/* ========================================
   MUI3 ENHANCEMENT STYLES
   Elevation System + Button Variants + Spacing
   ======================================== */

/* ========== SPACING SYSTEM ========== */
:root {
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 24px;
    --spacing-2xl: 32px;
    --spacing-3xl: 48px;
    
    /* Elevation System */
    --elevation-0: none;
    --elevation-1: 0 2px 4px rgba(0, 0, 0, 0.1);
    --elevation-2: 0 4px 8px rgba(0, 0, 0, 0.12);
    --elevation-3: 0 6px 12px rgba(0, 0, 0, 0.14);
    --elevation-4: 0 8px 16px rgba(0, 0, 0, 0.15);
    --elevation-5: 0 12px 20px rgba(0, 0, 0, 0.2);
}

/* ========== ELEVATION CLASSES ========== */
.elevation-0 { box-shadow: var(--elevation-0) !important; }
.elevation-1 { box-shadow: var(--elevation-1) !important; }
.elevation-2 { box-shadow: var(--elevation-2) !important; }
.elevation-3 { box-shadow: var(--elevation-3) !important; }
.elevation-4 { box-shadow: var(--elevation-4) !important; }
.elevation-5 { box-shadow: var(--elevation-5) !important; }

/* ========== PADDING UTILITIES ========== */
.px-xs { padding-left: var(--spacing-xs); padding-right: var(--spacing-xs); }
.px-sm { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
.px-md { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.px-lg { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
.px-xl { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }

.py-xs { padding-top: var(--spacing-xs); padding-bottom: var(--spacing-xs); }
.py-sm { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-md { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-lg { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-xl { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }
.p-2xl { padding: var(--spacing-2xl); }

/* ========== MARGIN UTILITIES ========== */
.mx-xs { margin-left: var(--spacing-xs); margin-right: var(--spacing-xs); }
.mx-sm { margin-left: var(--spacing-sm); margin-right: var(--spacing-sm); }
.mx-md { margin-left: var(--spacing-md); margin-right: var(--spacing-md); }
.mx-lg { margin-left: var(--spacing-lg); margin-right: var(--spacing-lg); }
.mx-xl { margin-left: var(--spacing-xl); margin-right: var(--spacing-xl); }

.my-xs { margin-top: var(--spacing-xs); margin-bottom: var(--spacing-xs); }
.my-sm { margin-top: var(--spacing-sm); margin-bottom: var(--spacing-sm); }
.my-md { margin-top: var(--spacing-md); margin-bottom: var(--spacing-md); }
.my-lg { margin-top: var(--spacing-lg); margin-bottom: var(--spacing-lg); }
.my-xl { margin-top: var(--spacing-xl); margin-bottom: var(--spacing-xl); }

.m-xs { margin: var(--spacing-xs); }
.m-sm { margin: var(--spacing-sm); }
.m-md { margin: var(--spacing-md); }
.m-lg { margin: var(--spacing-lg); }
.m-xl { margin: var(--spacing-xl); }
.m-2xl { margin: var(--spacing-2xl); }

/* ========== BUTTON VARIANTS ========== */

/* FILLED BUTTON (Default) */
.btn-filled,
.btn-filled-primary {
    background: linear-gradient(135deg, #E72027, #c92a30) !important;
    color: white !important;
    border: none !important;
    box-shadow: var(--elevation-3);
    font-weight: 600;
    transition: all 0.3s ease;
    border-radius: 12px;
    padding: 12px 24px;
    position: relative;
    overflow: hidden;
}

.btn-filled:hover,
.btn-filled-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--elevation-5);
}

.btn-filled:active,
.btn-filled-primary:active {
    transform: translateY(0);
    box-shadow: var(--elevation-2);
}

.btn-filled:disabled,
.btn-filled-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* OUTLINED BUTTON */
.btn-outlined,
.btn-outlined-primary {
    background: transparent !important;
    color: #E72027 !important;
    border: 2px solid #E72027 !important;
    box-shadow: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border-radius: 12px;
    padding: 10px 22px;
}

.btn-outlined:hover,
.btn-outlined-primary:hover {
    background: rgba(231, 32, 39, 0.1) !important;
    box-shadow: var(--elevation-2);
}

.btn-outlined:active,
.btn-outlined-primary:active {
    background: rgba(231, 32, 39, 0.15) !important;
}

.btn-outlined:disabled,
.btn-outlined-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* TEXT BUTTON */
.btn-text,
.btn-text-primary {
    background: transparent !important;
    color: #E72027 !important;
    border: none !important;
    box-shadow: none;
    font-weight: 600;
    transition: all 0.2s ease;
    border-radius: 8px;
    padding: 12px 16px;
}

.btn-text:hover,
.btn-text-primary:hover {
    background: rgba(231, 32, 39, 0.1) !important;
}

.btn-text:active,
.btn-text-primary:active {
    background: rgba(231, 32, 39, 0.2) !important;
}

.btn-text:disabled,
.btn-text-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ICON-ONLY BUTTON */
.btn-icon,
.btn-icon-filled {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, #E72027, #c92a30) !important;
    color: white !important;
    border: none !important;
    box-shadow: var(--elevation-3);
    transition: all 0.3s ease;
    font-size: 20px;
}

.btn-icon:hover,
.btn-icon-filled:hover {
    transform: scale(1.08);
    box-shadow: var(--elevation-5);
}

.btn-icon:active,
.btn-icon-filled:active {
    transform: scale(0.95);
    box-shadow: var(--elevation-2);
}

.btn-icon-outlined {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: transparent !important;
    color: #E72027 !important;
    border: 2px solid #E72027 !important;
    box-shadow: none;
    transition: all 0.3s ease;
    font-size: 20px;
}

.btn-icon-outlined:hover {
    background: rgba(231, 32, 39, 0.1) !important;
}

.btn-icon-outlined:active {
    background: rgba(231, 32, 39, 0.15) !important;
}

/* SECONDARY COLORS */
.btn-success {
    background: linear-gradient(135deg, #2e7d32, #1b5e20) !important;
}

.btn-success:hover {
    box-shadow: 0 6px 16px rgba(46, 125, 50, 0.3);
}

.btn-danger {
    background: linear-gradient(135deg, #b3261e, #8c1d18) !important;
}

.btn-danger:hover {
    box-shadow: 0 6px 16px rgba(179, 38, 30, 0.3);
}

.btn-info {
    background: linear-gradient(135deg, #0288d1, #01579b) !important;
}

.btn-info:hover {
    box-shadow: 0 6px 16px rgba(2, 136, 209, 0.3);
}

/* ========== FORM VALIDATION ========== */

/* Error State */
.form-control.is-invalid,
.form-select.is-invalid {
    border: 2px solid #b3261e !important;
    background-color: rgba(179, 38, 30, 0.05) !important;
}

.form-control.is-invalid:focus,
.form-select.is-invalid:focus {
    border-color: #b3261e !important;
    box-shadow: 0 0 0 0.3rem rgba(179, 38, 30, 0.15) !important;
}

/* Success State */
.form-control.is-valid,
.form-select.is-valid {
    border: 2px solid #2e7d32 !important;
    background-color: rgba(46, 125, 50, 0.05) !important;
}

.form-control.is-valid:focus,
.form-select.is-valid:focus {
    border-color: #2e7d32 !important;
    box-shadow: 0 0 0 0.3rem rgba(46, 125, 50, 0.15) !important;
}

/* Error Message */
.invalid-feedback {
    display: block;
    color: #b3261e;
    font-size: 12px;
    font-weight: 500;
    margin-top: 4px;
}

/* Success Message */
.valid-feedback {
    display: block;
    color: #2e7d32;
    font-size: 12px;
    font-weight: 500;
    margin-top: 4px;
}

/* Helper Text */
.form-text,
.form-hint {
    color: #666;
    font-size: 12px;
    font-weight: 500;
    margin-top: 4px;
}

body.dark-mode .form-text,
body.dark-mode .form-hint {
    color: #999;
}

/* Input Counter */
.input-counter {
    position: absolute;
    right: 12px;
    top: 12px;
    font-size: 12px;
    color: #999;
    font-weight: 500;
}

/* ========== TABLE ENHANCEMENTS ========== */

.table-md3 {
    border-collapse: collapse;
}

.table-md3 thead th {
    background-color: #f5f5f5;
    border-bottom: 1px solid #e0e0e0;
    padding: 12px 16px;
    font-weight: 600;
    font-size: 14px;
    color: #1a1a1a;
}

body.dark-mode .table-md3 thead th {
    background-color: #252525;
    border-bottom-color: #404040;
    color: #e0e0e0;
}

.table-md3 tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid #e0e0e0;
    font-size: 14px;
    color: #1a1a1a;
}

body.dark-mode .table-md3 tbody td {
    border-bottom-color: #404040;
    color: #e0e0e0;
}

.table-md3 tbody tr:hover {
    background-color: #f9f9f9;
    box-shadow: inset 0 0 0 1px #f0f0f0;
}

body.dark-mode .table-md3 tbody tr:hover {
    background-color: #2d2d2d;
    box-shadow: inset 0 0 0 1px #333;
}

.table-md3 tbody tr.selected {
    background-color: rgba(231, 32, 39, 0.1);
}

body.dark-mode .table-md3 tbody tr.selected {
    background-color: rgba(231, 32, 39, 0.2);
}

/* ========== BADGE VARIANTS ========== */

.badge-success {
    background-color: #2e7d32 !important;
    color: white !important;
}

.badge-error,
.badge-danger {
    background-color: #b3261e !important;
    color: white !important;
}

.badge-warning {
    background-color: #f57f17 !important;
    color: white !important;
}

.badge-info {
    background-color: #0288d1 !important;
    color: white !important;
}

.badge-secondary {
    background-color: #666666 !important;
    color: white !important;
}

/* Outlined Badges */
.badge-outlined-success {
    background-color: transparent !important;
    border: 1px solid #2e7d32;
    color: #2e7d32 !important;
}

.badge-outlined-error {
    background-color: transparent !important;
    border: 1px solid #b3261e;
    color: #b3261e !important;
}

.badge-outlined-warning {
    background-color: transparent !important;
    border: 1px solid #f57f17;
    color: #f57f17 !important;
}

.badge-outlined-info {
    background-color: transparent !important;
    border: 1px solid #0288d1;
    color: #0288d1 !important;
}

/* ========== ICON STANDARDIZATION ========== */

/* Icon Sizes */
.icon-xs { font-size: 16px; }
.icon-sm { font-size: 20px; }
.icon-md { font-size: 24px; }
.icon-lg { font-size: 32px; }
.icon-xl { font-size: 48px; }
.icon-2xl { font-size: 64px; }

/* Icon Colors */
.icon-primary { color: #E72027; }
.icon-success { color: #2e7d32; }
.icon-error { color: #b3261e; }
.icon-warning { color: #f57f17; }
.icon-info { color: #0288d1; }
.icon-muted { color: #999; }

body.dark-mode .icon-muted { color: #666; }

/* ========== MUI3 ICON BUTTON CONTAINER ========== */

/* Icon Container Base */
.icon-container {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Sizes */
.icon-container-sm {
    width: 36px;
    height: 36px;
    font-size: 18px;
}

.icon-container-md {
    width: 40px;
    height: 40px;
    font-size: 20px;
}

.icon-container-lg {
    width: 48px;
    height: 48px;
    font-size: 24px;
}

.icon-container-xl {
    width: 56px;
    height: 56px;
    font-size: 28px;
}

/* Filled Variant */
.icon-container.filled {
    background-color: rgba(231, 32, 39, 0.1);
    color: #E72027;
}

.icon-container.filled:hover {
    background-color: rgba(231, 32, 39, 0.2);
    transform: scale(1.08);
}

.icon-container.filled:active {
    background-color: rgba(231, 32, 39, 0.3);
    transform: scale(0.95);
}

/* Outlined Variant */
.icon-container.outlined {
    background-color: transparent;
    color: #E72027;
    border: 2px solid #E72027;
}

.icon-container.outlined:hover {
    background-color: rgba(231, 32, 39, 0.1);
    transform: scale(1.08);
}

.icon-container.outlined:active {
    background-color: rgba(231, 32, 39, 0.2);
    transform: scale(0.95);
}

/* Tonal Variant */
.icon-container.tonal {
    background-color: rgba(231, 32, 39, 0.15);
    color: #b3261e;
}

.icon-container.tonal:hover {
    background-color: rgba(231, 32, 39, 0.25);
    transform: scale(1.08);
}

.icon-container.tonal:active {
    background-color: rgba(231, 32, 39, 0.35);
    transform: scale(0.95);
}

/* Elevated Variant */
.icon-container.elevated {
    background-color: rgba(231, 32, 39, 0.05);
    color: #E72027;
    box-shadow: var(--elevation-2);
}

.icon-container.elevated:hover {
    background-color: rgba(231, 32, 39, 0.1);
    box-shadow: var(--elevation-4);
    transform: translateY(-2px);
}

.icon-container.elevated:active {
    box-shadow: var(--elevation-1);
    transform: translateY(0);
}

/* Subtle Variant */
.icon-container.subtle {
    background-color: transparent;
    color: rgba(231, 32, 39, 0.6);
}

.icon-container.subtle:hover {
    background-color: rgba(231, 32, 39, 0.08);
    color: #E72027;
}

/* Dark Mode Support */
body.dark-mode .icon-container.filled {
    background-color: rgba(231, 32, 39, 0.2);
}

body.dark-mode .icon-container.filled:hover {
    background-color: rgba(231, 32, 39, 0.3);
}

body.dark-mode .icon-container.outlined {
    border-color: #ff6b6b;
    color: #ff6b6b;
}

body.dark-mode .icon-container.outlined:hover {
    background-color: rgba(255, 107, 107, 0.1);
}

body.dark-mode .icon-container.tonal {
    background-color: rgba(255, 107, 107, 0.2);
    color: #ff6b6b;
}

body.dark-mode .icon-container.tonal:hover {
    background-color: rgba(255, 107, 107, 0.3);
}

body.dark-mode .icon-container.elevated {
    background-color: rgba(255, 107, 107, 0.08);
    box-shadow: var(--elevation-3);
}

body.dark-mode .icon-container.elevated:hover {
    background-color: rgba(255, 107, 107, 0.15);
    box-shadow: var(--elevation-5);
}

body.dark-mode .icon-container.subtle {
    color: rgba(255, 107, 107, 0.6);
}

body.dark-mode .icon-container.subtle:hover {
    background-color: rgba(255, 107, 107, 0.1);
    color: #ff6b6b;
}

/* Disabled State */
.icon-container:disabled,
.icon-container.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.icon-container:disabled:hover,
.icon-container.disabled:hover {
    transform: none;
}

/* ========== ICON STATE CLASSES ========== */

/* Icon Loading/Spinning */
.icon-spin {
    animation: mdIconSpin 1s linear infinite;
}

.icon-pulse {
    animation: mdIconPulse 1.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.icon-bounce {
    animation: mdIconBounce 1s cubic-bezier(0.36, 0, 0.66, -0.56) infinite;
}

/* Icon Colors with Container */
.icon-container.primary {
    background-color: rgba(231, 32, 39, 0.1);
    color: #E72027;
}

.icon-container.success {
    background-color: rgba(46, 125, 50, 0.1);
    color: #2e7d32;
}

.icon-container.error {
    background-color: rgba(179, 38, 30, 0.1);
    color: #b3261e;
}

.icon-container.warning {
    background-color: rgba(245, 127, 23, 0.1);
    color: #f57f17;
}

.icon-container.info {
    background-color: rgba(2, 136, 209, 0.1);
    color: #0288d1;
}

/* Icon Badge Overlay */
.icon-badge {
    position: relative;
}

.icon-badge::after {
    content: attr(data-badge);
    position: absolute;
    top: -4px;
    right: -4px;
    background-color: #E72027;
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* ========== ICON ANIMATIONS ========== */

@keyframes mdIconSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes mdIconPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

@keyframes mdIconBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* ========== ICON TEXT COMBINATION ========== */

.icon-text {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.icon-text .icon {
    flex-shrink: 0;
}

.icon-text.gap-sm { gap: 4px; }
.icon-text.gap-md { gap: 12px; }
.icon-text.gap-lg { gap: 16px; }

/* Icon before text */
.icon-text-before .icon {
    order: -1;
}

/* Icon stacked vertically */
.icon-stack {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

/* ========== CARD ENHANCEMENTS ========== */

.card-md3 {
    border: 1px solid #e0e0e0;
    border-radius: 20px;
    box-shadow: var(--elevation-1);
    transition: all 0.2s ease;
}

body.dark-mode .card-md3 {
    border-color: #404040;
    background-color: #252525;
}

.card-md3:hover {
    box-shadow: var(--elevation-3);
}

.card-md3.clickable {
    cursor: pointer;
}

.card-md3.clickable:active {
    transform: translateY(-2px);
    box-shadow: var(--elevation-4);
}

/* ========== MODAL ENHANCEMENTS ========== */

.modal-content {
    border-radius: 20px;
    border: none;
}

.modal-backdrop {
    backdrop-filter: blur(2px);
}

.modal.show .modal-dialog {
    animation: mdPopIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes mdPopIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* ========== CHIP COMPONENT ========== */

.chip {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    background-color: #f0f0f0;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    color: #1a1a1a;
    gap: 6px;
    transition: all 0.2s ease;
}

body.dark-mode .chip {
    background-color: #404040;
    color: #e0e0e0;
}

.chip .chip-icon {
    font-size: 16px;
}

.chip.filled-primary {
    background-color: rgba(231, 32, 39, 0.15);
    color: #E72027;
}

.chip.filled-success {
    background-color: rgba(46, 125, 50, 0.15);
    color: #2e7d32;
}

/* ========== DIVIDER ========== */

.divider {
    height: 1px;
    background-color: #e0e0e0;
    margin: var(--spacing-lg) 0;
}

body.dark-mode .divider {
    background-color: #404040;
}

.divider-text {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    color: #999;
    font-size: 14px;
    font-weight: 500;
}

.divider-text::before,
.divider-text::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: #e0e0e0;
}

body.dark-mode .divider-text::before,
body.dark-mode .divider-text::after {
    background-color: #404040;
}

/* ========== TRANSITIONS ========== */

.transition-fast {
    transition: all 0.15s ease;
}

.transition-normal {
    transition: all 0.3s ease;
}

.transition-smooth {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}