/* Existing root and global styles... */

:root {
    /* Base Variables (Light Mode) */
    --bg-gradient-start: #f8fafc;
    --bg-gradient-end: #eef2f7;
    --glass-bg: rgba(255, 255, 255, 0.95);
    --glass-border: #dde3ed;
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --text-main: #0f172a;
    --text-muted: #52637a;
    --accent-glow: rgba(79, 70, 229, 0.06);

    /* Auth Specific (Light) */
    --auth-form-bg: #ffffff;
    --auth-input-bg: #f8fafc;
    --auth-input-border: #dde3ed;
    --auth-label-color: #52637a;
    --auth-title-color: #1e293b;

    /* Modal / Card */
    --card-bg: #ffffff;
    --modal-overlay: rgba(15, 23, 42, 0.45);
    --modal-input-bg: #f8fafc;
    --modal-input-border: #dde3ed;
    --modal-input-color: #0f172a;

    /* UI Elements */
    --input-bg: #ffffff;
    --input-border: #dde3ed;
    --table-header-bg: #f1f5f9;
    --table-header-color: #64748b;
    --table-row-hover: rgba(99, 102, 241, 0.04);
    --table-section-bg: #f1f5f9;
    --read-only-bg: #f1f5f9;
    --toggle-bg: #f8fafc;
    --toggle-border: #cbd5e1;
    --toggle-color: #64748b;
    --toggle-active-bg: var(--btn-primary-bg);
    --toggle-active-color: #ffffff;
    --btn-primary-bg: linear-gradient(135deg, #6366f1, #8b5cf6);
    --btn-primary-hover: linear-gradient(135deg, #4f46e5, #7c3aed);
    --tab-active-border: #4f46e5;
    --avatar-bg: #0f172a;
    --avatar-color: #ffffff;
    --focus-ring: rgba(99, 102, 241, 0.2);
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.10);

    /* Calendar Vars */
    --calendar-selected-bg: var(--primary-color);
    --calendar-range-bg: #f1f5f9;

    --font-family: 'Inter', sans-serif;
}

[data-theme="dark"] {
    /* Base Variables (Dark Mode) */
    --bg-gradient-start: #020204;
    --bg-gradient-end: #0c0c10;
    --glass-bg: rgba(22, 22, 28, 0.75);
    --glass-border: rgba(255, 255, 255, 0.07);
    --primary-color: #fafafa;
    --primary-hover: #e4e4e7;
    --text-main: #f4f4f5;
    --text-muted: #a1a1aa;
    --accent-glow: rgba(255, 255, 255, 0.04);

    /* Auth Specific (Dark) */
    --auth-form-bg: rgba(255, 255, 255, 0.025);
    --auth-input-bg: #111115;
    --auth-input-border: #2a2a30;
    --auth-label-color: #a1a1aa;
    --auth-title-color: #f4f4f5;

    /* Modal / Card */
    --card-bg: #18181d;
    --modal-overlay: rgba(0, 0, 0, 0.7);
    --modal-input-bg: #111115;
    --modal-input-border: #2a2a30;
    --modal-input-color: #f4f4f5;

    /* UI Elements */
    --input-bg: #111115;
    --input-border: #2a2a30;
    --table-header-bg: #16161a;
    --table-header-color: #a1a1aa;
    --table-row-hover: rgba(255, 255, 255, 0.025);
    --table-section-bg: #16161a;
    --read-only-bg: #16161a;
    --toggle-bg: #18181d;
    --toggle-border: #2a2a30;
    --toggle-color: #a1a1aa;
    --toggle-active-bg: linear-gradient(135deg, #6366f1, #8b5cf6);
    --toggle-active-color: #ffffff;
    --btn-primary-bg: linear-gradient(135deg, #818cf8, #a78bfa);
    --btn-primary-hover: linear-gradient(135deg, #6366f1, #8b5cf6);
    --tab-active-border: #f4f4f5;
    --avatar-bg: #27272a;
    --avatar-color: #f4f4f5;
    --focus-ring: rgba(129, 140, 248, 0.25);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.5);

    /* Calendar Vars */
    --calendar-selected-bg: var(--toggle-active-bg);
    --calendar-range-bg: #27272a;
}

/* Flatpickr Dark Mode Overrides */
[data-theme="dark"] .flatpickr-day {
    background: transparent !important;
    color: var(--text-main) !important;
    border: 1px solid var(--glass-border) !important;
}

[data-theme="dark"] .flatpickr-day:hover,
[data-theme="dark"] .flatpickr-day:focus {
    background: var(--table-row-hover) !important;
    border-color: var(--table-row-hover) !important;
}

[data-theme="dark"] .flatpickr-day.inRange,
[data-theme="dark"] .flatpickr-day.prevMonthDay.inRange,
[data-theme="dark"] .flatpickr-day.nextMonthDay.inRange,
[data-theme="dark"] .flatpickr-day.today.inRange,
[data-theme="dark"] .flatpickr-day.prevMonthDay.today.inRange,
[data-theme="dark"] .flatpickr-day.nextMonthDay.today.inRange {
    background: #27272a !important;
    /* Tailwind Zinc 800 */
    border-color: #27272a !important;
    box-shadow: -5px 0 0 #27272a, 5px 0 0 #27272a !important;
    color: var(--text-main) !important;
}

[data-theme="dark"] .flatpickr-day.selected,
[data-theme="dark"] .flatpickr-day.startRange,
[data-theme="dark"] .flatpickr-day.endRange,
[data-theme="dark"] .flatpickr-day.selected.inRange,
[data-theme="dark"] .flatpickr-day.startRange.inRange,
[data-theme="dark"] .flatpickr-day.endRange.inRange {
    background: var(--toggle-active-bg) !important;
    border-color: transparent !important;
    color: #ffffff !important;
}

[data-theme="dark"] .flatpickr-months .flatpickr-prev-month,
[data-theme="dark"] .flatpickr-months .flatpickr-next-month {
    fill: var(--text-main) !important;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
    background-attachment: fixed;
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;

    /* Security: Prevent text/image selection and dragging */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-user-drag: none;
}

/* Allow text selection ONLY in input fields and textareas */
input,
textarea {
    -webkit-user-select: auto;
    -moz-user-select: auto;
    -ms-user-select: auto;
    user-select: auto;
}

.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0 30px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    /* Solid Black */
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    height: 32px;
    width: auto;
    border-radius: 4px;
    /* Optional slight rounding */
}

.avatar {
    width: 40px;
    height: 40px;
    background: var(--avatar-bg, #0f172a);
    color: var(--avatar-color, #ffffff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--shadow-sm);
}

/* Main Content */
.page-header {
    margin-bottom: 30px;
}

.page-header h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--text-main);
    letter-spacing: -1.5px;
    line-height: 1.1;
}

.page-header p {
    color: var(--text-muted);
    font-size: 1.125rem;
    font-weight: 400;
}

/* Glass Panel Utility */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

/* Controls Section - Updated Layout */
.tabs {
    display: flex;
    gap: 32px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 16px;
    margin-bottom: 24px;
}

.tab {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.95rem;
    padding: 8px 0;
    cursor: pointer;
    font-weight: 500;
    position: relative;
    transition: all 0.2s;
}

.tab:hover {
    color: var(--text-main);
}

.tab.active {
    color: var(--tab-active-border);
    font-weight: 700;
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: -17px;
    /* Align with border-bottom of tabs */
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--tab-active-border);
    border-radius: 3px 3px 0 0;
}

/* Form Grid */
.form-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.field-group {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.three-col .field-group {
    flex: 1 1 30%;
    /* Approx 1/3 width */
}

.four-col .field-group {
    flex: 1 1 22%;
    /* Approx 1/4 width */
}

.five-col .field-group {
    flex: 1 1 18%;
    /* Approx 1/5 width */
}

.two-col-mixed .field-group:first-child {
    flex: 0 1 300px;
    /* Decay rate takes less space */
}

.two-col-mixed .field-group:last-child {
    flex: 1;
}

.form-row label {
    display: block;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 6px;
    font-weight: 500;
}

.form-row label.required::before {
    content: '* ';
    color: #ef4444;
    /* Red asterisk */
}

/* Inputs */
.input-premium {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    padding: 8px 12px;
    color: var(--text-main);
    font-family: var(--font-family);
    font-size: 0.9rem;
    transition: all 0.2s;
    height: 38px;
}

/* Toss Invest Style Inputs */
.toss-list-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
    padding: 16px 0;
}

.toss-list-row:last-child {
    border-bottom: none;
}

.toss-label {
    display: flex;
    flex-direction: column;
    color: var(--text-main);
    font-size: 0.95rem;
    font-weight: 500;
}

.toss-label sub {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 400;
    margin-top: 4px;
}

.toss-label.required::before {
    content: '* ';
    color: #ef4444;
    /* Red asterisk */
}

.toss-input-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.toss-input {
    background: transparent;
    border: none;
    text-align: right;
    color: var(--text-main);
    font-family: var(--font-family);
    font-size: 1.1rem;
    font-weight: 600;
    width: 150px;
    padding: 4px;
    transition: all 0.2s;
}

.toss-input:focus {
    outline: none;
    border-bottom: 2px solid var(--btn-primary-bg);
    margin-bottom: -2px;
    /* Prevent layout shift */
}

.toss-unit {
    color: var(--text-muted);
    font-size: 1.1rem;
    font-weight: 600;
}

/* Date Picker Icon Color - Standard formatting for light theme */
input[type="date"]::-webkit-calendar-picker-indicator {
    cursor: pointer;
    /* Default is black, so no filter needed for light theme */
}

.input-premium:focus {
    outline: none;
    border-color: #6366f1;
    box-shadow: 0 0 0 3px var(--focus-ring);
}

/* Model Toggle Group */
.model-toggle-group {
    display: flex;
    gap: 0;
    margin-top: 0.5rem;
}

.model-toggle {
    position: relative;
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--toggle-border);
    background: var(--toggle-bg);
    color: var(--toggle-color);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.model-toggle:first-child {
    border-radius: 6px 0 0 6px;
}

.model-toggle:last-child {
    border-radius: 0 6px 6px 0;
}

.model-toggle.active {
    background: var(--toggle-active-bg);
    border-color: transparent;
    color: var(--toggle-active-color);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
    z-index: 1;
    transform: translateY(-1px);
}

/* Complex Inputs */
.date-range-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.date-range-group .input-premium {
    width: 140px;
}

.date-range-group .range-sep {
    color: var(--text-muted);
}

.input-with-unit {
    position: relative;
    display: flex;
    align-items: center;
}

.input-with-unit .input-premium {
    padding-right: 32px;
}

.input-with-unit .unit {
    position: absolute;
    right: 12px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.field-hint {
    margin-top: 6px;
    font-size: 0.75rem;
    color: var(--text-muted);
    /* Changed from red to gray */
    opacity: 0.8;
}

/* Result Display */
.result-display {
    align-items: flex-end;
    /* Align to right/bottom visually if desired, or keep left */
}

.value-highlight {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    padding-top: 4px;
}


/* Action Bar */
.action-bar {
    display: flex;
    justify-content: flex-end;
    gap: 16px;
    margin-top: 16px;
    border-top: 1px solid var(--glass-border);
    padding-top: 24px;
}

.btn-primary,
.btn-secondary {
    padding: 10px 24px;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--btn-primary-bg);
    color: #ffffff;
    border: none;
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.2);
}

.btn-primary:hover {
    background: var(--btn-primary-hover);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
}

.btn-secondary:not(.active):hover {
    border-color: var(--text-main);
    color: var(--text-main);
}

.btn-secondary.active {
    background: var(--btn-primary-bg);
    color: #ffffff;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

.btn-secondary.active:hover {
    background: var(--btn-primary-hover);
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
    transform: translateY(-1px);
}

/* Chart Section */
.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 20px;
}

.chart-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-muted);
}

.chart-summary {
    display: flex;
    gap: 40px;
}

.summary-item {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.summary-item .label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.summary-item .value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-main);
}

.chart-container {
    position: relative;
    height: 600px;
    width: 100%;
}

/* Detailed Data Table Section */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-export {
    background-color: var(--btn-primary-bg);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

.table-container {
    width: 100%;
    overflow-x: auto;
    max-height: 800px;
    /* Scrollable if too long */
    overflow-y: auto;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    color: var(--text-main);
    min-width: 800px;
    /* Ensure generic width on small screens */
}

.data-table th {
    background-color: var(--table-header-bg);
    color: var(--table-header-color);
    font-weight: 600;
    text-align: left;
    padding: 12px 16px;
    position: sticky;
    top: 0;
    z-index: 10;
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--glass-border);
}

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

.data-table tr:hover td {
    background-color: var(--table-row-hover);
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}

.text-success {
    color: #22c55e;
    /* Green 500 */
}

.text-danger {
    color: #ef4444;
    /* Red 500 */
}

/* DNU Table Styles */
.dnu-entry-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-bottom: 20px;
}

.dnu-entry-table th,
.dnu-col-header th {
    background: var(--table-header-bg);
    padding: 12px 8px;
    text-align: left;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--glass-border);
    white-space: nowrap;
}

.dnu-entry-table td {
    padding: 12px 8px;
    border-bottom: 1px solid var(--glass-border);
}

.dnu-section-header td {
    background: var(--table-section-bg);
    font-weight: 700;
    color: var(--primary-color);
    padding: 12px 14px;

    /* Spacing between sections */
    border-top: 30px solid transparent;
    background-clip: padding-box;
}

/* Remove top spacing for the very first section header if desired, 
   but having it provides nice breathing room from the top tabs. 
   We will keep it or optional: 
   #section-1-body .dnu-section-header td { border-top: none; }
   Let's keep it for consistent spacing.
*/

.input-compact {
    width: 100%;
    min-width: 60px;
    padding: 6px 8px;
    border: 1px solid var(--glass-border);
    border-radius: 4px;
    font-size: 0.85rem;
    background: var(--input-bg);
    color: var(--text-main);
    text-align: right;
}

.input-compact[readonly] {
    background-color: var(--read-only-bg);
}

.input-compact:focus {
    outline: none;
    border-color: var(--primary-color);
}

.channel-name {
    font-weight: 500;
    font-size: 0.9rem;
}

.dnu-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
}

.input-plain {
    border: none;
    background: transparent;
    color: var(--text-main);
    font-size: 0.9rem;
    font-weight: 500;
    width: 100%;
}

.input-plain:focus {
    outline: none;
    border-bottom: 1px solid var(--primary-color);
}

.btn-add-row {
    background: none;
    border: 1px dashed var(--glass-border);
    color: var(--text-muted);
    font-size: 0.8rem;
    width: 100%;
    padding: 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-add-row:hover {
    background: var(--table-row-hover);
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.section-total-row td,
.grand-total-row td {
    font-weight: 700;
    background: var(--table-section-bg);
    text-align: right;
    padding: 10px 8px;
}

.section-total-row td:first-child,
.grand-total-row td:first-child {
    text-align: left;
}

.grand-total-row td {
    background: var(--glass-border);
    font-size: 0.95rem;
    border-top: 2px solid var(--glass-border);
}

/* --- New Date Picker & Flatpickr Customization --- */

.date-picker-custom {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
}

.range-presets {
    display: flex;
    gap: 8px;
}

.range-presets button {
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 0.85rem;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
    white-space: nowrap;
}

.range-presets button:hover {
    border-color: var(--text-main);
    color: var(--text-main);
}

.range-presets button.active {
    background: var(--toggle-active-bg);
    color: var(--toggle-active-color);
    border-color: transparent;
}

.date-input-wrapper {
    position: relative;
    flex: 1;
}

.date-input-wrapper input {
    padding-right: 40px;
    background-color: var(--input-bg);
    color: var(--text-main);
    cursor: pointer;
}

/* Flatpickr Theme Overrides */
.flatpickr-calendar {
    font-family: var(--font-family) !important;
    border: 1px solid var(--glass-border) !important;
    background: var(--glass-bg) !important;
    backdrop-filter: blur(16px) !important;
    -webkit-backdrop-filter: blur(16px) !important;
    z-index: 9999 !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4) !important;
    border-radius: 12px !important;
    width: max-content !important;
    /* Fix width cut-off with 2 months */
    padding: 10px !important;
}

.flatpickr-day.selected,
.flatpickr-day.startRange,
.flatpickr-day.endRange,
.flatpickr-day.selected.inRange,
.flatpickr-day.startRange.inRange,
.flatpickr-day.endRange.inRange {
    background: var(--calendar-selected-bg) !important;
    border-color: transparent !important;
    color: #ffffff !important;
}

.flatpickr-day.inRange {
    box-shadow: -5px 0 0 var(--calendar-range-bg), 5px 0 0 var(--calendar-range-bg) !important;
    background: var(--calendar-range-bg) !important;
    border-color: var(--calendar-range-bg) !important;
    color: var(--text-main) !important;
}

.flatpickr-months .flatpickr-month {
    color: var(--text-main) !important;
    fill: var(--text-main) !important;
}

.flatpickr-current-month .flatpickr-monthDropdown-months {
    font-weight: 600 !important;
}

.flatpickr-weekday {
    color: var(--text-muted) !important;
    font-weight: 600 !important;
}

/* Model Badges */
.model-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.model-conservative {
    background-color: #f1f5f9;
    color: #64748b;
    border: 1px solid #cbd5e1;
}

.model-base {
    background-color: #eff6ff;
    color: #3b82f6;
    border: 1px solid #bfdbfe;
}

.model-aggressive {
    background-color: #f8fafc;
    color: #0f172a;
    border: 1px solid #475569;
}

/* ─── Dark Mode: Date Picker Calendar Icon ─── */
[data-theme="dark"] input[type="date"]::-webkit-calendar-picker-indicator,
[data-theme="dark"] input[type="datetime-local"]::-webkit-calendar-picker-indicator {
    filter: invert(1) brightness(0.85);
    cursor: pointer;
}

/* ─── Global Modal Utility ─── */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--modal-overlay);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 10000;
    align-items: center;
    justify-content: center;
}

.modal-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 36px;
    max-width: 480px;
    width: 90%;
    box-shadow: var(--shadow-md);
    position: relative;
}

.modal-input {
    width: 100%;
    padding: 11px 14px;
    border-radius: 10px;
    border: 1px solid var(--modal-input-border);
    background: var(--modal-input-bg);
    color: var(--modal-input-color);
    font-size: 0.95rem;
    font-family: var(--font-family);
    outline: none;
    box-sizing: border-box;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.modal-input:focus {
    border-color: #6366f1;
    box-shadow: 0 0 0 3px var(--focus-ring);
}

/* Branded popup for dashboard alerts */
.gp-popup-overlay {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 11000;
    background: rgba(4, 6, 12, 0.58);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.gp-popup-overlay.active {
    display: flex;
}

.gp-popup-card {
    width: min(560px, 100%);
    background: linear-gradient(155deg, rgba(20, 23, 35, 0.95), rgba(11, 13, 22, 0.96));
    border: 1px solid rgba(126, 139, 255, 0.28);
    border-radius: 22px;
    box-shadow: 0 22px 60px rgba(4, 6, 16, 0.62), inset 0 1px 0 rgba(255, 255, 255, 0.06);
    padding: 26px 24px 22px;
}

.gp-popup-accent {
    width: 72px;
    height: 5px;
    border-radius: 999px;
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    margin-bottom: 16px;
}

.gp-popup-warning .gp-popup-accent {
    background: linear-gradient(90deg, #5f6bff, #4f8cff);
}

.gp-popup-title {
    margin: 0;
    color: #f8f9ff;
    font-size: 1.45rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.gp-popup-message {
    margin: 12px 0 0;
    color: #c6cee8;
    font-size: 1rem;
    line-height: 1.6;
    white-space: pre-wrap;
}

.gp-popup-actions {
    margin-top: 26px;
    display: flex;
    gap: 14px;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
}

.gp-popup-btn {
    min-height: 56px;
    min-width: 184px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    border: 1px solid transparent;
    padding: 0 26px;
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.01em;
    text-align: center;
    white-space: nowrap;
    cursor: pointer;
    transition: transform 0.12s ease, box-shadow 0.18s ease, opacity 0.2s ease;
}

.gp-popup-btn:hover {
    transform: translateY(-1px);
}

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

.gp-popup-btn-primary {
    color: #ffffff;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    box-shadow: 0 10px 24px rgba(99, 102, 241, 0.35);
}

.gp-popup-warning .gp-popup-btn-primary {
    background: linear-gradient(135deg, #6264f2, #7f56e9);
    border-color: rgba(245, 247, 255, 0.9);
    box-shadow: 0 0 0 3px rgba(121, 92, 245, 0.72), 0 18px 32px rgba(94, 73, 224, 0.34);
}

.gp-popup-btn-secondary {
    color: #e4e8fb;
    background: linear-gradient(180deg, rgba(32, 37, 58, 0.82), rgba(20, 24, 39, 0.9));
    border-color: rgba(151, 163, 211, 0.28);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

@media (max-width: 640px) {
    .gp-popup-actions {
        justify-content: stretch;
    }

    .gp-popup-btn {
        width: 100%;
        min-width: 0;
    }
}

/* ─── Light Mode Specific ─── */
:root .btn-secondary:not(.active) {
    background: rgba(0, 0, 0, 0.03);
    border-color: var(--glass-border);
    color: var(--text-muted);
}

:root .btn-secondary:not(.active):hover {
    background: rgba(0, 0, 0, 0.06);
    border-color: var(--text-muted);
    color: var(--text-main);
}

/* ─── Dark Mode Specific ─── */
[data-theme="dark"] .btn-secondary:not(.active) {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--glass-border);
    color: var(--text-muted);
}

[data-theme="dark"] .btn-secondary:not(.active):hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text-main);
}

[data-theme="dark"] .glass-panel {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

[data-theme="dark"] select.input-premium option {
    background: var(--input-bg);
    color: var(--text-main);
}

/* ─── Mobile Responsive ─── */

/* Tablet & Small Screens */
@media (max-width: 768px) {
    .glass-panel {
        padding: 16px;
        border-radius: 12px;
        margin-bottom: 16px;
    }

    /* Tabs */
    .tabs {
        gap: 16px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 12px;
    }

    .tab {
        font-size: 0.85rem;
        white-space: nowrap;
    }

    /* Date Range Buttons — wrap to 2×2 grid */
    .date-picker-custom {
        flex-direction: column !important;
        gap: 8px !important;
    }

    .range-preset-buttons {
        flex-wrap: wrap !important;
    }

    .range-preset-buttons .btn-secondary {
        flex: 1 1 calc(50% - 4px);
        min-width: auto;
        text-align: center;
    }

    .date-input-wrapper {
        min-width: 100% !important;
    }

    /* Industry Benchmark Buttons — wrap */
    .range-presets {
        flex-wrap: wrap !important;
    }

    .range-presets .btn-secondary {
        flex: 1 1 calc(33% - 6px);
        min-width: auto;
        text-align: center;
    }

    /* Summary Cards — wrap */
    .chart-header {
        flex-direction: column;
        gap: 12px;
    }

    .chart-summary {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        width: 100%;
    }

    .summary-item {
        align-items: flex-start;
    }

    .summary-item .value {
        font-size: 1.1rem;
    }

    /* Chart */
    .chart-container {
        height: 300px !important;
    }

    /* Data Table — horizontal scroll */
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .data-table {
        min-width: 700px;
    }

    .data-table th,
    .data-table td {
        font-size: 0.8rem;
        padding: 8px 10px;
        white-space: nowrap;
    }

    /* Toss-Style Input Rows */
    .toss-list-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }

    .toss-input-group {
        width: 100%;
    }

    .toss-input {
        width: 100%;
    }

    /* Action Bar */
    .action-bar {
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }

    .action-bar .btn-primary,
    .action-bar .btn-secondary {
        flex: 1 1 auto;
        text-align: center;
        min-width: 100px;
    }

    /* Model Toggle */
    .model-toggle-group {
        flex-wrap: wrap;
    }

    .model-toggle {
        flex: 1;
        text-align: center;
        font-size: 0.8rem;
    }

    /* Value Highlight */
    .value-highlight {
        font-size: 1.6rem !important;
    }

    /* Section Header */
    .section-header {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }

    /* Chart Legend */
    .chart-legend {
        flex-wrap: wrap;
        gap: 12px !important;
        font-size: 0.75rem !important;
    }
}

/* Phone */
@media (max-width: 480px) {
    body {
        padding: 8px;
    }

    .glass-panel {
        padding: 12px;
        border-radius: 10px;
    }

    /* Tabs — scrollable */
    .tabs {
        gap: 12px;
    }

    .tab {
        font-size: 0.8rem;
    }

    /* Date Range — stack all */
    .range-preset-buttons .btn-secondary {
        flex: 1 1 calc(50% - 4px);
        padding: 6px 8px !important;
        font-size: 0.75rem !important;
    }

    /* Industry Benchmarks — 2 per row */
    .range-presets .btn-secondary {
        flex: 1 1 calc(50% - 4px);
        padding: 6px 8px !important;
        font-size: 0.75rem !important;
    }

    /* Summary Cards — single column */
    .chart-summary {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .summary-item .label {
        font-size: 0.65rem;
    }

    .summary-item .value {
        font-size: 0.95rem;
    }

    /* Chart */
    .chart-container {
        height: 250px !important;
    }

    /* Action Bar — stack */
    .action-bar {
        flex-direction: column;
    }

    .action-bar .btn-primary,
    .action-bar .btn-secondary {
        width: 100%;
    }

    /* Value Highlight — smaller */
    .value-highlight {
        font-size: 1.3rem !important;
    }

    /* Buttons */
    .btn-primary,
    .btn-secondary {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
}