/* ========== Settings Page: Layout Picker ========== */

.ui-layout-options {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 0;
}

.interface-configuration-settings-page .card-header-tabs {
    margin-bottom: -1px;
}

.interface-configuration-checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 8px 18px;
    padding: 14px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: #f8fafc;
}

.interface-configuration-option-check {
    min-height: 28px;
    margin: 0;
}

.interface-configuration-option-check .form-check-input {
    cursor: pointer;
}

.ui-role-menu-builder {
    padding: 14px;
    background: #f1f3f5;
}

.ui-role-menu-column {
    min-height: 340px;
}

.ui-role-menu-list,
.ui-role-menu-preview {
    min-height: 270px;
    max-height: 420px;
    overflow-y: auto;
    padding: 0 14px 14px;
}

.ui-role-menu-list {
    border: 1px dashed #e5e7eb;
}

.ui-role-menu-list .left-menu-item {
    cursor: grab;
}

.ui-role-menu-preview {
    background: #1f2937;
    color: #d1d5db;
}

.ui-role-menu-preview-item {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 42px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.ui-role-menu-preview-item.is-submenu {
    padding-left: 26px;
    color: #9ca3af;
}

#ui-role-menu-custom-modal .ui-role-menu-icon-list {
    max-height: 230px;
    overflow-y: auto;
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    padding: 8px;
}

.ui-layout-option {
    cursor: pointer;
    padding: 0;
    margin: 0;
    flex: 1 1 0;
    width: auto;
    max-width: none;
}

.ui-layout-option > input[type=radio] {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.ui-layout-option > input[type=radio]:focus-visible + .ui-layout-card {
    outline: 2px solid var(--ui-accent, #0d6efd);
    outline-offset: 2px;
}

.ui-layout-card {
    display: block;
    width: 100%;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    padding: 12px;
    background: #fff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    height: 100%;
    position: relative;
}

.ui-layout-option:hover .ui-layout-card {
    border-color: #c7d2fe;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.08);
}

.ui-layout-option.selected .ui-layout-card {
    border-color: var(--ui-accent, #0d6efd);
    box-shadow: 0 0 0 3px rgba(var(--ui-accent-rgb, 13, 110, 253), 0.12), 0 2px 12px rgba(0, 0, 0, 0.06);
}

.ui-layout-option.selected .ui-layout-card::after {
    content: "✓";
    position: absolute;
    top: 8px;
    right: 10px;
    width: 22px;
    height: 22px;
    line-height: 22px;
    text-align: center;
    background: var(--ui-accent, #0d6efd);
    color: #fff;
    border-radius: 50%;
    font-size: 12px;
    font-weight: bold;
}

.ui-layout-preview {
    height: 170px;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    margin-bottom: 10px;
    position: relative;
    overflow: hidden;
}

.ui-layout-preview.glass-preview {
    background:
        radial-gradient(circle at 30% 20%, rgba(59, 130, 246, 0.35), transparent 45%),
        radial-gradient(circle at 70% 80%, rgba(147, 51, 234, 0.3), transparent 45%),
        linear-gradient(135deg, #0b1220 0%, #0a0f1c 100%);
}

.ui-layout-preview.tech-preview {
    background:
        radial-gradient(circle at 20% 30%, rgba(var(--ui-accent-rgb, 13, 110, 253), 0.22), transparent 40%),
        linear-gradient(135deg, #020617 0%, #0b1120 100%);
}

.ui-layout-name {
    text-align: center;
    font-weight: 600;
    color: #334155;
    font-size: 0.88rem;
}

.ui-layout-description {
    display: block;
    min-height: 2.4em;
    margin-top: 5px;
    color: #64748b;
    line-height: 1.35;
    text-align: center;
}

/* Shared subtitle layout for the real sign-in page and the live preview. */
.interface-configuration-subtitles {
    display: block;
    width: 100%;
    clear: both;
    padding: 0 24px 20px;
    text-align: center;
    line-height: 1.4;
}

.interface-configuration-subtitles .line1 {
    display: block;
    margin-bottom: 5px;
    color: var(--ui-accent, #0d6efd);
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.interface-configuration-subtitles .line1::before,
.interface-configuration-subtitles .line1::after {
    content: "";
    display: inline-block;
    width: 34px;
    height: 1px;
    margin: 0 10px;
    background: currentColor;
    opacity: 0.35;
    vertical-align: middle;
}

.interface-configuration-subtitles .line2 {
    display: block;
    color: #64748b;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    line-height: 1.4;
    overflow-wrap: anywhere;
}

body.interface-configuration-page.layout-classic .interface-configuration-subtitles .line1 {
    color: var(--ui-accent, #0d6efd);
}

body.interface-configuration-page.layout-classic .interface-configuration-subtitles .line2 {
    color: #64748b;
}

body.interface-configuration-page.layout-glass .interface-configuration-subtitles,
body.interface-configuration-page.layout-tech .interface-configuration-subtitles {
    padding-bottom: 18px;
}

@media (max-width: 480px) {
    .interface-configuration-subtitles .line1::before,
    .interface-configuration-subtitles .line1::after {
        width: 18px;
        margin: 0 6px;
    }
}

/* --- Mini card previews --- */
.interface-configuration-mini-card {
    width: 170px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    padding: 14px;
    box-sizing: border-box;
}

.interface-configuration-mini-logo-box {
    width: 60%;
    height: 18px;
    margin: 0 auto 12px;
    background: #e2e8f0;
    border-radius: 4px;
}

.interface-configuration-mini-input {
    height: 18px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    margin-bottom: 8px;
    background: #f8fafc;
}

.interface-configuration-mini-button {
    height: 22px;
    border-radius: 6px;
    background: #0d6efd;
    margin-top: 6px;
}

.classic-btn { background: var(--ui-accent, #0d6efd); }

/* Glass layout mini preview */
.glass-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.glass-card .interface-configuration-mini-logo-box {
    background: rgba(255, 255, 255, 0.2);
}

.glass-input {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(255, 255, 255, 0.15);
}

.glass-btn {
    background: linear-gradient(135deg, var(--ui-accent, #0d6efd), #60a5fa);
    background: linear-gradient(135deg, var(--ui-accent, #0d6efd), color-mix(in srgb, var(--ui-accent, #0d6efd) 60%, #60a5fa));
    box-shadow: 0 2px 10px rgba(var(--ui-accent-rgb, 13, 110, 253), 0.4);
}

/* Tech layout mini preview */
.tech-card {
    position: relative;
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid rgba(var(--ui-accent-rgb, 13, 110, 253), 0.35);
    border-radius: 0;
    clip-path: polygon(
        14px 0,
        calc(100% - 0px) 0,
        100% 14px,
        100% calc(100% - 24px),
        calc(100% - 24px) 100%,
        0 100%,
        0 0
    );
    box-shadow: 0 0 14px rgba(var(--ui-accent-rgb, 13, 110, 253), 0.25), inset 0 0 14px rgba(var(--ui-accent-rgb, 13, 110, 253), 0.08);
}

.interface-configuration-mini-corner {
    position: absolute;
    width: 8px;
    height: 8px;
    border: 1.5px solid var(--ui-accent, #0d6efd);
}
.interface-configuration-mini-corner.tl { top: 4px; left: 4px; border-right: 0; border-bottom: 0; }
.interface-configuration-mini-corner.tr { top: 4px; right: 4px; border-left: 0; border-bottom: 0; }
.interface-configuration-mini-corner.bl { bottom: 4px; left: 4px; border-right: 0; border-top: 0; }
.interface-configuration-mini-corner.br { bottom: 4px; right: 4px; border-left: 0; border-top: 0; }

.tech-card .interface-configuration-mini-logo-box {
    background: rgba(255, 255, 255, 0.1);
}

.tech-input {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(var(--ui-accent-rgb, 13, 110, 253), 0.3);
    border-radius: 2px;
}

.tech-btn {
    background: var(--ui-accent, #0d6efd);
    box-shadow: 0 0 10px rgba(var(--ui-accent-rgb, 13, 110, 253), 0.55);
    clip-path: polygon(
        8px 0,
        100% 0,
        calc(100% - 8px) 100%,
        0 100%
    );
    border-radius: 0;
}

.interface-configuration-mini-hex {
    position: absolute;
    bottom: 6px;
    right: 8px;
    width: 22px;
    height: 12px;
    background-image:
        radial-gradient(circle, var(--ui-accent, #0d6efd) 1px, transparent 1.5px);
    background-size: 4px 4px;
    background-repeat: repeat;
    opacity: 0.65;
}

/* Metallic / Premium layout mini preview */
.ui-layout-preview.metallic-preview {
    position: relative;
    background:
        radial-gradient(circle at 28% 18%, rgba(255, 255, 255, 0.2), transparent 18%),
        radial-gradient(circle at 76% 72%, rgba(148, 163, 184, 0.18), transparent 25%),
        linear-gradient(135deg, #020202 0%, #171717 48%, #030303 100%);
}

.metallic-card {
    position: relative;
    overflow: hidden;
    background: linear-gradient(145deg, #090909, #272727 50%, #080808);
    border: 1px solid #dbe4ec;
    border-radius: 12px;
    box-shadow: 0 0 12px rgba(226, 232, 240, 0.38), inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

.metallic-card::before,
.metallic-card::after {
    content: "";
    position: absolute;
    pointer-events: none;
}

.metallic-card::before {
    inset: -45%;
    background: linear-gradient(110deg, transparent 42%, rgba(255, 255, 255, 0.65) 49%, transparent 56%);
    transform: translateX(-55%) rotate(8deg);
    animation: ui-metallic-sweep 5s ease-in-out infinite;
}

.metallic-card::after {
    top: 4px;
    left: 22%;
    width: 34%;
    height: 1px;
    background: #fff;
    box-shadow: 0 0 7px 2px rgba(255, 255, 255, 0.8);
    opacity: 0.9;
}

.metallic-card > * {
    position: relative;
    z-index: 1;
}

.interface-configuration-mini-spark {
    position: absolute;
    z-index: 2;
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 6px 2px rgba(255, 255, 255, 0.9);
    animation: ui-metallic-twinkle 2.6s ease-in-out infinite;
}

.interface-configuration-mini-spark.spark-1 { top: 18px; right: 24px; }
.interface-configuration-mini-spark.spark-2 { top: 52px; left: 18px; animation-delay: 0.8s; }
.interface-configuration-mini-spark.spark-3 { bottom: 18px; right: 48px; animation-delay: 1.4s; }

.interface-configuration-mini-shine {
    position: absolute;
    z-index: 2;
    top: 4px;
    left: 25%;
    width: 32%;
    height: 1px;
    background: #fff;
    box-shadow: 0 0 6px 2px rgba(255, 255, 255, 0.8);
}

.interface-configuration-gap { gap: 15px; }

.ui-transparency-value {
    min-width: 3.5rem;
    color: #64748b;
    font-variant-numeric: tabular-nums;
}

.ui-background-upload {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.ui-background-preview {
    width: 120px;
    height: 72px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.ui-custom-logo-preview {
    width: 140px;
    height: 42px;
    object-fit: contain;
    object-position: left center;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    background: #f8fafc;
}

.ui-live-preview-card {
    position: static;
}

.interface-configuration-preview-frame {
    display: block;
    width: 100%;
    height: 650px;
    border: 0;
    background: #f8fafc;
}

@media (max-width: 1199px) {
    .interface-configuration-preview-frame { height: 560px; }
}

@media (max-width: 767px) {
    .ui-layout-options { display: block; }
    .ui-layout-option { display: block; width: 100%; margin-bottom: 12px; }
}

/* ========== Login Page Overrides ========== */

/* Generic accent color application */
body.interface-configuration-page.layout-glass .btn-primary,
body.interface-configuration-page.layout-tech .btn-primary,
body.interface-configuration-page.layout-classic .btn-primary {
    background-color: var(--ui-accent);
    border-color: var(--ui-accent);
}

body.interface-configuration-page.layout-glass .btn-primary:hover,
body.interface-configuration-page.layout-tech .btn-primary:hover,
body.interface-configuration-page.layout-classic .btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0b5ed7;
    background-color: color-mix(in srgb, var(--ui-accent) 85%, black);
    border-color: color-mix(in srgb, var(--ui-accent) 85%, black);
}

body.interface-configuration-page.layout-glass a,
body.interface-configuration-page.layout-tech a {
    color: var(--ui-accent);
}

/* ========== Layout: Glassmorphism ========== */

html.interface-configuration-layout-glass,
body.interface-configuration-page.layout-glass {
    background:
        radial-gradient(1200px 800px at 20% 10%, rgba(59, 130, 246, 0.25), transparent 60%),
        radial-gradient(900px 600px at 85% 90%, rgba(147, 51, 234, 0.22), transparent 55%),
        linear-gradient(135deg, #050913 0%, #0b1220 50%, #0a0e1a 100%);
    min-height: 100vh;
}

body.interface-configuration-page.layout-glass::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(var(--ui-accent-rgb), 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--ui-accent-rgb), 0.04) 1px, transparent 1px);
    background-size: 44px 44px;
    pointer-events: none;
    z-index: 0;
}

body.interface-configuration-page.layout-glass .scrollable-page {
    position: relative;
    z-index: 1;
}

body.interface-configuration-page.layout-glass .form-signin {
    max-width: 460px;
}

body.interface-configuration-page.layout-glass .form-signin .card {
    background: rgb(255 255 255 / var(--ui-card-alpha, 0.07)) !important;
    backdrop-filter: blur(18px) saturate(160%);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 22px;
    box-shadow:
        0 18px 60px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.2),
        inset 0 -1px 0 rgba(255, 255, 255, 0.05);
    overflow: hidden;
}

body.interface-configuration-page.layout-glass .form-signin .card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1.5px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0) 40%, rgba(var(--ui-accent-rgb), 0) 60%, rgba(var(--ui-accent-rgb), 0.25));
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

body.interface-configuration-page.layout-glass .form-signin .card-header,
body.interface-configuration-page.layout-glass .form-signin .card-body {
    background: transparent;
    color: #e2e8f0;
    border: none;
}

body.interface-configuration-page.layout-glass .form-signin .card-body {
    padding: 28px 36px 36px;
}

body.interface-configuration-page.layout-glass .form-signin .card-header {
    padding: 32px 36px 12px;
}

body.interface-configuration-page.layout-glass .form-signin label,
body.interface-configuration-page.layout-glass .form-signin h2,
body.interface-configuration-page.layout-glass .form-signin .mt5,
body.interface-configuration-page.layout-glass .form-signin .mt20 {
    color: #cbd5e1;
}

body.interface-configuration-page.layout-glass .form-signin .mt5 a,
body.interface-configuration-page.layout-glass .form-signin .mt20 a {
    color: var(--ui-accent);
    font-weight: 500;
}

body.interface-configuration-page.layout-glass .form-signin .form-control {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.16);
    color: #f1f5f9;
    border-radius: 14px;
    padding: 14px 16px;
    font-size: 0.95rem;
    transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

body.interface-configuration-page.layout-glass .form-signin .form-control::placeholder {
    color: rgba(203, 213, 225, 0.55);
}

body.interface-configuration-page.layout-glass .form-signin .form-control:focus {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(var(--ui-accent-rgb), 0.7);
    color: #fff;
    box-shadow: 0 0 0 3px rgba(var(--ui-accent-rgb), 0.18);
    outline: none;
}

body.interface-configuration-page.layout-glass .form-signin .btn-primary {
    border-radius: 16px;
    padding: 14px;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    background: linear-gradient(135deg, var(--ui-accent), #60a5fa);
    background: linear-gradient(135deg,
        var(--ui-accent) 0%,
        color-mix(in srgb, var(--ui-accent) 70%, #60a5fa) 100%);
    border: none;
    box-shadow:
        0 6px 22px rgba(var(--ui-accent-rgb), 0.45),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: transform 0.15s ease, box-shadow 0.2s ease;
}

body.interface-configuration-page.layout-glass .form-signin .btn-primary:hover {
    transform: translateY(-1px);
    box-shadow:
        0 10px 28px rgba(var(--ui-accent-rgb), 0.55),
        inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

body.interface-configuration-page.layout-glass .alert-danger {
    background: rgba(220, 38, 38, 0.15);
    border: 1px solid rgba(248, 113, 113, 0.3);
    color: #fecaca;
}

/* ========== Layout: Tech / Sci-Fi ========== */

html.interface-configuration-layout-tech,
body.interface-configuration-page.layout-tech {
    background:
        radial-gradient(1000px 700px at 50% -10%, rgba(var(--ui-accent-rgb), 0.18), transparent 55%),
        radial-gradient(600px 400px at 90% 100%, rgba(147, 51, 234, 0.12), transparent 50%),
        linear-gradient(135deg, #020617 0%, #020617 60%, #030712 100%);
    min-height: 100vh;
}

body.interface-configuration-page.layout-tech::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(var(--ui-accent-rgb), 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--ui-accent-rgb), 0.06) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 85%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 85%);
    pointer-events: none;
    z-index: 0;
}

body.interface-configuration-page.layout-tech::after {
    content: "";
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 35vh;
    background:
        linear-gradient(180deg, transparent 0%, rgba(var(--ui-accent-rgb), 0.05) 100%);
    pointer-events: none;
    z-index: 0;
}

body.interface-configuration-page.layout-tech .scrollable-page {
    position: relative;
    z-index: 1;
}

body.interface-configuration-page.layout-tech .form-signin {
    max-width: 480px;
}

body.interface-configuration-page.layout-tech .form-signin .card {
    position: relative;
    background: linear-gradient(180deg,
        rgb(15 23 42 / var(--ui-card-alpha, 0.78)) 0%,
        rgb(2 6 23 / var(--ui-card-alpha, 0.88)) 100%) !important;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(var(--ui-accent-rgb), 0.35);
    border-radius: 0;
    clip-path: polygon(
        32px 0,
        calc(100% - 0px) 0,
        100% 32px,
        100% calc(100% - 46px),
        calc(100% - 46px) 100%,
        0 100%,
        0 0
    );
    box-shadow:
        0 0 0 1px rgba(var(--ui-accent-rgb), 0.12),
        0 18px 60px rgba(0, 0, 0, 0.6),
        0 0 32px rgba(var(--ui-accent-rgb), 0.15),
        inset 0 0 40px rgba(var(--ui-accent-rgb), 0.04);
    overflow: visible;
}

/* Corner brackets */
body.interface-configuration-page.layout-tech .form-signin .card::before,
body.interface-configuration-page.layout-tech .form-signin .card::after {
    content: "";
    position: absolute;
    width: 32px;
    height: 32px;
    border: 2px solid var(--ui-accent);
    z-index: 3;
    pointer-events: none;
    filter: drop-shadow(0 0 4px rgba(var(--ui-accent-rgb), 0.7));
}

body.interface-configuration-page.layout-tech .form-signin .card::before {
    top: 10px;
    right: 10px;
    border-left: 0;
    border-bottom: 0;
}

body.interface-configuration-page.layout-tech .form-signin .card::after {
    bottom: 10px;
    left: 10px;
    border-right: 0;
    border-top: 0;
}

body.interface-configuration-page.layout-tech .form-signin .card-header,
body.interface-configuration-page.layout-tech .form-signin .card-body {
    background: transparent;
    color: #e2e8f0;
    border: none;
}

body.interface-configuration-page.layout-tech .form-signin .card-header {
    padding: 34px 40px 12px;
}

body.interface-configuration-page.layout-tech .form-signin .card-body {
    padding: 24px 40px 40px;
}

body.interface-configuration-page.layout-classic .form-signin .card {
    background: rgb(255 255 255 / var(--ui-card-alpha, 1)) !important;
}

body.interface-configuration-page.layout-tech .form-signin label,
body.interface-configuration-page.layout-tech .form-signin h2 {
    color: #cbd5e1;
}

body.interface-configuration-page.layout-tech .form-signin .mt5 a {
    color: var(--ui-accent);
    font-weight: 500;
    position: relative;
    text-decoration: none;
}

body.interface-configuration-page.layout-tech .form-signin .mt5 a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, var(--ui-accent), transparent);
}

body.interface-configuration-page.layout-tech .form-signin .mt20 {
    color: #94a3b8;
}

body.interface-configuration-page.layout-tech .form-signin .mt20 a {
    color: var(--ui-accent);
}

body.interface-configuration-page.layout-tech .form-signin .form-control {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(var(--ui-accent-rgb), 0.28);
    color: #f1f5f9;
    border-radius: 2px;
    padding: 13px 16px;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
    clip-path: polygon(
        10px 0,
        100% 0,
        100% calc(100% - 10px),
        calc(100% - 10px) 100%,
        0 100%,
        0 10px
    );
    transition: background-color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

body.interface-configuration-page.layout-tech .form-signin .form-control::placeholder {
    color: rgba(148, 163, 184, 0.6);
    text-transform: none;
}

body.interface-configuration-page.layout-tech .form-signin .form-control:focus {
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--ui-accent);
    color: #fff;
    box-shadow:
        0 0 0 1px var(--ui-accent),
        0 0 14px rgba(var(--ui-accent-rgb), 0.3),
        inset 0 0 12px rgba(var(--ui-accent-rgb), 0.08);
    outline: none;
}

body.interface-configuration-page.layout-tech .form-signin .btn-primary {
    position: relative;
    padding: 14px;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: none;
    background: var(--ui-accent);
    border: none;
    border-radius: 0;
    clip-path: polygon(
        14px 0,
        100% 0,
        calc(100% - 14px) 100%,
        0 100%
    );
    box-shadow:
        0 0 0 1px rgba(var(--ui-accent-rgb), 0.5),
        0 0 22px rgba(var(--ui-accent-rgb), 0.55),
        inset 0 0 14px rgba(255, 255, 255, 0.08);
    transition: filter 0.15s ease, box-shadow 0.15s ease;
}

body.interface-configuration-page.layout-tech .form-signin .btn-primary:hover {
    filter: brightness(1.1);
    box-shadow:
        0 0 0 1px var(--ui-accent),
        0 0 36px rgba(var(--ui-accent-rgb), 0.75),
        inset 0 0 18px rgba(255, 255, 255, 0.12);
}

body.interface-configuration-page.layout-tech .alert-danger {
    background: rgba(127, 29, 29, 0.4);
    border: 1px solid rgba(239, 68, 68, 0.45);
    color: #fecaca;
    clip-path: polygon(
        8px 0,
        100% 0,
        100% calc(100% - 8px),
        calc(100% - 8px) 100%,
        0 100%,
        0 8px
    );
    border-radius: 0;
}

/* ========== Layout: Metallic / Premium ========== */
html.interface-configuration-layout-metallic,
body.interface-configuration-page.layout-metallic {
    background:
        radial-gradient(900px 520px at 50% -12%, rgba(var(--ui-metal-glow, 226, 232, 240), 0.16), transparent 62%),
        radial-gradient(600px 420px at 12% 88%, rgba(var(--ui-metal-glow, 226, 232, 240), 0.1), transparent 60%),
        #020202;
}

body.interface-configuration-page.layout-metallic::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.34;
    background-image:
        radial-gradient(circle at 17% 28%, #fff 0 1px, transparent 2px),
        radial-gradient(circle at 78% 18%, #fff 0 1px, transparent 2px),
        radial-gradient(circle at 86% 76%, #fff 0 1px, transparent 2px),
        radial-gradient(circle at 28% 84%, #fff 0 1px, transparent 2px);
    background-size: 260px 220px, 340px 280px, 300px 260px, 420px 360px;
    animation: ui-metallic-twinkle 4s ease-in-out infinite;
}

body.interface-configuration-page.layout-metallic .scrollable-page {
    position: relative;
    z-index: 1;
}

body.interface-configuration-page.layout-metallic.metallic-tone-silver {
    --ui-metal-edge: #e2e8f0;
    --ui-metal-bright: #fff;
    --ui-metal-mid: #94a3b8;
    --ui-metal-dark: #334155;
    --ui-metal-glow: 226, 232, 240;
    --ui-metal-button-text: #0f172a;
}

body.interface-configuration-page.layout-metallic.metallic-tone-gold {
    --ui-metal-edge: #fde68a;
    --ui-metal-bright: #fff7cc;
    --ui-metal-mid: #d4a72c;
    --ui-metal-dark: #6b4f12;
    --ui-metal-glow: 250, 204, 21;
    --ui-metal-button-text: #241600;
}

body.interface-configuration-page.layout-metallic .form-signin {
    max-width: 520px;
}

body.interface-configuration-page.layout-metallic .form-signin .card {
    position: relative;
    overflow: hidden;
    background: linear-gradient(145deg, rgba(10, 10, 10, 0.96), rgba(38, 38, 38, 0.9) 50%, rgba(5, 5, 5, 0.97)) !important;
    border: 1px solid var(--ui-metal-edge, #e2e8f0);
    border-radius: 28px;
    box-shadow:
        0 0 0 1px rgba(var(--ui-metal-glow, 226, 232, 240), 0.24),
        0 20px 70px rgba(0, 0, 0, 0.7),
        0 0 28px rgba(var(--ui-metal-glow, 226, 232, 240), 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.65);
}

body.interface-configuration-page.layout-metallic .form-signin .card::before {
    content: "";
    position: absolute;
    inset: -35%;
    z-index: 0;
    pointer-events: none;
    background: linear-gradient(112deg, transparent 40%, rgba(255, 255, 255, 0.04) 47%, rgba(var(--ui-metal-glow, 226, 232, 240), 0.38) 50%, rgba(255, 255, 255, 0.05) 53%, transparent 60%);
    transform: translateX(-58%) rotate(8deg);
    animation: ui-metallic-sweep 7s ease-in-out infinite;
}

body.interface-configuration-page.layout-metallic .form-signin .card::after {
    content: "";
    position: absolute;
    top: 6px;
    left: 30%;
    width: 40%;
    height: 1px;
    z-index: 2;
    pointer-events: none;
    background: var(--ui-metal-bright, #fff);
    box-shadow: 0 0 12px 3px rgba(var(--ui-metal-glow, 226, 232, 240), 0.8);
}

body.interface-configuration-page.layout-metallic .form-signin .card-header,
body.interface-configuration-page.layout-metallic .form-signin .card-body {
    position: relative;
    z-index: 1;
    background: transparent !important;
    border: none;
    color: #e5e7eb;
}

body.interface-configuration-page.layout-metallic .form-signin .card-header {
    padding: 30px 40px 8px;
}

body.interface-configuration-page.layout-metallic .form-signin .card-body {
    padding: 24px 40px 38px;
}

body.interface-configuration-page.layout-metallic .form-signin h2,
body.interface-configuration-page.layout-metallic .form-signin label,
body.interface-configuration-page.layout-metallic .form-signin .mt5,
body.interface-configuration-page.layout-metallic .form-signin .mt20 {
    color: #d1d5db;
}

body.interface-configuration-page.layout-metallic .form-signin .form-control {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(0, 0, 0, 0.28)) !important;
    border: 1px solid rgba(var(--ui-metal-glow, 226, 232, 240), 0.34);
    border-radius: 13px;
    color: #f8fafc;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

body.interface-configuration-page.layout-metallic .form-signin .form-control::placeholder {
    color: rgba(226, 232, 240, 0.68);
}

body.interface-configuration-page.layout-metallic .form-signin .form-control:focus {
    border-color: var(--ui-metal-edge, #e2e8f0);
    box-shadow: 0 0 0 3px rgba(var(--ui-metal-glow, 226, 232, 240), 0.16), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

body.interface-configuration-page.layout-metallic .form-signin .btn-primary {
    /* Keep the selected accent as the button color and layer a diagonal metallic sheen over it. */
    background-color: var(--ui-accent, #0d6efd) !important;
    background-image: linear-gradient(132deg,
        rgba(255, 255, 255, 0.48) 0%,
        rgba(255, 255, 255, 0.08) 17%,
        rgba(255, 255, 255, 0.34) 42%,
        rgba(255, 255, 255, 0.02) 53%,
        rgba(0, 0, 0, 0.24) 100%) !important;
    border: 1px solid var(--ui-metal-edge, #e2e8f0);
    border-radius: 13px;
    color: var(--ui-metal-button-text, #0f172a) !important;
    font-weight: 700;
    box-shadow: 0 8px 24px rgba(var(--ui-metal-glow, 226, 232, 240), 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

body.interface-configuration-page.layout-metallic .form-signin .btn-primary:hover {
    filter: brightness(1.12);
    box-shadow: 0 10px 30px rgba(var(--ui-metal-glow, 226, 232, 240), 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

body.interface-configuration-page.layout-metallic .form-signin .mt5 a {
    color: var(--ui-metal-bright, #fff) !important;
}

body.interface-configuration-page.layout-metallic .interface-configuration-subtitles .line1 {
    color: var(--ui-metal-bright, #fff);
}

body.interface-configuration-page.layout-metallic .interface-configuration-subtitles .line2 {
    color: var(--ui-metal-mid, #94a3b8);
}

@keyframes ui-metallic-sweep {
    0%, 35% { transform: translateX(-58%) rotate(8deg); }
    65%, 100% { transform: translateX(58%) rotate(8deg); }
}

@keyframes ui-metallic-twinkle {
    0%, 100% { opacity: 0.35; }
    50% { opacity: 0.95; }
}

/* Subtitles text color for the darker layouts. */
body.interface-configuration-page.layout-glass .interface-configuration-subtitles .line2,
body.interface-configuration-page.layout-tech .interface-configuration-subtitles .line2 {
    color: rgba(226, 232, 240, 0.65);
}

body.interface-configuration-page.layout-glass .interface-configuration-subtitles .line1::before,
body.interface-configuration-page.layout-glass .interface-configuration-subtitles .line1::after,
body.interface-configuration-page.layout-tech .interface-configuration-subtitles .line1::before,
body.interface-configuration-page.layout-tech .interface-configuration-subtitles .line1::after {
    opacity: 0.35;
}

@media (prefers-reduced-motion: reduce) {
    .ui-layout-card,
    .metallic-card::before,
    .interface-configuration-mini-spark,
    body.interface-configuration-page.layout-metallic::before,
    body.interface-configuration-page.layout-metallic .form-signin .card::before,
    body.interface-configuration-page .form-signin .form-control,
    body.interface-configuration-page .form-signin .btn-primary {
        transition: none;
        animation: none;
    }
}