:root {
    --bg-dark: #0f172a;
    --bg-panel: rgba(30, 41, 59, 0.6);
    --bg-panel-solid: #1e293b;
    --bg-body: linear-gradient(135deg, #020617, #0f172a);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --secondary: #8b5cf6;
    --accent: #10b981;
    --border: rgba(255, 255, 255, 0.1);
    --sidebar-width: 260px;
    --input-bg: rgba(255, 255, 255, 0.12);
    --card-hover-bg: rgba(255, 255, 255, 0.03);
    --scrollbar-thumb: rgba(255, 255, 255, 0.1);
    --scrollbar-hover: rgba(255, 255, 255, 0.2);
    color-scheme: dark;
}

[data-theme="light"] {
    --bg-dark: #f1f5f9;
    --bg-panel: rgba(255, 255, 255, 0.85);
    --bg-panel-solid: #ffffff;
    --bg-body: linear-gradient(135deg, #e2e8f0, #f1f5f9);
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border: rgba(0, 0, 0, 0.1);
    --input-bg: rgba(0, 0, 0, 0.05);
    --card-hover-bg: rgba(0, 0, 0, 0.02);
    --scrollbar-thumb: rgba(0, 0, 0, 0.15);
    --scrollbar-hover: rgba(0, 0, 0, 0.25);
    color-scheme: light;
}

/* Light theme overrides for elements with inline dark styles */
[data-theme="light"] .sidebar {
    background: rgba(255, 255, 255, 0.9);
}
[data-theme="light"] .sidebar-header h2 {
    background: linear-gradient(to right, #2563eb, #7c3aed);
    -webkit-background-clip: text;
}
[data-theme="light"] .login-title {
    background: linear-gradient(to right, #2563eb, #7c3aed);
    -webkit-background-clip: text;
}
[data-theme="light"] .main-content::before {
    background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
}
[data-theme="light"] .card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}
[data-theme="light"] .table-container {
    background: rgba(255, 255, 255, 0.8);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}
[data-theme="light"] th {
    background: rgba(0, 0, 0, 0.04);
}
[data-theme="light"] .modal {
    background: #ffffff;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}
[data-theme="light"] .login-card {
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);
}
[data-theme="light"] .login-screen::before {
    background: radial-gradient(circle, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
}
[data-theme="light"] .login-screen::after {
    background: radial-gradient(circle, rgba(139, 92, 246, 0.05) 0%, transparent 70%);
}
[data-theme="light"] .login-hint {
    background: rgba(59, 130, 246, 0.05);
}
[data-theme="light"] .email-chip {
    background: rgba(59, 130, 246, 0.1);
    color: #2563eb;
}
[data-theme="light"] .email-chip button {
    color: #2563eb;
}
[data-theme="light"] .email-dropdown {
    background: #ffffff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
[data-theme="light"] .search-box {
    background: #ffffff;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}
[data-theme="light"] .nav-item.active {
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.1), transparent);
}
[data-theme="light"] .btn-disabled, [data-theme="light"] .btn:disabled {
    opacity: 0.4;
}
[data-theme="light"] .email-sent-toast {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-body);
    color: var(--text-main);
    min-height: 100vh;
    overflow: hidden;
}

.app-container {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-panel);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    transition: width 0.3s ease, padding 0.3s ease;
    position: relative;
    z-index: 30;
}

.sidebar.collapsed {
    width: 70px;
    padding: 1.5rem 0.5rem;
}

.sidebar.collapsed .sidebar-header h2,
.sidebar.collapsed .nav-item span:not(.nav-badge),
.sidebar.collapsed .nav-badge {
    display: none;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 0.75rem 0.5rem;
}

.sidebar.collapsed .nav-item i {
    margin: 0;
}

.sidebar-toggle {
    position: absolute;
    top: 1.2rem;
    right: -18px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary);
    border: 3px solid var(--bg-dark);
    color: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    z-index: 50;
    transition: transform 0.3s ease, background 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.55);
}

.sidebar-toggle:hover {
    background: var(--secondary);
    box-shadow: 0 3px 14px rgba(139, 92, 246, 0.55);
}

.sidebar-toggle:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

/* Multi-select for Assigned To — make selected team members clearly highlighted */
#field-assigned option {
    padding: 0.4rem 0.6rem;
    color: var(--text-main);
    background: var(--input-bg);
}
#field-assigned option:checked {
    background: linear-gradient(0deg, var(--primary), var(--primary));
    color: #ffffff !important;
    font-weight: 600;
    box-shadow: 0 0 10px 100px var(--primary) inset;
}
#field-assigned option:checked::before {
    content: "\f00c"; /* check */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    margin-right: 0.4rem;
    color: #ffffff;
}
#field-assigned:focus option:checked {
    background: linear-gradient(0deg, var(--secondary), var(--secondary));
    box-shadow: 0 0 10px 100px var(--secondary) inset;
}

.sidebar.collapsed .sidebar-toggle i {
    transform: rotate(180deg);
}

.sidebar-header { margin-bottom: 2rem; }
.sidebar-header h2 {
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    color: transparent;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item {
    padding: 0.75rem 1rem;
    border-radius: 0.75rem;
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.2s ease;
}

.nav-item i { font-size: 1.2rem; width: 24px; text-align: center; }
.nav-item:hover { background: var(--card-hover-bg); color: var(--text-main); }
.nav-badge {
    background: #f59e0b;
    color: #000;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.1rem 0.4rem;
    border-radius: 999px;
    margin-left: auto;
    min-width: 18px;
    text-align: center;
    line-height: 1.3;
}

.nav-item.active {
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.2), transparent);
    border-left: 3px solid var(--primary);
    color: var(--text-main);
}

.sidebar-footer {
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.user-info { display: flex; align-items: center; gap: 1rem; }
.user-info img { border-radius: 50%; width: 40px; height: 40px; border: 1px solid var(--border); }

.topbar-user:hover {
    background: var(--card-hover-bg);
}

.logout-btn {
    width: 100%;
    margin-top: 0.75rem;
    padding: 0.55rem;
    border-radius: 0.6rem;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    font-family: 'Inter', sans-serif;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s;
}
.logout-btn:hover {
    color: #f87171;
    border-color: rgba(248, 113, 113, 0.3);
    background: rgba(248, 113, 113, 0.05);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.main-content::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

.topbar {
    height: 80px;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    background: var(--bg-panel);
    backdrop-filter: blur(10px);
    z-index: 10;
}

.topbar h1 {
    font-size: 1.75rem;
    font-weight: 600;
}

.btn-icon {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    transition: color 0.2s, transform 0.2s;
    margin-left: 1rem;
}
.btn-icon:hover { color: var(--text-main); transform: scale(1.1); }

.content-area {
    flex: 1;
    padding: 2.5rem;
    overflow-y: auto;
    z-index: 1;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.card {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.5rem;
    transition: transform 0.2s, border-color 0.2s;
    backdrop-filter: blur(10px);
}
.card:hover {
    transform: translateY(-4px);
    border-color: var(--scrollbar-hover);
}

.card-title {
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.card-value {
    font-size: 2.5rem;
    font-weight: 700;
}

.table-container {
    background: var(--bg-panel);
    border-radius: 1rem;
    border: 1px solid var(--border);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

table { width: 100%; border-collapse: collapse; }
th {
    background: var(--input-bg);
    padding: 1.25rem 1.5rem;
    text-align: left;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
}
td {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border);
    overflow: visible;
}
tr:hover td { background: var(--card-hover-bg); }

.badge {
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}
.badge-active { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.2); }
.badge-pending { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.2); }
.badge-former { background: rgba(148, 163, 184, 0.15); color: #94a3b8; border: 1px solid rgba(148, 163, 184, 0.2); }

/* Email compose */
.email-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.6rem;
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.25);
    border-radius: 999px;
    font-size: 0.8rem;
    color: #93c5fd;
    white-space: nowrap;
}
.email-chip button {
    background: none;
    border: none;
    color: #93c5fd;
    cursor: pointer;
    font-size: 0.75rem;
    padding: 0;
    line-height: 1;
    opacity: 0.7;
    transition: opacity 0.2s;
}
.email-chip button:hover { opacity: 1; }

.email-dropdown {
    position: relative;
    background: var(--bg-panel-solid);
    border: 1px solid var(--border);
    border-radius: 0.6rem;
    margin-top: 0.25rem;
    max-height: 160px;
    overflow-y: auto;
    z-index: 10;
}
.email-dropdown-item {
    padding: 0.6rem 1rem;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.15s;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.email-dropdown-item:hover { background: rgba(255, 255, 255, 0.05); }
.email-dropdown-item span { color: var(--text-muted); font-size: 0.8rem; }

.email-quick-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: all 0.2s;
}
.email-quick-btn:hover {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    border-color: rgba(59, 130, 246, 0.3);
}

.email-sent-toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--accent);
    color: #fff;
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 500;
    font-size: 0.95rem;
    z-index: 2000;
    animation: fadeIn 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

@keyframes fadeOut {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(10px); }
}

/* Search overlay */
.search-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 12vh;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}
.search-overlay.open {
    opacity: 1;
    pointer-events: auto;
}
.search-box {
    background: var(--bg-panel-solid);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.25rem 1.5rem;
    width: 560px;
    max-width: 90vw;
}
.search-result-item {
    padding: 0.6rem 0.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.92rem;
    transition: background 0.15s;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.search-result-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Accordion */
.accordion-header:hover {
    background: var(--card-hover-bg);
}
.accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}
.accordion-body.accordion-open {
    max-height: 2000px;
}

.btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 0.75rem;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}
.btn:hover:not(:disabled) { background: var(--primary-hover); transform: translateY(-1px); }
.btn-disabled, .btn:disabled, .btn-icon:disabled {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: auto;
    transform: none !important;
}
.btn-icon:disabled:hover { color: var(--text-muted); transform: none; }

.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-center { display: flex; justify-content: center; align-items: center; }
.gap-4 { gap: 1rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-4 { margin-top: 1.5rem; }

.feed-item {
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--border);
}
.feed-item:last-child { border-bottom: none; }
.feed-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}
.feed-author { font-weight: 600; font-size: 1.05rem; }
.feed-date { color: var(--text-muted); font-size: 0.875rem; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Login Screen */
.login-screen {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--bg-body);
    position: relative;
    overflow: hidden;
}
.login-screen::before {
    content: '';
    position: absolute;
    top: -40%;
    left: -20%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.login-screen::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.login-card {
    background: var(--bg-panel);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: 1.25rem;
    padding: 3rem 2.5rem;
    width: 420px;
    max-width: 90vw;
    z-index: 1;
    animation: fadeIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.login-logo {
    width: auto;
    height: auto;
    background: transparent;
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    filter: drop-shadow(0 0 18px rgba(96, 165, 250, 0.35));
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.75rem;
    color: white;
}
.login-title {
    text-align: center;
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    color: transparent;
    margin-bottom: 0.35rem;
}
.login-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}
.login-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
}
.remember-me {
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
}
.remember-me input[type="checkbox"] {
    accent-color: var(--primary);
    cursor: pointer;
}
.forgot-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}
.forgot-link:hover {
    color: var(--primary-hover);
}
.login-btn {
    width: 100%;
    padding: 0.85rem;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
}
.login-error {
    color: #f87171;
    text-align: center;
    font-size: 0.875rem;
    margin-top: 1rem;
    min-height: 1.25rem;
}
.login-hint {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 0.75rem;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.15);
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.6;
}
.login-hint strong {
    color: var(--text-main);
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-hover); }

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}
.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}
.modal {
    background: var(--bg-panel-solid);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 2rem;
    width: 480px;
    max-width: 90vw;
    transform: translateY(20px) scale(0.97);
    transition: transform 0.25s ease;
}
.modal-overlay.open .modal {
    transform: translateY(0) scale(1);
}
.modal h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}
.form-group {
    margin-bottom: 1.25rem;
}
.form-group label {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
    font-weight: 600;
}
.form-group input,
.form-group select {
    width: 100%;
    padding: 0.7rem 1rem;
    border-radius: 0.6rem;
    border: 1px solid var(--border);
    background: var(--input-bg);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}
.form-group input[type="date"] {
    color-scheme: inherit;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
}
.form-group select option {
    background: var(--bg-panel-solid);
    color: var(--text-main);
}
.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.5rem;
}
.btn-secondary {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    padding: 0.6rem 1.5rem;
    border-radius: 0.75rem;
    cursor: pointer;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
    transition: all 0.2s;
}
.btn-secondary:hover {
    color: var(--text-main);
    border-color: rgba(255, 255, 255, 0.3);
}

/* Print styles */
@media print {
    body * { visibility: hidden; }
    #print-area, #print-area * { visibility: visible; }
    #print-area {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        color: #000;
        background: #fff;
        font-size: 12pt;
        line-height: 1.8;
        padding: 2rem;
        white-space: pre-wrap;
    }
    #print-area h2 {
        font-size: 16pt;
        margin-bottom: 1rem;
        border-bottom: 2px solid #000;
        padding-bottom: 0.5rem;
    }
}