sm);
    font-size: 0.875rem;
    color: var(--imp-text-primary);
    background: var(--imp-surface);
    transition: border-color 0.15s, box-shadow 0.15s;
    width: 100%;
    box-sizing: border-box;
    font-family: inherit;
}

.imp-input,
.imp-select {
    height: 38px;
    padding: 0 0.75rem;
}

.imp-textarea {
    padding: 0.625rem 0.75rem;
    resize: vertical;
}

    .imp-input:focus,
    .imp-select:focus,
    .imp-textarea:focus {
        outline: none;
        border-color: var(--imp-accent);
        box-shadow: 0 0 0 3px var(--imp-accent-ring);
    }

.imp-select {
    appearance: auto;
}

    .imp-select:disabled {
        background: var(--imp-surface-alt);
        color: var(--imp-text-muted);
        cursor: not-allowed;
    }

/* Locked / read-only account display */
.imp-input--locked {
    height: 38px;
    padding: 0 0.75rem;
    background: var(--imp-surface-alt);
    color: var(--imp-text-muted);
    border-color: var(--imp-border);
    border-radius: var(--imp-radius-sm);
    cursor: default;
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    box-sizing: border-box;
}

/* Vendor field: select + add button side by side */
.imp-field-group {
    display: flex;
    gap: 0.5rem;
}

    .imp-field-group .imp-select {
        flex: 1;
    }

/* Inline validation message */
.imp-error {
    font-size: 0.75rem;
    color: #dc2626;
    margin-top: 2px;
}


/* ═══════════════════════════════════════════════════════════════
   FILE UPLOAD AREA
═══════════════════════════════════════════════════════════════ */

.imp-upload-section {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.imp-upload-area {
    border: 2px dashed var(--imp-border-input);
    border-radius: var(--imp-radius-md);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: border-color 0.15s, background 0.15s;
    cursor: pointer;
    position: relative;
}

    .imp-upload-area:hover,
    .imp-upload-area.imp-drag-over {
        border-color: var(--imp-accent);
        background: rgba(37, 99, 235, 0.03);
    }

    .imp-upload-area.is-disabled {
        opacity: 0.5;
        pointer-events: none;
    }

.imp-upload-icon {
    color: var(--imp-text-muted);
    margin-bottom: 0.75rem;
}

.imp-upload-text {
    font-size: 0.875rem;
    color: var(--imp-text-secondary);
    margin-bottom: 0.25rem;
}

.imp-upload-hint {
    font-size: 0.75rem;
    color: var(--imp-text-muted);
    margin-bottom: 1rem;
}

/* Invisible full-area click target */
.imp-file-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}

/* Upload content — hidden after file is selected */
.imp-upload-content {
    position: relative;
}

    .imp-upload-content.is-hidden {
        display: none;
    }

/* File preview row — shown after selection */
.imp-file-preview {
    display: none;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--imp-surface-alt);
    border-radius: var(--imp-radius-sm);
    border: 1px solid var(--imp-border);
}

    .imp-file-preview.is-visible {
        display: flex;
    }

.imp-file-icon {
    color: var(--imp-accent);
    flex-shrink: 0;
}

.imp-file-details {
    flex: 1;
    min-width: 0;
    text-align: left;
}

.imp-file-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--imp-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.imp-file-size {
    font-size: 0.75rem;
    color: var(--imp-text-muted);
}

.imp-file-remove {
    flex-shrink: 0;
    background: none;
    border: 1px solid var(--imp-border);
    border-radius: 4px;
    padding: 4px 6px;
    cursor: pointer;
    color: var(--imp-text-muted);
    transition: color 0.15s, border-color 0.15s;
    display: flex;
    align-items: center;
}

    .imp-file-remove:hover {
        color: #dc2626;
        border-color: #fecaca;
    }


/* ═══════════════════════════════════════════════════════════════
   FORM ACTIONS
═══════════════════════════════════════════════════════════════ */

.imp-form-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--imp-border);
}


/* ═══════════════════════════════════════════════════════════════
   BUTTONS
   Base .imp-btn + semantic modifier variants.
   All variants explicitly declare background, color, border.
═══════════════════════════════════════════════════════════════ */

.imp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.375rem;
    padding: 0 1rem;
    height: 36px;
    border-radius: var(--imp-radius-sm);
    border: 1px solid transparent;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    line-height: 1;
    box-shadow: var(--imp-shadow-btn);
    transition: background 0.15s, border-color 0.15s, box-shadow 0.15s, opacity 0.15s;
}

    .imp-btn:disabled {
        opacity: 0.45;
        cursor: not-allowed;
        pointer-events: none;
    }

/* Primary — solid blue, used for the main import action */
.imp-btn--primary {
    background: var(--imp-accent);
    color: #fff;
    border-color: var(--imp-accent);
}

    .imp-btn--primary:hover {
        background: var(--imp-accent-hover);
        border-color: var(--imp-accent-hover);
        box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
    }

/* Secondary — outlined neutral, used for Cancel / Back / View */
.imp-btn--secondary {
    background: var(--imp-surface);
    color: var(--imp-text-secondary);
    border-color: var(--imp-border-input);
}

    .imp-btn--secondary:hover {
        background: var(--imp-surface-alt);
        border-color: #9ca3af;
        color: var(--imp-text-primary);
    }

/* Warning — amber fill, used for "Import Anyway" on duplicate panel */
.imp-btn--warning {
    background: #f59e0b;
    color: #fff;
    border-color: #f59e0b;
}

    .imp-btn--warning:hover {
        background: #d97706;
        border-color: #d97706;
        box-shadow: 0 2px 6px rgba(245, 158, 11, 0.3);
    }

/* Icon-only — square ghost button, used for the Add Vendor (+) button */
.imp-btn--icon {
    padding: 0 0.625rem;
    background: var(--imp-surface);
    color: var(--imp-text-muted);
    border-color: var(--imp-border-input);
    box-shadow: var(--imp-shadow-btn);
}

    .imp-btn--icon:hover {
        background: rgba(37, 99, 235, 0.05);
        color: var(--imp-accent);
        border-color: var(--imp-accent);
    }


/* ═══════════════════════════════════════════════════════════════
   INFO SIDEBAR
═══════════════════════════════════════════════════════════════ */

.imp-info {
    background: var(--imp-surface-alt);
    border: 1px solid var(--imp-border);
    border-radius: var(--imp-radius-lg);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    position: sticky;
    top: 1rem;
}

.imp-info__heading {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--imp-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin: 0;
}

    .imp-info__heading svg {
        color: var(--imp-accent);
    }

/* Numbered step list using CSS counters — no <ol> marker needed */
.imp-info__steps {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
    counter-reset: steps;
}

    .imp-info__steps li {
        counter-increment: steps;
        display: flex;
        align-items: flex-start;
        gap: 0.625rem;
        font-size: 0.8125rem;
        color: var(--imp-text-secondary);
        line-height: 1.5;
    }

        .imp-info__steps li::before {
            content: counter(steps);
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--imp-accent);
            color: #fff;
            font-size: 0.6875rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 1px;
        }

.imp-info__divider {
    border: none;
    border-top: 1px solid var(--imp-border);
    margin: 0;
}

.imp-info__tip {
    font-size: 0.8125rem;
    color: #92400e;
    background: #fffbeb;
    border: 1px solid var(--imp-warn-border);
    border-radius: var(--imp-radius-sm);
    padding: 0.75rem;
    line-height: 1.5;
}


/* ═══════════════════════════════════════════════════════════════
   PROCESSING MODAL
   Shown on form submit. CSS spinner — no JS animation needed.
═══════════════════════════════════════════════════════════════ */

.imp-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
}

    .imp-modal.is-visible {
        display: flex;
    }

.imp-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(2px);
}

.imp-modal__content {
    position: relative;
    z-index: 1;
    background-color :transparent; /* was transparent — modal was invisible */
    border-radius: var(--imp-radius-xl);
    padding: 2.5rem 2rem;
    text-align: center;
    min-width: 280px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.imp-modal__spinner {
    width: 44px;
    height: 44px;
    border: 3px solid var(--imp-border);
    border-top-color: var(--imp-accent);
    border-radius: 50%;
    animation: imp-spin 0.7s linear infinite;
}

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

.imp-modal__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--imp-text-primary);
    margin: 0;
}

.imp-modal__desc {
    font-size: 0.8125rem;
    color: var(--imp-text-muted);
    margin: 0;
}


/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
    .imp-layout {
        grid-template-columns: 1fr;
    }

    .imp-info {
        position: static;
        order: 2;
    }

    .imp-row {
        grid-template-columns: 1fr;
    }

    .imp-dup {
        padding: 1.25rem 1.25rem;
    }
}