/* ============================================================
   Rubica Merge Tool — Stylesheet
   Prefix: rmt-  (to avoid conflicts with theme styles)
   ============================================================ */

.rubica-merge-wrap {
	--rmt-primary:       #6B4FA0;
	--rmt-primary-dark:  #54377F;
	--rmt-primary-light: #9B79D0;
	--rmt-primary-bg:    #F3EFFC;
	--rmt-tab-inactive:  #C4B8DC;
	--rmt-surface:       #FFFFFF;
	--rmt-border:        #D6CCE8;
	--rmt-text:          #2D2D2D;
	--rmt-text-muted:    #7A6E8A;
	--rmt-danger:        #C0392B;
	--rmt-success:       #27AE60;
	--rmt-warning:       #E67E22;
	--rmt-radius-pill:   999px;
	--rmt-radius-card:   14px;
	--rmt-shadow:        0 2px 12px rgba(107,79,160,0.12);
	--rmt-circle:        30px;

	font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
	background: var(--rmt-primary-bg);
	border-radius: var(--rmt-radius-card);
	overflow: hidden;
}

.rubica-merge-wrap *, .rubica-merge-wrap *::before, .rubica-merge-wrap *::after {
	box-sizing: border-box;
}

/* ── Verified banner ──────────────────────────────────────────────────────── */
.rmt-verified-banner {
	background: #EAFAF1;
	border: 1.5px solid var(--rmt-success);
	border-radius: var(--rmt-radius-card) var(--rmt-radius-card) 0 0;
	padding: 10px 20px;
	font-size: 14px;
	color: #1D6A3A;
	text-align: center;
}

/* ── Tab bar ──────────────────────────────────────────────────────────────── */
.rmt-tab-bar {
	display: flex;
	align-items: stretch;
	background: var(--rmt-primary-bg);
	border-bottom: 2px solid var(--rmt-border);
	flex-wrap: wrap;
	gap: 0;
}

.rmt-tab {
	padding: 12px 28px;
	font-size: 14px;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	border: none;
	cursor: pointer;
	border-radius: 10px 10px 0 0;
	transition: background 0.15s, color 0.15s;
	background: var(--rmt-tab-inactive);
	color: #fff;
	opacity: 0.75;
}

.rmt-tab.active { background: var(--rmt-primary); opacity: 1; }
.rmt-tab:not(.active):hover { opacity: 1; }

/* User status bar */
.rmt-user-status {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-left: auto;
	padding: 0 16px;
	font-size: 13px;
}

.rmt-user-badge {
	display: flex;
	align-items: center;
	gap: 6px;
	font-size: 12px;
	padding: 3px 10px;
	border-radius: var(--rmt-radius-pill);
}

.rmt-user-badge.verified   { background: #EAFAF1; color: #1D6A3A; border: 1px solid #A9DFBF; }
.rmt-user-badge.unverified { background: #FEF9E7; color: #9A5E0A; border: 1px solid #F9E79F; }

.rmt-logout-btn,
.rmt-auth-link {
	background: none;
	border: none;
	cursor: pointer;
	font-size: 12px;
	font-weight: 600;
	color: var(--rmt-primary);
	padding: 2px 0;
	text-decoration: underline;
	text-underline-offset: 2px;
}

.rmt-logout-btn:hover,
.rmt-auth-link:hover { color: var(--rmt-primary-dark); }

.rmt-divider { color: var(--rmt-border); }

/* ── Card ─────────────────────────────────────────────────────────────────── */
.rmt-card {
	background: var(--rmt-surface);
	padding: 28px 24px 28px;
}

/* ── Utility row ──────────────────────────────────────────────────────────── */
.rmt-utility-row {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 28px;
	flex-wrap: wrap;
	gap: 8px;
}

.rmt-field-info {
	display: flex;
	align-items: center;
	gap: 12px;
	flex-wrap: wrap;
}

.rmt-col-counter {
	font-size: 13px;
	font-weight: 600;
	color: var(--rmt-text-muted);
}

.rmt-unlock-hint {
	background: none;
	border: 1.5px solid var(--rmt-primary);
	border-radius: var(--rmt-radius-pill);
	color: var(--rmt-primary);
	font-size: 12px;
	font-weight: 600;
	padding: 4px 14px;
	cursor: pointer;
	transition: background 0.15s, color 0.15s;
}

.rmt-unlock-hint:hover { background: var(--rmt-primary); color: #fff; }

.rmt-utility-btns { display: flex; gap: 8px; }

.rmt-utility-btn {
	padding: 5px 14px;
	border-radius: var(--rmt-radius-pill);
	font-size: 12px;
	font-weight: 600;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	cursor: pointer;
	border: 1.5px solid var(--rmt-border);
	background: transparent;
	color: var(--rmt-text-muted);
	transition: border-color 0.15s, color 0.15s;
}

.rmt-utility-btn:hover        { border-color: var(--rmt-primary); color: var(--rmt-primary); }
.rmt-utility-btn.danger:hover { border-color: var(--rmt-danger);  color: var(--rmt-danger); }

/* ── Columns wrapper ──────────────────────────────────────────────────────── */
.rmt-columns-wrapper {
	display: flex;
	flex-direction: row;
	align-items: center;   /* vertically center the + buttons with the textareas */
	overflow-x: auto;
	padding-top: 20px;     /* room for the absolutely-positioned remove buttons */
	padding-bottom: 8px;
}

/* ── Column slot ──────────────────────────────────────────────────────────── */
.rmt-column-slot {
	display: flex;
	flex-direction: column;
	flex: 1 1 180px;
	min-width: 150px;
	max-width: 280px;
	position: relative;    /* anchor for remove button */
}

/* Header collapses to zero — only exists as a positioning layer */
.rmt-column-header {
	height: 0;
	overflow: visible;
	margin-bottom: 0;
}

.rmt-column-slot textarea {
	width: 100%;
	height: 220px;
	resize: vertical;
	border: 1.5px solid var(--rmt-border);
	border-radius: var(--rmt-radius-card);
	padding: 12px;
	font-size: 14px;
	font-family: inherit;
	color: var(--rmt-text);
	background: var(--rmt-surface);
	outline: none;
	transition: border-color 0.15s, box-shadow 0.15s;
	line-height: 1.5;
}

.rmt-column-slot textarea:focus {
	border-color: var(--rmt-primary);
	box-shadow: 0 0 0 3px rgba(107,79,160,0.12);
}

.rmt-column-slot textarea::placeholder { color: var(--rmt-text-muted); }

/* ── Circle buttons ───────────────────────────────────────────────────────── */
/* Use !important to override common theme resets that break button dimensions */
.rubica-merge-wrap .rmt-circle-btn {
	width: 30px !important;
	height: 30px !important;
	min-width: 30px !important;
	min-height: 30px !important;
	padding: 0 !important;
	margin: 0 !important;
	border-radius: 50% !important;
	border: 2.5px solid !important;
	background: var(--rmt-surface) !important;
	font-size: 18px !important;
	font-weight: 700 !important;
	line-height: 1 !important;
	cursor: pointer !important;
	display: flex !important;
	align-items: center !important;
	justify-content: center !important;
	flex-shrink: 0 !important;
	box-sizing: content-box !important;
	transition: background 0.15s, color 0.15s, transform 0.1s;
	user-select: none;
}

.rubica-merge-wrap .rmt-circle-btn:active { transform: scale(0.92); }

/* + button: centered vertically alongside the textarea */
.rmt-add-btn {
	border-color: var(--rmt-primary) !important;
	color: var(--rmt-primary) !important;
}

.rmt-add-btn:hover { background: var(--rmt-primary) !important; color: #fff !important; }

/* − button: positioned absolutely, slightly above the textarea top border */
.rmt-remove-btn {
	position: absolute !important;
	top: -13px !important;
	right: 6px !important;
	width: 24px !important;
	height: 24px !important;
	min-width: 24px !important;
	min-height: 24px !important;
	font-size: 15px !important;
	border-color: var(--rmt-danger) !important;
	color: var(--rmt-danger) !important;
	background: var(--rmt-surface) !important;
	z-index: 2;
}

.rmt-remove-btn:hover { background: var(--rmt-danger) !important; color: #fff !important; }

.rmt-add-btn-wrap {
	display: flex;
	align-items: center;  /* center vertically alongside textarea */
}

/* ── Merge button ─────────────────────────────────────────────────────────── */
.rmt-merge-btn {
	display: block;
	margin: 22px auto 0;
	padding: 13px 52px;
	background: var(--rmt-primary);
	color: #fff;
	border: none;
	border-radius: var(--rmt-radius-pill);
	font-size: 15px;
	font-weight: 700;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	cursor: pointer;
	transition: background 0.15s, transform 0.1s;
}

.rmt-merge-btn:hover  { background: var(--rmt-primary-dark); }
.rmt-merge-btn:active { transform: scale(0.97); }

/* ── Output section ───────────────────────────────────────────────────────── */
.rmt-output-section { margin-top: 24px; }

.rmt-combo-count {
	font-size: 13px;
	color: var(--rmt-text-muted);
	margin-bottom: 8px;
	font-weight: 500;
	min-height: 20px;
}

.rmt-combo-count strong { color: var(--rmt-primary); }

.rmt-output-area {
	width: 100%;
	min-height: 160px;
	border: 1.5px solid var(--rmt-border);
	border-radius: var(--rmt-radius-card);
	padding: 14px;
	font-size: 14px;
	font-family: 'Courier New', monospace;
	color: var(--rmt-text);
	background: #FAFAF9;
	resize: vertical;
	outline: none;
	transition: border-color 0.15s;
}

.rmt-output-area:focus { border-color: var(--rmt-primary); }

/* ── Action buttons ───────────────────────────────────────────────────────── */
.rmt-action-row {
	display: flex;
	gap: 10px;
	margin-top: 16px;
	justify-content: center;
	flex-wrap: wrap;
}

.rmt-action-btn {
	padding: 11px 26px;
	border-radius: var(--rmt-radius-pill);
	font-size: 13px;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	cursor: pointer;
	border: 2.5px solid var(--rmt-primary);
	background: var(--rmt-primary);
	color: #fff;
	transition: background 0.15s, color 0.15s, border-color 0.15s, transform 0.1s;
}

.rmt-action-btn:hover  { background: var(--rmt-primary-dark); border-color: var(--rmt-primary-dark); }
.rmt-action-btn:active { transform: scale(0.97); }

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

.rmt-action-btn.secondary { background: transparent; color: var(--rmt-primary); }
.rmt-action-btn.secondary:hover { background: var(--rmt-primary); color: #fff; }

/* ── Historial ────────────────────────────────────────────────────────────── */
.rmt-history-list { display: flex; flex-direction: column; gap: 14px; }

.rmt-empty-state {
	color: var(--rmt-text-muted);
	text-align: center;
	padding: 40px 0;
	font-size: 15px;
}

.rmt-history-item {
	border: 1.5px solid var(--rmt-border);
	border-left: 4px solid var(--rmt-primary);
	border-radius: var(--rmt-radius-card);
	padding: 14px 16px;
	background: var(--rmt-surface);
	box-shadow: var(--rmt-shadow);
	transition: box-shadow 0.15s;
}

.rmt-history-item:hover { box-shadow: 0 4px 18px rgba(107,79,160,0.18); }

.rmt-history-meta {
	display: flex;
	justify-content: space-between;
	font-size: 12px;
	color: var(--rmt-text-muted);
	margin-bottom: 6px;
	flex-wrap: wrap;
	gap: 4px;
}

.rmt-history-preview {
	font-size: 13px;
	color: var(--rmt-text);
	margin-bottom: 10px;
	font-family: 'Courier New', monospace;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

.rmt-history-restore-btn {
	font-size: 12px;
	font-weight: 600;
	color: var(--rmt-primary);
	background: none;
	border: 1.5px solid var(--rmt-primary);
	border-radius: var(--rmt-radius-pill);
	padding: 4px 14px;
	cursor: pointer;
	transition: background 0.15s, color 0.15s;
}

.rmt-history-restore-btn:hover { background: var(--rmt-primary); color: #fff; }

/* ── Modals ───────────────────────────────────────────────────────────────── */
.rmt-modal-overlay {
	position: fixed;
	inset: 0;
	background: rgba(0,0,0,0.5);
	display: flex;
	align-items: center;
	justify-content: center;
	z-index: 99999;
	padding: 16px;
}

.rmt-modal-overlay[hidden] { display: none; }

.rmt-modal-card {
	background: var(--rmt-surface);
	border-radius: var(--rmt-radius-card);
	padding: 32px 28px;
	width: 100%;
	max-width: 440px;
	box-shadow: 0 8px 40px rgba(107,79,160,0.25);
}

.rmt-modal-card.rmt-modal-centered { text-align: center; max-width: 360px; }

.rmt-modal-icon { font-size: 40px; margin-bottom: 12px; }

.rmt-modal-title {
	font-size: 20px;
	font-weight: 700;
	color: var(--rmt-primary);
	margin-bottom: 6px;
}

.rmt-modal-subtitle {
	font-size: 13px;
	color: var(--rmt-text-muted);
	margin-bottom: 20px;
	line-height: 1.5;
}

.rmt-modal-label {
	display: block;
	font-size: 11px;
	font-weight: 700;
	color: var(--rmt-text-muted);
	margin-bottom: 5px;
	text-transform: uppercase;
	letter-spacing: 0.07em;
}

.rmt-modal-input {
	width: 100%;
	border: 1.5px solid var(--rmt-border);
	border-radius: 8px;
	padding: 10px 12px;
	font-size: 14px;
	color: var(--rmt-text);
	outline: none;
	transition: border-color 0.15s;
	font-family: inherit;
}

.rmt-modal-input:focus { border-color: var(--rmt-primary); }

/* Filename row (prefix + free text) */
.rmt-filename-row {
	display: flex;
	align-items: stretch;
	border: 1.5px solid var(--rmt-border);
	border-radius: 8px;
	overflow: hidden;
	margin-bottom: 22px;
	transition: border-color 0.15s;
}

.rmt-filename-row:focus-within { border-color: var(--rmt-primary); }

.rmt-filename-prefix {
	background: var(--rmt-primary-bg);
	color: var(--rmt-text-muted);
	font-size: 12px;
	padding: 10px 10px 10px 12px;
	border-right: 1.5px solid var(--rmt-border);
	font-family: 'Courier New', monospace;
	user-select: none;
	white-space: nowrap;
	display: flex;
	align-items: center;
}

.rmt-filename-input {
	flex: 1;
	border: none;
	padding: 10px 12px;
	font-size: 13px;
	font-family: 'Courier New', monospace;
	color: var(--rmt-text);
	outline: none;
	background: var(--rmt-surface);
	min-width: 60px;
}

/* Modal actions */
.rmt-modal-actions {
	display: flex;
	gap: 10px;
	justify-content: flex-end;
}

.rmt-modal-actions-centered { justify-content: center; }

/* Newsletter checkbox */
.rmt-newsletter-check {
	display: flex;
	align-items: flex-start;
	gap: 10px;
	margin-top: 16px;
	cursor: pointer;
	font-size: 12px;
	color: var(--rmt-text-muted);
	line-height: 1.5;
}

.rmt-newsletter-check input[type="checkbox"] {
	margin-top: 2px;
	flex-shrink: 0;
	accent-color: var(--rmt-primary);
	width: 15px;
	height: 15px;
}

/* Form error */
.rmt-form-error {
	background: #FDEDEC;
	border: 1px solid #F5B7B1;
	border-radius: 6px;
	padding: 8px 12px;
	font-size: 13px;
	color: var(--rmt-danger);
	margin-top: 12px;
}

/* Switch text (login/register links) */
.rmt-modal-switch-text {
	text-align: center;
	font-size: 12px;
	color: var(--rmt-text-muted);
	margin-top: 16px;
}

/* Generic text button */
.rmt-text-btn {
	background: none;
	border: none;
	cursor: pointer;
	color: var(--rmt-primary);
	font-size: inherit;
	font-weight: 600;
	padding: 0;
	text-decoration: underline;
	text-underline-offset: 2px;
}

.rmt-text-btn:hover { color: var(--rmt-primary-dark); }