/**
 * ===============================================================================
 * BALAM AI - Modal Component Styles
 * ===============================================================================
 *
 * Comprehensive modal styling with:
 * - Base overlay and container styles
 * - Size variants (sm, md, lg, xl, full)
 * - Header, body, footer sections
 * - Close button with animation
 * - Open/close animations
 * - Responsive behavior
 * - Focus states for accessibility
 *
 * @requires shared-variables.css
 * @author Balam AI Team
 * @version 1.0.0
 * ===============================================================================
 */

/* ===============================================================================
   CSS Variables - Modal-specific tokens
   =============================================================================== */

:root {
    /* Modal colors - Dark theme */
    --balam-modal-bg: #0f0f17;
    --balam-modal-card: #1a1a24;
    --balam-modal-card-hover: #1f1f2a;
    --balam-modal-border: #2d2d3a;
    --balam-modal-border-light: #3d3d4a;
    --balam-modal-input: #15151d;

    /* Modal text colors */
    --balam-modal-text: #ffffff;
    --balam-modal-text-secondary: #e5e7eb;
    --balam-modal-text-muted: #9ca3af;
    --balam-modal-text-dim: #6b7280;

    /* Modal gradients */
    --balam-modal-gradient-primary: linear-gradient(135deg, #4361ee 0%, #3730a3 100%);
    --balam-modal-gradient-surface: linear-gradient(135deg, #1a1a24 0%, #15151d 100%);

    /* Modal shadows */
    --balam-modal-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.6);
    --balam-modal-shadow-glow: 0 0 40px rgba(67, 97, 238, 0.15);

    /* Modal sizing */
    --balam-modal-width-sm: 400px;
    --balam-modal-width-md: 560px;
    --balam-modal-width-lg: 780px;
    --balam-modal-width-xl: 960px;

    /* Modal timing */
    --balam-modal-transition-duration: 0.4s;
    --balam-modal-transition-easing: cubic-bezier(0.4, 0, 0.2, 1);
    --balam-modal-bounce-easing: cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Modal z-index */
    --balam-modal-z-index: 10000;
}


/* ===============================================================================
   Modal Overlay
   =============================================================================== */

.balam-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--balam-modal-z-index);
    padding: 1.5rem;

    /* Hidden by default */
    opacity: 0;
    visibility: hidden;

    /* Transition */
    transition:
        opacity var(--balam-modal-transition-duration) var(--balam-modal-transition-easing),
        visibility var(--balam-modal-transition-duration) var(--balam-modal-transition-easing);
}

/* Visible state */
.balam-modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* Fade out animation class */
.balam-modal-overlay.fade-out {
    opacity: 0;
}


/* ===============================================================================
   Modal Container
   =============================================================================== */

.balam-modal {
    background: var(--balam-modal-bg);
    border-radius: 24px;
    width: 100%;
    max-width: var(--balam-modal-width-md);
    max-height: 92vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--balam-modal-border);
    box-shadow: var(--balam-modal-shadow), var(--balam-modal-shadow-glow);

    /* Initial hidden state */
    transform: scale(0.9) translateY(30px);

    /* Transition */
    transition: transform var(--balam-modal-transition-duration) var(--balam-modal-bounce-easing);
}

/* Visible state */
.balam-modal-overlay.show .balam-modal {
    transform: scale(1) translateY(0);
}

/* Closing animation */
.balam-modal-overlay.fade-out .balam-modal {
    transform: scale(0.95) translateY(20px);
}


/* ===============================================================================
   Modal Size Variants
   =============================================================================== */

.balam-modal.modal-sm {
    max-width: var(--balam-modal-width-sm);
}

.balam-modal.modal-md {
    max-width: var(--balam-modal-width-md);
}

.balam-modal.modal-lg {
    max-width: var(--balam-modal-width-lg);
}

.balam-modal.modal-xl {
    max-width: var(--balam-modal-width-xl);
}

.balam-modal.modal-full {
    max-width: 95vw;
    max-height: 95vh;
}


/* ===============================================================================
   Modal Header
   =============================================================================== */

.balam-modal-header {
    padding: 1.75rem 2rem;
    background: var(--balam-modal-gradient-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

/* Subtle gradient overlay for depth */
.balam-modal-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}

/* Title wrapper */
.balam-modal-title-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
    z-index: 1;
}

/* Header icon */
.balam-modal-icon {
    width: 52px;
    height: 52px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* Title content */
.balam-modal-title-content {
    display: flex;
    flex-direction: column;
}

/* Title */
.balam-modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    margin: 0;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

/* Subtitle */
.balam-modal-subtitle {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    margin: 0.375rem 0 0 0;
    font-weight: 400;
}


/* ===============================================================================
   Close Button
   =============================================================================== */

.balam-modal-close {
    width: 44px;
    height: 44px;
    border: none;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    position: relative;
    z-index: 1;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition:
        background 0.3s var(--balam-modal-transition-easing),
        color 0.3s var(--balam-modal-transition-easing),
        transform 0.3s var(--balam-modal-transition-easing);
}

.balam-modal-close:hover {
    background: rgba(239, 68, 68, 0.4);
    color: white;
    transform: rotate(90deg);
}

.balam-modal-close:active {
    transform: rotate(90deg) scale(0.95);
}

.balam-modal-close:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.balam-modal-close:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}


/* ===============================================================================
   Modal Tabs
   =============================================================================== */

.balam-modal-tabs {
    display: flex;
    background: var(--balam-modal-card);
    border-bottom: 1px solid var(--balam-modal-border);
    padding: 0 2rem;
    gap: 0.5rem;
    flex-shrink: 0;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.balam-modal-tabs::-webkit-scrollbar {
    display: none;
}

.balam-modal-tab {
    padding: 1rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--balam-modal-text-muted);
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
    transition: color 0.2s ease;
}

.balam-modal-tab:hover {
    color: var(--balam-modal-text-secondary);
}

.balam-modal-tab.active {
    color: var(--balam-primary, #4361ee);
}

.balam-modal-tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--balam-primary, #4361ee);
    border-radius: 3px 3px 0 0;
}

.balam-modal-tab i {
    font-size: 0.9rem;
}

.balam-modal-tab:focus {
    outline: none;
}

.balam-modal-tab:focus-visible {
    outline: 2px solid var(--balam-primary, #4361ee);
    outline-offset: -2px;
}


/* ===============================================================================
   Modal Body
   =============================================================================== */

.balam-modal-body {
    padding: 2rem;
    overflow-y: auto;
    flex: 1;
    background: var(--balam-modal-bg);

    /* Custom scrollbar */
    scrollbar-width: thin;
    scrollbar-color: rgba(67, 97, 238, 0.3) transparent;
}

.balam-modal-body::-webkit-scrollbar {
    width: 8px;
}

.balam-modal-body::-webkit-scrollbar-track {
    background: transparent;
}

.balam-modal-body::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--balam-primary, #4361ee), rgba(67, 97, 238, 0.5));
    border-radius: 4px;
}

/* Empty state for modal body */
.balam-modal-body:empty::after {
    content: 'No content';
    display: block;
    text-align: center;
    color: var(--balam-modal-text-muted);
    padding: 3rem;
}


/* ===============================================================================
   Modal Footer
   =============================================================================== */

.balam-modal-footer {
    padding: 1.25rem 2rem;
    background: var(--balam-modal-card);
    border-top: 1px solid var(--balam-modal-border);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    flex-shrink: 0;
}

.balam-modal-footer > * {
    min-width: 0;
}

/* Footer with space between */
.balam-modal-footer.space-between {
    justify-content: space-between;
}

/* Footer with left-aligned content */
.balam-modal-footer.align-left {
    justify-content: flex-start;
}

/* Footer with centered content */
.balam-modal-footer.align-center {
    justify-content: center;
}


/* ===============================================================================
   Modal Sections (for organized content)
   =============================================================================== */

.balam-modal-section {
    background: var(--balam-modal-card);
    border: 1px solid var(--balam-modal-border);
    border-radius: 16px;
    padding: 1.75rem;
    margin-bottom: 1.25rem;
    transition:
        border-color 0.3s ease,
        box-shadow 0.3s ease;
}

.balam-modal-section:last-child {
    margin-bottom: 0;
}

.balam-modal-section:hover {
    border-color: var(--balam-modal-border-light);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* Section header */
.balam-modal-section-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.balam-modal-section-icon {
    width: 44px;
    height: 44px;
    background: rgba(67, 97, 238, 0.12);
    border: 1px solid rgba(67, 97, 238, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--balam-primary, #4361ee);
    font-size: 1.125rem;
    flex-shrink: 0;
}

.balam-modal-section-title {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--balam-modal-text);
    margin: 0;
}

.balam-modal-section-desc {
    font-size: 0.8125rem;
    color: var(--balam-modal-text-muted);
    margin: 0.25rem 0 0 0;
}


/* ===============================================================================
   Modal Buttons
   =============================================================================== */

.balam-modal-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    padding: 0.875rem 1.75rem;
    border-radius: 12px;
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition:
        transform 0.3s var(--balam-modal-transition-easing),
        box-shadow 0.3s var(--balam-modal-transition-easing),
        background 0.3s var(--balam-modal-transition-easing),
        border-color 0.3s var(--balam-modal-transition-easing);
}

/* Shine effect on hover */
.balam-modal-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.balam-modal-btn:hover::before {
    left: 100%;
}

.balam-modal-btn:focus {
    outline: none;
}

.balam-modal-btn:focus-visible {
    outline: 2px solid var(--balam-primary, #4361ee);
    outline-offset: 2px;
}

/* Primary button */
.balam-modal-btn-primary {
    background: var(--balam-modal-gradient-primary);
    color: white;
    box-shadow: 0 6px 20px rgba(67, 97, 238, 0.35);
}

.balam-modal-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(67, 97, 238, 0.45);
}

.balam-modal-btn-primary:active {
    transform: translateY(-1px);
}

.balam-modal-btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Secondary button */
.balam-modal-btn-secondary {
    background: rgba(67, 97, 238, 0.1);
    color: var(--balam-primary, #4361ee);
    border: 1.5px solid rgba(67, 97, 238, 0.3);
}

.balam-modal-btn-secondary:hover {
    background: rgba(67, 97, 238, 0.2);
    border-color: rgba(67, 97, 238, 0.5);
    transform: translateY(-2px);
}

/* Danger button */
.balam-modal-btn-danger {
    background: rgba(239, 68, 68, 0.08);
    color: #f87171;
    border: 1.5px solid rgba(239, 68, 68, 0.25);
}

.balam-modal-btn-danger:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.4);
    transform: translateY(-2px);
}

/* Ghost button */
.balam-modal-btn-ghost {
    background: transparent;
    color: var(--balam-modal-text-muted);
    border: none;
}

.balam-modal-btn-ghost:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--balam-modal-text);
}

/* Success button */
.balam-modal-btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.35);
}

.balam-modal-btn-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.45);
}

/* Button loading state */
.balam-modal-btn.loading {
    pointer-events: none;
    opacity: 0.8;
}

.balam-modal-btn.loading::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: balam-modal-spinner 0.7s linear infinite;
    margin-left: 0.5rem;
}

@keyframes balam-modal-spinner {
    to {
        transform: rotate(360deg);
    }
}

/* Button sizes */
.balam-modal-btn-sm {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    border-radius: 10px;
}

.balam-modal-btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
    border-radius: 14px;
}


/* ===============================================================================
   Modal Form Elements
   =============================================================================== */

.balam-modal-form-group {
    margin-bottom: 1.25rem;
}

.balam-modal-form-group:last-child {
    margin-bottom: 0;
}

.balam-modal-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--balam-modal-text-secondary);
    margin-bottom: 0.625rem;
}

.balam-modal-label i {
    font-size: 0.8rem;
    color: var(--balam-primary, #4361ee);
    opacity: 0.8;
}

.balam-modal-input {
    width: 100%;
    padding: 0.875rem 1.125rem;
    background: var(--balam-modal-input);
    border: 1.5px solid var(--balam-modal-border);
    border-radius: 12px;
    color: var(--balam-modal-text);
    font-size: 0.9375rem;
    transition:
        border-color 0.25s var(--balam-modal-transition-easing),
        background 0.25s var(--balam-modal-transition-easing),
        box-shadow 0.25s var(--balam-modal-transition-easing),
        transform 0.25s var(--balam-modal-transition-easing);
}

.balam-modal-input:hover {
    border-color: var(--balam-modal-border-light);
    background: rgba(21, 21, 29, 0.8);
}

.balam-modal-input:focus {
    outline: none;
    border-color: var(--balam-primary, #4361ee);
    background: var(--balam-modal-input);
    box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.12), 0 0 20px rgba(67, 97, 238, 0.1);
    transform: translateY(-1px);
}

.balam-modal-input::placeholder {
    color: var(--balam-modal-text-dim);
}

/* Textarea */
.balam-modal-textarea {
    min-height: 120px;
    resize: vertical;
}

/* Select */
.balam-modal-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* Form grid */
.balam-modal-form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

/* Info box */
.balam-modal-info-box {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    background: rgba(67, 97, 238, 0.08);
    border: 1px solid rgba(67, 97, 238, 0.15);
    border-left: 3px solid var(--balam-primary, #4361ee);
    border-radius: 0 10px 10px 0;
    padding: 0.875rem 1rem;
    margin-top: 0.75rem;
    font-size: 0.8125rem;
    color: #a5b4fc;
    line-height: 1.5;
}

.balam-modal-info-box i {
    color: var(--balam-primary, #4361ee);
    font-size: 0.9rem;
    margin-top: 0.125rem;
    flex-shrink: 0;
}

/* Warning box */
.balam-modal-warning-box {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.15);
    border-left: 3px solid #f59e0b;
    border-radius: 0 10px 10px 0;
    padding: 0.875rem 1rem;
    margin-top: 0.75rem;
    font-size: 0.8125rem;
    color: #fcd34d;
    line-height: 1.5;
}

.balam-modal-warning-box i {
    color: #f59e0b;
    font-size: 0.9rem;
    margin-top: 0.125rem;
    flex-shrink: 0;
}

/* Error box */
.balam-modal-error-box {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.15);
    border-left: 3px solid #ef4444;
    border-radius: 0 10px 10px 0;
    padding: 0.875rem 1rem;
    margin-top: 0.75rem;
    font-size: 0.8125rem;
    color: #fca5a5;
    line-height: 1.5;
}

.balam-modal-error-box i {
    color: #ef4444;
    font-size: 0.9rem;
    margin-top: 0.125rem;
    flex-shrink: 0;
}


/* ===============================================================================
   Tab Content
   =============================================================================== */

.balam-modal-tab-content {
    display: none;
}

.balam-modal-tab-content.active {
    display: block;
    animation: balam-modal-fade-in 0.3s ease;
}

@keyframes balam-modal-fade-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* ===============================================================================
   Loading Overlay
   =============================================================================== */

.balam-modal-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 15, 23, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    transition:
        opacity 0.3s ease,
        visibility 0.3s ease;
}

.balam-modal-loading.show {
    opacity: 1;
    visibility: visible;
}

.balam-modal-loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(67, 97, 238, 0.2);
    border-top-color: var(--balam-primary, #4361ee);
    border-radius: 50%;
    animation: balam-modal-spinner 0.8s linear infinite;
}

.balam-modal-loading-text {
    margin-top: 1rem;
    color: var(--balam-modal-text-muted);
    font-size: 0.875rem;
}


/* ===============================================================================
   Accessibility: Focus Trap Indicator
   =============================================================================== */

.balam-modal[data-focus-trapped] {
    outline: none;
}


/* ===============================================================================
   Responsive Styles
   =============================================================================== */

/* Tablet */
@media (max-width: 991.98px) {
    .balam-modal {
        max-width: 90vw;
    }

    .balam-modal.modal-lg,
    .balam-modal.modal-xl {
        max-width: 95vw;
    }

    .balam-modal-form-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* Mobile */
@media (max-width: 767.98px) {
    .balam-modal-overlay {
        padding: 1rem;
    }

    .balam-modal-header {
        padding: 1.5rem;
    }

    .balam-modal-title {
        font-size: 1.25rem;
    }

    .balam-modal-icon {
        width: 44px;
        height: 44px;
        font-size: 1.25rem;
    }

    .balam-modal-body {
        padding: 1.5rem;
    }

    .balam-modal-footer {
        padding: 1rem 1.5rem;
        flex-wrap: wrap;
    }

    .balam-modal-tabs {
        padding: 0 1rem;
    }

    .balam-modal-tab {
        padding: 0.875rem 1rem;
        font-size: 0.875rem;
    }

    .balam-modal-section {
        padding: 1.5rem;
    }
}

/* Small Mobile */
@media (max-width: 575.98px) {
    .balam-modal-overlay {
        padding: 0;
    }

    .balam-modal {
        max-width: 100%;
        max-height: 100vh;
        border-radius: 0;
    }

    .balam-modal-title-wrapper {
        gap: 0.75rem;
    }

    .balam-modal-icon {
        width: 40px;
        height: 40px;
        font-size: 1.125rem;
        border-radius: 10px;
    }

    .balam-modal-close {
        width: 40px;
        height: 40px;
    }

    .balam-modal-footer {
        flex-direction: column;
    }

    .balam-modal-footer .balam-modal-btn {
        width: 100%;
    }
}


/* ===============================================================================
   Print Styles
   =============================================================================== */

@media print {
    .balam-modal-overlay {
        position: static;
        background: none;
        padding: 0;
    }

    .balam-modal {
        max-width: 100%;
        max-height: none;
        box-shadow: none;
        border: 1px solid #000;
    }

    .balam-modal-close {
        display: none;
    }
}