/* ============================================
   PRINT ONE - PREMIUM MODERN DESIGN
   ============================================ */

/* ===== CSS VARIJABLE - LIGHT TEMA ===== */
:root {
    /* Primarne boje - Soft Blue */
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --primary-light: #e7f0ff;
    --primary-gradient: linear-gradient(135deg, #5da2ff 0%, #7c7bff 100%);

    /* Akcent boje */
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #06b6d4;

    /* Pozadine */
    --bg-color: #f3f6fb;
    --bg-gradient: linear-gradient(135deg, #eef2ff 0%, #f8fafc 100%);
    --card-bg: #ffffff;
    --card-glass: #ffffff;
    --input-bg: #ffffff;
    --hover-bg: #f1f5fb;

    /* Tekst */
    --text-color: #1f2937;
    --text-muted: #667085;
    --text-light: #98a2b3;

    /* Borderi */
    --border-color: #e3e8f2;
    --border-focus: #5b8dff;

    /* Senke */
    --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
    --shadow-md: 0 4px 12px rgba(16, 24, 40, 0.08);
    --shadow-lg: 0 10px 20px rgba(16, 24, 40, 0.12);
    --shadow-xl: 0 16px 28px rgba(16, 24, 40, 0.14);
    --shadow-glow: 0 0 24px rgba(91, 141, 255, 0.25);

    /* Zaobljenja */
    --radius-sm: 0.6rem;
    --radius-md: 0.9rem;
    --radius-lg: 1.1rem;
    --radius-xl: 1.6rem;

    /* Animacije */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===== DARK TEMA ===== */
[data-theme="dark"] {
    --bg-color: #0f1420;
    --bg-gradient: linear-gradient(135deg, #111827 0%, #0b1020 100%);
    --card-bg: #151b2c;
    --card-glass: #151b2c;
    --input-bg: #0f172a;
    --hover-bg: #1c263a;

    --text-color: #e5eaf3;
    --text-muted: #9aa4b2;
    --text-light: #7a8597;

    --border-color: #283246;
    --border-focus: #7aa2ff;

    --shadow-sm: 0 1px 2px rgba(2, 6, 23, 0.6);
    --shadow-md: 0 6px 14px rgba(2, 6, 23, 0.45);
    --shadow-lg: 0 12px 22px rgba(2, 6, 23, 0.45);
    --shadow-xl: 0 18px 28px rgba(2, 6, 23, 0.5);
    --shadow-glow: 0 0 24px rgba(122, 162, 255, 0.25);
}

/* ===== GLOBALNI STILOVI ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-base), color var(--transition-base);
    min-height: 100vh;
}

input,
textarea,
.form-control,
.form-select {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-color);
    padding: 0.6rem 0.75rem;
    font-size: 0.9rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus,
textarea:focus,
.form-control:focus,
.form-select:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(91, 141, 255, 0.15);
    outline: none;
}

/* Premium Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 10% 20%, rgba(93, 162, 255, 0.12) 0%, transparent 45%),
        radial-gradient(circle at 80% 10%, rgba(124, 123, 255, 0.12) 0%, transparent 40%);
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    position: relative;
    z-index: 1;
}

/* ===== HEADER - GLASSMORPHISM ===== */
.main-header {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 1.25rem 1.75rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.nav-tabs .nav-link {
    border-radius: 999px;
    border: 1px solid transparent;
}

.nav-tabs .nav-link.active {
    background-color: rgba(91, 141, 255, 0.12);
    border-color: rgba(91, 141, 255, 0.35);
}

.main-header:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-2px);
}

.main-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-color);
}

.app-version-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 30px;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: rgba(91, 141, 255, 0.1);
    color: var(--text-muted);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.calculator-help-trigger {
    width: 2rem;
    height: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

/* ===== KARTICE - GLASSMORPHISM ===== */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 1.75rem;
    margin-bottom: 1.75rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 0.75rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.card-header h5 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

.card-body {
    padding: 0;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* ===== DUGMAD - MODERN ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.4rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
}

.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* ===== FORME I INPUTI - PREMIUM ===== */
.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.9375rem;
    letter-spacing: 0.01em;
}

input[type="text"],
input[type="number"],
input[type="password"],
textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    background: var(--input-bg);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-family: inherit;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.5);
}

.password-wrapper {
    position: relative;
}

.password-wrapper input {
    padding-right: 3rem;
}

.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--text-muted, #64748b);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.password-toggle:hover,
.password-toggle:focus-visible {
    color: var(--text-color);
    outline: none;
}

.password-toggle svg {
    pointer-events: none;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

/* Select sa custom arrow */
select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-repeat: no-repeat !important;
    background-position: right 0.85rem center !important;
    background-size: 1.15rem !important;
    width: 100%;
    padding: 0.875rem 2.75rem 0.875rem 1rem;
    font-size: 1rem;
    background-color: rgba(255, 255, 255, 0.9);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%233b82f6'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2.5' d='M6 9l6 6 6-6'%3E%3C/path%3E%3C/svg%3E");
    color: var(--text-color);
    border: 1px solid rgba(148, 163, 184, 0.4);
    border-radius: 16px;
    transition: all var(--transition-fast);
    font-family: inherit;
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.6),
        0 6px 18px rgba(15, 23, 42, 0.08);
    cursor: pointer;
}

.custom-select-hidden {
    display: none !important;
}

.custom-select {
    position: relative;
    width: 100%;
}

.custom-select-display {
    width: 100%;
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.95);
    padding: 0.85rem 2.75rem 0.85rem 1rem;
    text-align: left;
    color: var(--text-color);
    font-size: 1rem;
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.6),
        0 6px 18px rgba(15, 23, 42, 0.08);
    position: relative;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.custom-select-display:hover {
    border-color: rgba(91, 141, 255, 0.6);
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.65),
        0 8px 22px rgba(15, 23, 42, 0.12);
}

.custom-select.is-disabled .custom-select-display,
.custom-select-display:disabled {
    opacity: 0.58;
    cursor: not-allowed;
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.45),
        0 2px 8px rgba(15, 23, 42, 0.05);
}

.custom-select.is-disabled .custom-select-display:hover,
.custom-select-display:disabled:hover {
    border-color: rgba(148, 163, 184, 0.35);
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.45),
        0 2px 8px rgba(15, 23, 42, 0.05);
}

.custom-select-display:focus {
    outline: none;
    border-color: rgba(59, 130, 246, 0.7);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.14);
}

.custom-select-chevron {
    position: absolute;
    right: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%233b82f6'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2.5' d='M6 9l6 6 6-6'%3E%3C/path%3E%3C/svg%3E") no-repeat center / contain;
    pointer-events: none;
}

.custom-select.is-open .custom-select-chevron {
    transform: translateY(-50%) rotate(180deg);
}

.custom-select-dropdown {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 8px);
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: 18px;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.18);
    padding: 0.6rem;
    z-index: 40;
    display: none;
}

.custom-select.is-open .custom-select-dropdown {
    display: block;
}

.custom-select-search {
    width: 100%;
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: 12px;
    padding: 0.6rem 0.75rem;
    font-size: 0.92rem;
    margin-bottom: 0.5rem;
    background: rgba(248, 250, 252, 0.95);
}

.custom-select-list {
    max-height: 260px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.custom-select-option {
    border: none;
    background: transparent;
    padding: 0.55rem 0.65rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-color);
    cursor: pointer;
    text-align: left;
    transition: background 0.15s ease;
}

.custom-select--color .custom-select-value,
.custom-select--color .custom-select-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.custom-select--color .color-swatch {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background-color: var(--swatch-color, #cbd5f5);
    border: 1px solid rgba(148, 163, 184, 0.45);
    box-shadow: none;
    flex: 0 0 auto;
}

.custom-select--color .color-swatch.is-empty {
    background-color: #e2e8f0;
    border-color: rgba(148, 163, 184, 0.6);
}

.custom-select--color .color-code {
    font-size: 0.75rem;
    color: var(--text-muted);
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: 999px;
    padding: 0.1rem 0.45rem;
}

[data-theme="dark"] .custom-select--color .color-code {
    color: #cbd5f5;
    border-color: rgba(148, 163, 184, 0.4);
}

[data-theme="dark"] .custom-select--color .color-swatch {
    border-color: rgba(226, 232, 240, 0.25);
}

[data-theme="dark"] .custom-select--color .color-swatch.is-empty {
    background-color: #334155;
    border-color: rgba(226, 232, 240, 0.35);
}

.custom-select-option:hover {
    background: rgba(59, 130, 246, 0.08);
}

.custom-select-option.is-selected {
    background: rgba(59, 130, 246, 0.14);
    font-weight: 600;
}

.custom-select-check {
    opacity: 0;
    color: #3b82f6;
}

.custom-select-option.is-selected .custom-select-check {
    opacity: 1;
}

.custom-select-empty {
    padding: 0.6rem 0.75rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

[data-theme="dark"] .custom-select-display {
    background: rgba(15, 23, 42, 0.85);
    border-color: rgba(148, 163, 184, 0.3);
    color: #e2e8f0;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), 0 8px 18px rgba(0, 0, 0, 0.35);
}

[data-theme="dark"] .custom-select-dropdown {
    background: rgba(15, 23, 42, 0.98);
    border-color: rgba(148, 163, 184, 0.2);
}

[data-theme="dark"] .custom-select-search {
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(148, 163, 184, 0.3);
    color: #e2e8f0;
}

[data-theme="dark"] .custom-select-option {
    color: #e2e8f0;
}

[data-theme="dark"] .custom-select-option:hover {
    background: rgba(59, 130, 246, 0.2);
}

[data-theme="dark"] .custom-select-option.is-selected {
    background: rgba(59, 130, 246, 0.25);
}

[data-theme="dark"] .custom-select-chevron {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2399c2ff'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2.5' d='M6 9l6 6 6-6'%3E%3C/path%3E%3C/svg%3E");
}

select:hover {
    border-color: rgba(91, 141, 255, 0.6);
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.65),
        0 8px 20px rgba(15, 23, 42, 0.1);
}

select:focus {
    border-color: rgba(59, 130, 246, 0.7);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.14);
}

/* ===== TABS - MODERN ===== */
.nav-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0;
}

.nav-tabs .nav-link {
    padding: 1rem 1.5rem;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-weight: 600;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-tabs .nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.nav-tabs .nav-link.active {
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.05);
}

.nav-tabs .nav-link.active::after {
    transform: scaleX(1);
}

.nav-tabs .nav-link:hover:not(.active) {
    color: var(--text-color);
    background: var(--hover-bg);
}

/* ===== REZULTATI - 3 KOLONE ===== */
.result-columns-wrapper {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin: 1.5rem 0;
}

.result-box {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.result-column {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.result-column--primary {
    border-color: rgba(93, 162, 255, 0.45);
    background: linear-gradient(180deg, rgba(93, 162, 255, 0.08), rgba(99, 102, 241, 0.04));
    box-shadow: 0 12px 26px rgba(15, 23, 42, 0.08);
}

.result-column--primary .result-column-header,
.result-column--primary .result-column-value {
    color: var(--primary-color);
}

.result-column:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(93, 162, 255, 0.3);
}

.result-column-header {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 0.6rem;
}

.result-column-value {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0.35rem 0;
    line-height: 1.15;
}

.result-column-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.result-breakdown {
    display: flex;
    flex-direction: column;
    gap: 0.38rem;
    font-size: 0.78rem;
}

.result-breakdown-row {
    display: grid;
    grid-template-columns: minmax(170px, 1.2fr) minmax(140px, 1fr);
    align-items: start;
    gap: 0.55rem;
}

.result-breakdown-row--top {
    grid-template-columns: minmax(120px, 0.82fr) minmax(220px, 1.18fr);
}

.result-breakdown-label {
    min-width: 0;
    line-height: 1.25;
    color: var(--text-muted);
}

.result-breakdown-value {
    min-width: 0;
    text-align: right;
    color: var(--text-color);
    line-height: 1.25;
    overflow-wrap: anywhere;
}

.result-breakdown-group {
    display: flex;
    flex-direction: column;
    gap: 0.24rem;
    padding-top: 0.15rem;
}

.result-breakdown-group-title {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.result-breakdown-row--subitem .result-breakdown-label::before {
    content: '•';
    display: inline-block;
    margin-right: 0.35rem;
    color: var(--text-muted);
}

.result-breakdown-note {
    font-style: italic;
    color: var(--text-muted);
    margin-bottom: 0.1rem;
    font-size: 0.72rem;
}

.result-breakdown-meta,
.result-breakdown-summary,
.result-breakdown-footer,
.result-margin-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.result-breakdown-meta {
    color: var(--text-muted);
    font-size: 0.72rem;
}

.result-breakdown-meta strong {
    color: var(--text-color);
    text-align: right;
    overflow-wrap: anywhere;
}

.result-breakdown-summary,
.result-breakdown-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 0.35rem;
    margin-top: 0.15rem;
}

.result-breakdown-summary strong:last-child,
.result-breakdown-footer span:last-child {
    text-align: right;
}

.result-margin-row {
    margin-bottom: 0.25rem;
    align-items: flex-start;
}

.result-margin-input {
    width: 104px;
    flex: 0 0 auto;
}

.result-profit-line {
    margin-top: 0.1rem;
    text-align: right;
    color: #16a34a;
    font-size: 0.76rem;
    font-weight: 600;
}

.result-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-right: 0.35rem;
    opacity: 0.8;
}

.result-section-title {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.promo-extra-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.promo-extra-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
}

.promo-stock-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.9rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--card-bg);
    box-shadow: var(--shadow-sm);
}

.promo-stock-bar.is-fresh {
    background: rgba(16, 185, 129, 0.08);
    border-color: rgba(16, 185, 129, 0.25);
}

.promo-stock-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 0.2rem;
}

.promo-stock-result {
    font-size: 0.9rem;
    color: var(--text-color);
}

.promo-stock-left {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

@media (max-width: 992px) {
    .promo-stock-bar {
        flex-direction: column;
        align-items: flex-start;
    }
}

.currency-toggle {
    cursor: pointer;
    user-select: none;
    pointer-events: auto;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.75rem;
    padding: 0.35rem 0.6rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background: rgba(59, 130, 246, 0.12);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: var(--primary-color);
    transition: all var(--transition-base);
}

.currency-toggle:hover {
    background: rgba(59, 130, 246, 0.18);
    border-color: rgba(59, 130, 246, 0.35);
}

/* (removed legacy promo color swatch styling) */

@media (max-width: 992px) {
    .promo-extra-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== ANIMACIJE ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.slide-in {
    animation: slideIn 0.5s ease-out;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .result-columns-wrapper {
        grid-template-columns: 1fr;
    }

    .result-breakdown-row {
        grid-template-columns: minmax(0, 1fr);
        gap: 0.15rem;
    }

    .result-breakdown-value {
        text-align: left;
    }

    .result-breakdown-meta,
    .result-breakdown-summary,
    .result-breakdown-footer,
    .result-margin-row {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.25rem;
    }

    .container {
        padding: 1.5rem 1rem;
    }
}

@media (max-width: 768px) {
    .result-breakdown {
        font-size: 0.75rem;
        gap: 0.35rem;
    }

    .result-margin-input {
        width: 88px;
    }

    .main-header h1 {
        font-size: 1.5rem;
    }

    .card {
        padding: 1.5rem;
    }

    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.875rem;
    }
}

/* ===== DARK MODE SPECIFICS ===== */
[data-theme="dark"] .card {
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23e2e8f0'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2.5' d='M6 9l6 6 6-6'%3E%3C/path%3E%3C/svg%3E");
    background-color: rgba(15, 23, 42, 0.8);
    color: #e2e8f0;
    border-color: rgba(148, 163, 184, 0.3);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), 0 8px 18px rgba(0, 0, 0, 0.35);
}

[data-theme="dark"] select:hover {
    border-color: rgba(96, 165, 250, 0.7);
}

[data-theme="dark"] select:focus {
    border-color: rgba(99, 102, 241, 0.7);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

[data-theme="dark"] select,
[data-theme="dark"] .form-select {
    background-attachment: initial;
    background-repeat: no-repeat;
}

[data-theme="dark"] .form-select,
[data-theme="dark"] select {
    color: var(--text-color);
}

[data-theme="dark"] select option {
    background: #0f172a;
    color: #e5eaf3;
}

[data-theme="dark"] input::placeholder,
[data-theme="dark"] textarea::placeholder {
    color: #7f8aa3;
}

[data-theme="dark"] .text-secondary {
    color: #9aa4b2 !important;
}

[data-theme="dark"] .result-column {
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .result-column:hover {
    border-color: var(--primary-color);
}

[data-theme="dark"] .result-box,
[data-theme="dark"] .result-column,
[data-theme="dark"] .promo-extra-card {
    background: rgba(15, 23, 42, 0.7);
    border-color: rgba(148, 163, 184, 0.2);
}

[data-theme="dark"] .result-header h4,
[data-theme="dark"] .result-column-header,
[data-theme="dark"] .result-section-title {
    color: #e2e8f0;
}

[data-theme="dark"] .result-column-value {
    color: #f8fafc;
}

[data-theme="dark"] .result-column-sub,
[data-theme="dark"] .result-header,
[data-theme="dark"] .action-bar {
    color: #cbd5f5;
    border-color: rgba(148, 163, 184, 0.25);
}

[data-theme="dark"] .bg-light {
    background: rgba(15, 23, 42, 0.7) !important;
    border-color: rgba(148, 163, 184, 0.25) !important;
    color: #e2e8f0;
}

[data-theme="dark"] .text-muted {
    color: #cbd5f5 !important;
}

[data-theme="dark"] .form-check-label,
[data-theme="dark"] .form-label,
[data-theme="dark"] label {
    color: #e2e8f0;
}

[data-theme="dark"] .result-box,
[data-theme="dark"] .result-row,
[data-theme="dark"] .result-row span,
[data-theme="dark"] .result-row strong {
    color: #e2e8f0;
}

[data-theme="dark"] .result-row .text-muted {
    color: #cbd5f5 !important;
}

[data-theme="dark"] .identical-offer-alert {
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(148, 163, 184, 0.25);
    color: #e2e8f0;
}

[data-theme="dark"] .identical-offer-alert strong {
    color: #f8fafc;
}

[data-theme="dark"] .identical-offer-alert .badge {
    color: #fff;
}

[data-theme="dark"] .form-control:disabled,
[data-theme="dark"] .form-select:disabled,
[data-theme="dark"] input:disabled,
[data-theme="dark"] textarea:disabled {
    background: rgba(15, 23, 42, 0.7);
    color: #e2e8f0;
    border-color: rgba(148, 163, 184, 0.35);
    opacity: 1;
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus,
[data-theme="dark"] input:focus,
[data-theme="dark"] textarea:focus {
    background: rgba(15, 23, 42, 0.6);
    color: #e2e8f0;
    border-color: rgba(99, 102, 241, 0.7);
    box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, 0.2);
}

[data-theme="dark"] select:focus {
    background: rgba(15, 23, 42, 0.6);
    color: #e2e8f0;
}

[data-theme="dark"] .form-check-input {
    background-color: rgba(15, 23, 42, 0.7);
    border-color: rgba(148, 163, 184, 0.45);
}

[data-theme="dark"] .form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* ===== ADMIN PANEL STILOVI ===== */

/* Tab Navigation */
.tab-nav {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: nowrap;
    overflow-x: auto;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
    width: 100%;
    -webkit-overflow-scrolling: touch;
}

.tab-content {
    padding-top: 0.5rem;
}

.tab-pane .card > .row {
    background: rgba(93, 162, 255, 0.06);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem;
}

[data-theme="dark"] .tab-pane .card > .row {
    background: rgba(124, 123, 255, 0.12);
}

.tab-pane .card > .row + * {
    margin-top: 1rem;
}

.form-label::after {
    content: '';
}

.form-label {
    position: relative;
}

.form-label[data-chip]::after {
    content: attr(data-chip);
    margin-left: 0.4rem;
    padding: 0.12rem 0.45rem;
    border-radius: 999px;
    font-size: 0.65rem;
    color: var(--text-muted);
    background: rgba(93, 162, 255, 0.12);
    border: 1px solid rgba(93, 162, 255, 0.25);
}

.unit-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    padding: 0.12rem 0.45rem;
    border-radius: 999px;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
    background: rgba(93, 162, 255, 0.12);
    border: 1px solid rgba(93, 162, 255, 0.25);
    cursor: pointer;
    user-select: none;
    transition: all var(--transition-base);
}

.unit-pill:hover {
    color: var(--text-color);
    border-color: rgba(93, 162, 255, 0.45);
    background: rgba(93, 162, 255, 0.18);
}

.unit-pill.is-active {
    color: #f8fafc;
    border-color: var(--text-color);
    background: var(--text-color);
    box-shadow: none;
}

[data-theme="dark"] .unit-pill.is-active {
    color: #e5eaf3;
    border-color: var(--input-bg);
    background: var(--input-bg);
}

.unit-pill--static {
    cursor: default;
}

.lf-unit-group {
    display: inline-flex;
    gap: 0.4rem;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
}

.form-label .lf-unit-group {
    margin-top: -1px;
}

.section-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.form-control + .unit-hint,
.form-select + .unit-hint {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    margin-top: 0.35rem;
    font-size: 0.7rem;
    color: var(--text-muted);
}

.action-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: space-between;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
    margin-top: 1rem;
}

.result-box .btn {
    border-radius: 999px;
}

.offer-plain-panel {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--card-bg);
    padding: 0.9rem;
}

.offer-plain-controls {
    border: 1px solid rgba(93, 162, 255, 0.24);
    border-radius: var(--radius-md);
    background: linear-gradient(180deg, rgba(93, 162, 255, 0.07), rgba(93, 162, 255, 0.02));
    padding: 0.8rem;
    margin-bottom: 0.9rem;
}

.offer-plain-label {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
    color: var(--text-muted);
}

.offer-inline-checks,
.offer-note-checks {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    flex-wrap: wrap;
}

.offer-inline-checks label,
.offer-note-checks label {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.78rem;
    color: var(--text-color);
}

.offer-inline-checks input,
.offer-note-checks input {
    margin: 0;
}

.offer-plain-controls .form-select.form-select-sm,
.offer-plain-controls .form-control.form-control-sm {
    height: 42px;
    min-height: 42px;
    padding-top: 0.45rem;
    padding-bottom: 0.45rem;
}

.offer-check-item {
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 0.3rem 0.65rem;
}

.offer-plain-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.65rem;
    flex-wrap: wrap;
}

.offer-plain-title {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.offer-plain-text {
    font-family: inherit;
    font-size: 0.88rem;
    line-height: 1.52;
    min-height: 260px;
    padding: 0.9rem;
    white-space: normal;
    overflow: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.72);
}

.offer-plain-line {
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
}

.offer-plain-line + .offer-plain-line {
    margin-top: 0.18rem;
}

.offer-plain-line--lead {
    margin-top: 0.25rem;
    margin-bottom: 0.2rem;
}

.offer-plain-line--spacer {
    min-height: 0.7rem;
}

.offer-plain-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.offer-sync-status {
    font-size: 0.74rem;
    color: var(--text-muted);
    opacity: 0;
    transform: translateY(2px);
    transition: opacity 0.18s ease, transform 0.18s ease;
    white-space: nowrap;
}

.offer-sync-status.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 992px) {
    .offer-plain-actions {
        width: 100%;
        justify-content: flex-end;
    }
}

[data-theme="dark"] .offer-check-item {
    background: rgba(15, 23, 42, 0.85);
    border-color: rgba(148, 163, 184, 0.35);
}

[data-theme="dark"] .offer-plain-controls {
    border-color: rgba(148, 163, 184, 0.35);
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.16), rgba(99, 102, 241, 0.04));
}

[data-theme="dark"] .offer-plain-text {
    background: rgba(15, 23, 42, 0.82);
    border-color: rgba(148, 163, 184, 0.35);
}

.result-header h4 {
    font-size: 0.98rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.result-header {
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

/* ===== Calculator Modal (Soft Header) ===== */
body:not(.admin-body) .modal-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

body:not(.admin-body) .soft-modal-header {
    background: linear-gradient(135deg, rgba(93, 162, 255, 0.12), rgba(99, 102, 241, 0.08));
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.25rem;
}

body:not(.admin-body) .soft-modal-header .modal-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-color);
}

body:not(.admin-body) .soft-modal-header .btn-close {
    border-radius: 10px;
    border: 1px solid var(--border-color);
    padding: 0.35rem;
}

[data-theme="dark"] body:not(.admin-body) .modal-content {
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] body:not(.admin-body) .soft-modal-header {
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.08), rgba(99, 102, 241, 0.12));
}

body:not(.admin-body) .modal-body {
    padding: 1.2rem 1.25rem;
}

body:not(.admin-body) .modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 0.85rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.6rem;
}

body:not(.admin-body) .modal-body .form-group label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

body:not(.admin-body) .modal-body .form-control,
body:not(.admin-body) .modal-body .form-select,
body:not(.admin-body) .modal-body textarea,
body:not(.admin-body) .modal-body select {
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--input-bg);
    color: var(--text-color);
    padding: 0.55rem 0.7rem;
    font-size: 0.92rem;
}

.calculator-help-modal-body {
    display: grid;
    gap: 0.75rem;
}

.calculator-help-intro {
    display: grid;
    gap: 0.45rem;
    padding: 0.8rem 0.9rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(93, 162, 255, 0.22);
    background: linear-gradient(180deg, rgba(93, 162, 255, 0.09), rgba(93, 162, 255, 0.03));
}

.calculator-help-lead {
    margin: 0;
    color: var(--text-color);
    line-height: 1.6;
}

.calculator-help-badge {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    padding: 0.3rem 0.65rem;
    border-radius: 999px;
    background: rgba(91, 141, 255, 0.12);
    color: var(--text-muted);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.calculator-help-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.5rem;
    margin-bottom: 0.65rem;
}

.calculator-help-stat {
    display: grid;
    gap: 0.1rem;
    padding: 0.55rem 0.65rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: rgba(91, 141, 255, 0.06);
}

.calculator-help-stat-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-color);
}

.calculator-help-stat-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.calculator-help-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.calculator-help-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.5rem;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--input-bg);
    color: var(--text-color);
    font-size: 0.72rem;
}

.calculator-help-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 0.75rem;
}

.calculator-help-section {
    padding: 0.75rem 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--card-bg);
}

.calculator-help-section h4 {
    margin: 0 0 0.55rem;
    font-size: 0.82rem;
    font-weight: 700;
}

.calculator-help-grid {
    display: grid;
    gap: 0.45rem;
}

.calculator-help-row {
    display: grid;
    gap: 0.22rem;
    padding: 0.5rem 0.6rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--input-bg);
}

.calculator-help-row-main {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.7rem;
}

.calculator-help-row-label {
    color: var(--text-muted);
    font-size: 0.74rem;
}

.calculator-help-row-value {
    color: var(--text-color);
    font-size: 0.8rem;
    text-align: right;
}

.calculator-help-row-source {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.68rem;
    line-height: 1.35;
    color: var(--text-muted);
}

.calculator-help-section ul {
    margin: 0;
    padding-left: 1.1rem;
    color: var(--text-color);
}

.calculator-help-formula-list {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--text-color);
    font-size: 0.78rem;
    line-height: 1.45;
}

.calculator-help-section li + li {
    margin-top: 0.3rem;
}

.calculator-help-formula {
    background: rgba(255, 193, 7, 0.08);
}

.calculator-help-formula p {
    margin: 0;
    line-height: 1.6;
    color: var(--text-color);
}

@media (max-width: 991px) {
    .calculator-help-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .calculator-help-stats {
        grid-template-columns: 1fr;
    }

    .calculator-help-row-main {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.15rem;
    }

    .calculator-help-row-value {
        text-align: left;
    }
}


.tab-btn {
    padding: 0.45rem 1rem;
    border: none;
    background: none;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-muted);
    border-radius: 999px;
    transition: all 0.2s;
    font-size: 0.85rem;
    white-space: nowrap;
    flex-shrink: 0;
    border: 1px solid transparent;
}

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

.tab-btn.active {
    color: var(--primary-color);
    background-color: rgba(91, 141, 255, 0.12);
    border: 1px solid rgba(91, 141, 255, 0.35);
}

/* Section Title */
.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Admin Tables */
.admin-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-bottom: 1rem;
}

.admin-table th {
    background-color: rgba(93, 162, 255, 0.08);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    text-align: left;
}

.admin-table td {
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
    font-size: 0.8rem;
}

.admin-table tr:hover td {
    background-color: rgba(93, 162, 255, 0.08);
}

.admin-table input[type="text"],
.admin-table input[type="number"] {
    font-size: 0.8125rem;
    padding: 0.5rem;
    width: 100%;
    box-sizing: border-box;
}

/* Hidden Utility */
.hidden {
    display: none !important;
}

/* Info Card */
.info-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.info-card h3 {
    margin: 0 0 1rem 0;
    font-size: 1.5rem;
    color: white;
    font-weight: 700;
}

.info-card p {
    margin: 0 0 0.5rem 0;
    opacity: 0.95;
    line-height: 1.6;
}

/* Toast Notifications */
#toast-container {
    position: fixed !important;
    top: 120px !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    z-index: 9999 !important;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
    width: 95%;
    max-width: 700px;
}

.toast {
    background: var(--card-bg);
    padding: 15px 25px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 300px;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    border-left: 4px solid #333;
    pointer-events: auto;
}

.toast.show {
    transform: translateY(0);
}

.toast.success {
    border-left-color: var(--success-color);
}

.toast.error {
    border-left-color: var(--danger-color);
}

.toast-icon {
    font-size: 1.2rem;
}

.toast.success .toast-icon {
    color: var(--success-color);
}

.toast.error .toast-icon {
    color: var(--danger-color);
}

.toast-message {
    font-size: 0.95rem;
    color: var(--text-color);
    font-weight: 500;
}

/* ===== Custom Toast ===== */
#custom-toast-container {
    position: fixed;
    top: 14px;
    left: 0;
    width: 100%;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 0 16px;
    pointer-events: none;
}

.custom-toast {
    pointer-events: auto;
    background-color: var(--card-bg);
    color: var(--text-color);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    padding: 14px 44px 14px 16px;
    border: 1px solid transparent;
    max-width: 960px;
    width: 100%;
    margin: 0 auto;
    position: relative;
    overflow: visible;
    opacity: 0;
    transform: translate3d(0, calc(-100% - 18px), 0);
    transition: transform 260ms cubic-bezier(0.16, 1, 0.3, 1), opacity 180ms ease-out;
    will-change: transform, opacity;
}

.custom-toast.is-visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.custom-toast.is-leaving {
    opacity: 0;
    transform: translate3d(0, calc(-100% - 18px), 0);
}

.custom-toast--success {
    background: #10b981;
    border-color: #059669;
    color: #ecfdf5;
}

.custom-toast--error {
    background: #ef4444;
    border-color: #dc2626;
    color: #fef2f2;
}

.custom-toast--info {
    background: #3b82f6;
    border-color: #2563eb;
    color: #eff6ff;
}

.custom-toast__content {
    font-size: 0.95rem;
    line-height: 1.4;
}

.custom-toast__close {
    position: absolute;
    top: 10px;
    right: 12px;
    border: 0;
    background: transparent;
    color: inherit;
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    padding: 4px;
}

.custom-toast__close:hover {
    opacity: 0.82;
}

.custom-toast__timer {
    position: absolute;
    left: 0;
    right: 0;
    bottom: -5px;
    height: 2px;
    width: 100%;
    border-radius: 999px;
    opacity: 1;
    transform-origin: left center;
    transform: scaleX(0);
}

.custom-toast__timer.is-running {
    animation-name: toast-timer-fill;
    animation-timing-function: linear;
    animation-fill-mode: forwards;
}

@keyframes toast-timer-fill {
    from {
        transform: scaleX(0);
    }

    to {
        transform: scaleX(1);
    }
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: var(--card-glass);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

#mainNav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mobile-menu-toggle {
    display: none;
}

/* Grid System */
.grid {
    display: grid;
    gap: 1rem;
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-5 {
    grid-template-columns: repeat(5, 1fr);
}

/* Utilities */
.text-right {
    text-align: right;
}

.mt-4 {
    margin-top: 1rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

/* Dark Mode Admin Overrides */
[data-theme="dark"] .tab-nav {
    border-bottom-color: var(--border-color);
}

[data-theme="dark"] .tab-btn {
    color: var(--text-muted);
}

[data-theme="dark"] .tab-btn.active {
    color: #60a5fa;
    background-color: rgba(59, 130, 246, 0.15);
    border-bottom-color: #60a5fa;
}

[data-theme="dark"] .admin-table th {
    background-color: rgba(30, 41, 59, 0.8);
    color: var(--text-muted);
}

[data-theme="dark"] .admin-table tr:hover td {
    background-color: rgba(51, 65, 85, 0.5);
}

[data-theme="dark"] .section-title {
    color: #60a5fa;
}

@media (max-width: 768px) {

    .grid-2,
    .grid-3,
    .grid-4,
    .grid-5 {
        grid-template-columns: 1fr;
    }

    .mobile-menu-toggle {
        display: block;
    }
}

/* ===== UX STABILITY LAYER ===== */
:where(button, .btn, a, input, select, textarea, [role="button"]) {
    -webkit-tap-highlight-color: transparent;
}

:where(button, .btn, a, input, select, textarea, [role="button"]):focus-visible {
    outline: 2px solid rgba(59, 130, 246, 0.7);
    outline-offset: 2px;
}

:where(.btn, button):disabled,
:where(.btn, button)[aria-disabled="true"] {
    opacity: 0.55;
    cursor: not-allowed;
    pointer-events: none;
}

@media (hover: none) {
    .btn:hover {
        transform: none;
        box-shadow: var(--shadow-sm);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
}