/* ═══════════════════════════════════════════════════════════════
   USERS PAGE - NEUMORPHISM STYLES
   Uses CSS variables from global.css
   ═══════════════════════════════════════════════════════════════ */

body {
    font-family: var(--font-family);
    background: var(--bg-base);
    color: var(--text-primary);
}

.page-container {
    padding: 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* ═══════════════════════════════════════════════════════════════
   SEARCH & FILTER BAR (Neumorphic)
   ═══════════════════════════════════════════════════════════════ */
.search-filter-bar {
    background: var(--bg-base);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--neu-convex);
}

.search-box {
    position: relative;
    margin-bottom: 1rem;
}

.search-input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    background: var(--bg-base);
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-family: var(--font-family);
    color: var(--text-primary);
    box-shadow: var(--neu-pressed);
    transition: var(--transition-base);
}

.search-input:focus {
    outline: none;
    box-shadow: var(--neu-pressed), 0 0 0 3px rgba(227, 125, 96, 0.2);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent-coral);
    font-size: 1.25rem;
}

/* Quick Filters (Neumorphic Pills) */
.quick-filters {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

.filter-chip {
    padding: 0.625rem 1.25rem;
    background: var(--bg-base);
    border: none;
    border-radius: var(--border-radius-pill);
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--neu-convex-sm);
    color: var(--text-secondary);
}

.filter-chip:hover {
    box-shadow: var(--neu-convex);
    color: var(--text-primary);
}

.filter-chip.active {
    box-shadow: var(--neu-pressed);
    color: var(--accent-coral);
}

.filter-chip i {
    margin-right: 0.375rem;
    color: var(--accent-coral);
}

/* Stats Summary */
.stats-summary {
    display: flex;
    gap: 1rem;
    padding: 0.75rem 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.stat-value {
    font-weight: var(--font-weight-bold);
    color: var(--accent-coral);
}

/* ═══════════════════════════════════════════════════════════════
   USERS GRID
   ═══════════════════════════════════════════════════════════════ */
.users-grid {
    display: block;
}

/* Exam Type Section */
.exam-type-section {
    margin-bottom: 2rem;
}

/* Exam Type Header (Neumorphic) */
.exam-type-header {
    background: var(--bg-base);
    color: var(--text-primary);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    font-weight: var(--font-weight-bold);
    font-size: 0.9375rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--neu-convex-sm);
    letter-spacing: 0.02em;
}

.exam-type-icon {
    font-size: 1.125rem;
    color: var(--accent-coral);
}

.exam-type-name {
    flex: 1;
    font-weight: var(--font-weight-bold);
}

.exam-type-count {
    background: var(--bg-base);
    padding: 0.375rem 0.875rem;
    border-radius: var(--border-radius-pill);
    font-size: 0.8125rem;
    font-weight: var(--font-weight-bold);
    color: var(--accent-coral);
    box-shadow: var(--neu-pressed);
}

.delete-all-btn {
    background: linear-gradient(135deg, var(--color-danger), #c0392b);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-pill);
    font-size: 0.8125rem;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    gap: 0.375rem;
    box-shadow: var(--neu-convex-sm);
}

.delete-all-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

.collapse-icon {
    font-size: 0.8rem;
    transition: transform var(--transition-slow);
    color: var(--text-secondary);
}

.exam-type-header.collapsed .collapse-icon {
    transform: rotate(-90deg);
}

/* ═══════════════════════════════════════════════════════════════
   USERS TABLE (Neumorphic)
   ═══════════════════════════════════════════════════════════════ */
.users-table {
    background: var(--bg-base);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    overflow: hidden;
    margin-bottom: 1rem;
    box-shadow: var(--neu-convex-sm);
}

.table-header {
    display: grid;
    grid-template-columns: 40px 4fr 120px 100px 100px 80px;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--bg-base);
    font-size: 0.8rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.table-row {
    display: grid;
    grid-template-columns: 40px 4fr 120px 100px 100px 80px;
    gap: 1rem;
    padding: 1rem 1.25rem;
    transition: var(--transition-base);
    cursor: pointer;
    align-items: center;
    background: var(--bg-base);
}

.table-row:hover {
    box-shadow: var(--neu-pressed);
}

/* Table Cells */
.cell-delete {
    display: flex;
    align-items: center;
    justify-content: center;
}

.cell-name {
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    font-size: 0.9375rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cell-email {
    color: var(--text-secondary);
    font-size: 0.875rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cell-skills {
    display: flex;
    gap: 0.375rem;
}

.skill-dot {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.625rem;
    font-weight: var(--font-weight-bold);
    color: white;
    box-shadow: var(--neu-convex-sm);
}

.skill-dot.reading {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.skill-dot.listening {
    background: linear-gradient(135deg, #ec4899, #db2777);
}

.skill-dot.writing {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.skill-dot.speaking {
    background: linear-gradient(135deg, #10b981, #059669);
}

.cell-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    box-shadow: var(--neu-convex-sm);
}

.status-dot.pending {
    background: var(--color-warning);
}

.status-dot.locked {
    background: var(--color-danger);
}

.status-dot.completed {
    background: var(--color-success);
}

.status-text {
    font-size: 0.8125rem;
    font-weight: var(--font-weight-bold);
    text-transform: capitalize;
}

.status-text.pending {
    color: var(--color-warning);
}

.status-text.locked {
    color: var(--color-danger);
}

.status-text.completed {
    color: var(--color-success);
}

/* Status Select Dropdown (Neumorphic) */
.status-select {
    padding: 0.5rem 0.875rem;
    background: var(--bg-base);
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 0.8125rem;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: var(--transition-base);
    min-width: 110px;
    box-shadow: var(--neu-convex-sm);
    color: var(--text-primary);
}

.status-select:hover {
    box-shadow: var(--neu-convex);
}

.status-select:focus {
    outline: none;
    box-shadow: var(--neu-pressed);
}

.status-select.pending {
    color: var(--color-warning);
}

.status-select.locked {
    color: var(--color-danger);
}

.status-select.completed {
    color: var(--color-success);
}

.cell-date {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

/* Mobile Responsive Table */
@media (max-width: 1024px) {
    .table-header {
        display: none;
    }

    .table-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
        padding: 1.25rem;
        border-radius: var(--border-radius-sm);
        margin-bottom: 0.75rem;
        box-shadow: var(--neu-convex-sm);
        position: relative;
    }

    .cell-delete {
        position: absolute;
        top: 1rem;
        right: 1rem;
    }

    .cell-name {
        font-size: 1rem;
        margin-bottom: 0.25rem;
    }

    .users-table {
        background: transparent;
        box-shadow: none;
        padding: 0.5rem 0;
    }

    .exam-type-header {
        border-radius: var(--border-radius);
        margin-bottom: 0.75rem;
    }
}

/* ═══════════════════════════════════════════════════════════════
   USER CARD (Neumorphic)
   ═══════════════════════════════════════════════════════════════ */
.user-card {
    background: var(--bg-base);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition-slow);
    position: relative;
    cursor: pointer;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--neu-convex);
}

.user-card:hover {
    transform: translateY(-4px);
    box-shadow: 10px 10px 20px var(--shadow-dark), -10px -10px 20px var(--shadow-light);
}

.user-card:active {
    box-shadow: var(--neu-pressed);
}

/* Status Indicator */
.status-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    box-shadow: var(--neu-convex-sm);
}

.status-badge.pending {
    background: var(--color-warning);
}

.status-badge.locked {
    background: var(--color-danger);
}

.status-badge.completed {
    background: var(--color-success);
}

/* Delete User Button (Neumorphic) */
.delete-user-btn {
    background: var(--bg-base);
    color: var(--color-danger);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: var(--transition-base);
    font-size: 0.875rem;
    box-shadow: var(--neu-convex-sm);
}

.table-row:hover .delete-user-btn {
    opacity: 1;
}

.delete-user-btn:hover {
    box-shadow: var(--neu-pressed);
    color: white;
    background: var(--color-danger);
}

@media (max-width: 1024px) {
    .delete-user-btn {
        opacity: 0.8;
    }
}

/* User Info */
.user-name {
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

.user-email {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

/* Skills (Neumorphic) */
.user-skills {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

.skill-badge {
    width: 36px;
    height: 36px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    box-shadow: var(--neu-convex-sm);
    background: var(--bg-base);
}

.skill-badge.reading {
    color: #8b5cf6;
}

.skill-badge.listening {
    color: #ec4899;
}

.skill-badge.writing {
    color: #3b82f6;
}

.skill-badge.speaking {
    color: #10b981;
}

/* Exam Info */
.exam-info {
    display: flex;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-top: auto;
    padding-top: 0.75rem;
}

.exam-badge {
    background: var(--bg-base);
    padding: 0.375rem 0.75rem;
    border-radius: var(--border-radius-pill);
    font-weight: var(--font-weight-semibold);
    box-shadow: var(--neu-pressed);
}

/* Action Button */
.user-actions {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.user-card:hover .user-actions {
    opacity: 1;
}

.action-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: linear-gradient(135deg, var(--accent-coral), #c96a50);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--neu-convex-sm);
}

.action-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(227, 125, 96, 0.4);
}

/* ═══════════════════════════════════════════════════════════════
   EMPTY & LOADING STATES
   ═══════════════════════════════════════════════════════════════ */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.loading {
    text-align: center;
    padding: 2rem;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--bg-base);
    border-top-color: var(--accent-coral);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto;
    box-shadow: var(--neu-convex-sm);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ═══════════════════════════════════════════════════════════════
   FLOATING ACTION BUTTON (Neumorphic)
   ═══════════════════════════════════════════════════════════════ */
.fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-coral), #c96a50);
    color: white;
    border: none;
    box-shadow: var(--neu-convex);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-base);
    z-index: 50;
}

.fab:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 24px rgba(227, 125, 96, 0.4);
}

.fab:active {
    transform: scale(0.95);
}

/* ═══════════════════════════════════════════════════════════════
   UPLOAD DOCK (Neumorphic)
   ═══════════════════════════════════════════════════════════════ */
.upload-dock {
    background: var(--bg-base);
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    overflow: hidden;
    box-shadow: var(--neu-convex);
}

.dock-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    cursor: pointer;
    user-select: none;
    transition: var(--transition-base);
}

.dock-header:hover {
    background: rgba(0, 0, 0, 0.02);
}

.dock-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.02em;
}

.dock-icon {
    width: 40px;
    height: 40px;
    background: var(--bg-base);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--accent-teal);
    box-shadow: var(--neu-convex-sm);
}

.dock-expand-icon {
    color: var(--text-muted);
    font-size: 1.125rem;
    transition: transform var(--transition-slow);
}

.upload-dock.expanded .dock-expand-icon {
    transform: rotate(180deg);
}

/* Dock Content */
.dock-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.upload-dock.expanded .dock-content {
    max-height: 500px;
}

.dock-content-inner {
    padding: 0 1.5rem 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    padding-top: 1rem;
}

/* Upload Sections */
.upload-section {
    background: var(--bg-base);
    border-radius: var(--border-radius-sm);
    padding: 1.25rem;
    box-shadow: var(--neu-pressed);
}

.section-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-teal);
    font-size: 0.8rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* CSV Drop Zone (Neumorphic) */
.csv-drop-zone {
    background: var(--bg-base);
    border-radius: var(--border-radius-sm);
    padding: 1.5rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--neu-pressed);
}

.csv-drop-zone:hover {
    box-shadow: var(--neu-convex-sm);
}

.csv-drop-zone.dragover {
    box-shadow: var(--neu-convex);
}

.csv-icon {
    font-size: 2rem;
    color: var(--accent-teal);
    margin-bottom: 0.5rem;
}

.csv-text {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
}

.csv-button {
    background: linear-gradient(135deg, var(--accent-teal), #359688);
    color: white;
    border: none;
    padding: 0.625rem 1.5rem;
    border-radius: var(--border-radius-pill);
    font-size: 0.8125rem;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    box-shadow: var(--neu-convex-sm);
}

.csv-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(133, 220, 186, 0.4);
}

.csv-hint {
    margin-top: 0.625rem;
    font-size: 0.6875rem;
    color: var(--text-muted);
    font-family: 'Monaco', 'Consolas', monospace;
}

/* Sheets Form (Neumorphic) */
.sheets-form-compact {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.compact-input-group {
    position: relative;
}

.compact-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.75rem;
    margin-bottom: 0.5rem;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.compact-input {
    width: 100%;
    background: var(--bg-base);
    border: none;
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    transition: var(--transition-base);
    box-shadow: var(--neu-pressed);
}

.compact-input:focus {
    outline: none;
    box-shadow: var(--neu-pressed), 0 0 0 3px rgba(133, 220, 186, 0.2);
}

.compact-input::placeholder {
    color: var(--text-muted);
}

.compact-select {
    width: 100%;
    background: var(--bg-base);
    border: none;
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    padding-right: 2.5rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%2385dcba' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    transition: var(--transition-base);
    box-shadow: var(--neu-pressed);
}

.compact-select:focus {
    outline: none;
    box-shadow: var(--neu-pressed), 0 0 0 3px rgba(133, 220, 186, 0.2);
}

.sheets-submit {
    background: linear-gradient(135deg, var(--accent-teal), #359688);
    color: white;
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: var(--border-radius-pill);
    font-size: 0.8125rem;
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    transition: var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.375rem;
    margin-top: 0.25rem;
    box-shadow: var(--neu-convex-sm);
}

.sheets-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(133, 220, 186, 0.4);
}

.sheets-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Status Message */
.dock-status {
    margin: 1rem 1.5rem 0;
    padding: 0.875rem 1rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.8125rem;
    font-weight: var(--font-weight-semibold);
    display: none;
    align-items: center;
    gap: 0.5rem;
    animation: slideIn 0.3s ease;
    box-shadow: var(--neu-pressed);
}

.dock-status.show {
    display: flex;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dock-status.success {
    background: var(--bg-base);
    color: var(--color-success);
}

.dock-status.error {
    background: var(--bg-base);
    color: var(--color-danger);
}

.dock-status.info {
    background: var(--bg-base);
    color: var(--accent-teal);
}

.dock-status.warning {
    background: var(--bg-base);
    color: var(--color-warning);
}

/* Pull to Refresh */
.pull-to-refresh {
    text-align: center;
    padding: 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    display: none;
}

.pull-to-refresh.active {
    display: block;
}

/* ═══════════════════════════════════════════════════════════════
   MOBILE RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    .dock-content-inner {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .dock-header {
        padding: 0.875rem 1.25rem;
    }

    .dock-title {
        font-size: 0.8125rem;
    }

    .dock-icon {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }

    .upload-section {
        padding: 1rem;
    }

    .upload-dock.expanded .dock-content {
        max-height: 800px;
    }
}

@media (max-width: 639px) {
    .page-container {
        padding: 1rem;
    }

    .search-filter-bar {
        padding: 1.25rem;
        margin-bottom: 1rem;
    }

    .user-card {
        padding: 1.25rem;
    }

    .filter-chip {
        font-size: 0.8125rem;
        padding: 0.5rem 1rem;
    }

    .exam-type-header {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .delete-all-btn {
        width: 100%;
        justify-content: center;
        margin-top: 0.5rem;
    }
}