@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Georgia&display=swap');

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

:root {
    --white:      #ffffff;
    --bg:         #f8fafc;
    --surface:    #ffffff;
    --border:     #e2e8f0;
    --border-md:  #cbd5e1;
    --text-1:     #0f172a;
    --text-2:     #475569;
    --text-3:     #94a3b8;
    --blue:       #2563eb;
    --blue-light: #eff6ff;
    --blue-dark:  #1d4ed8;
    --green:      #16a34a;
    --green-light:#f0fdf4;
    --amber:      #b45309;
    --amber-light:#fffbeb;
    --purple:     #7c3aed;
    --purple-light:#faf5ff;
    --red:        #dc2626;
    --red-light:  #fef2f2;
    --sans:       'Inter', system-ui, sans-serif;
    --serif:      'Georgia', serif;
    --radius:     6px;
    --radius-lg:  10px;
    --radius-xl:  14px;
    --shadow-sm:  0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md:  0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg:  0 8px 24px rgba(0,0,0,0.10);
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg);
    color: var(--text-1);
    font-family: var(--sans);
    font-size: 14px;
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* header */
.header {
    background-color: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    height: 56px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    width: 150px;
    height: auto;
}

.logo-wordmark {
    font-family: var(--serif);
    font-size: 13px;
    color: var(--text-2);
    border-left: 1px solid var(--border);
    padding-left: 14px;
    letter-spacing: 0.01em;
}

/* nav */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-btn {
    background: transparent;
    color: var(--text-2);
    border: none;
    padding: 6px 12px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    font-family: var(--sans);
    text-decoration: none;
    display: inline-block;
    transition: color 0.15s, background 0.15s;
}

.nav-btn:hover,
.nav-btn.active {
    color: var(--text-1);
    background: var(--bg);
}

/* dropdown */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown .nav-btn::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 3px solid transparent;
    border-right: 3px solid transparent;
    border-top: 4px solid currentColor;
    margin-left: 5px;
    vertical-align: middle;
    opacity: 0.4;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    padding-top: 6px;
    min-width: 210px;
    z-index: 1000;
    overflow: visible;
    background: transparent;
}

.dropdown-content::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: -1;
}

.dropdown-content a {
    color: var(--text-2);
    padding: 8px 12px;
    text-decoration: none;
    display: block;
    font-size: 13px;
    border-radius: var(--radius);
    transition: color 0.15s, background 0.15s;
    position: relative;
    z-index: 1;
}

.dropdown-content a:hover {
    color: var(--text-1);
    background: var(--bg);
}

.dropdown:hover .dropdown-content {
    display: block;
}

.logout-option {
    color: var(--red) !important;
    border-top: 1px solid var(--border);
    margin-top: 4px;
    padding-top: 8px !important;
    border-radius: 0 !important;
}

.logout-option:hover {
    background: var(--red-light) !important;
}

/* main */
.main-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 32px 24px 64px;
}

/* card */
.card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    padding: 40px;
    width: 100%;
}

/* headings */
h1 {
    font-family: var(--serif);
    font-size: 26px;
    font-weight: 700;
    color: var(--text-1);
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-1);
    margin-bottom: 16px;
}

h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-1);
    margin-bottom: 12px;
}

/* page title accent */
.page-title-blue {
    color: var(--blue);
}

/* form elements */
label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--text-1);
    font-size: 13px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="file"],
select,
textarea {
    width: 100%;
    padding: 10px 13px;
    border: 1px solid var(--border-md);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: var(--sans);
    color: var(--text-1);
    background: var(--white);
    transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

input:disabled,
select:disabled {
    background: var(--bg);
    color: var(--text-3);
    cursor: not-allowed;
}

textarea {
    resize: vertical;
    min-height: 90px;
}

/* buttons */
.btn,
.submit-btn,
.primary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 600;
    font-family: var(--sans);
    cursor: pointer;
    transition: background 0.15s, box-shadow 0.15s, transform 0.1s;
    text-decoration: none;
}

.btn:active,
.submit-btn:active,
.primary-btn:active {
    transform: translateY(1px);
}

.btn-primary,
.submit-btn {
    background: var(--blue);
    color: #fff;
}

.btn-primary:hover,
.submit-btn:hover {
    background: var(--blue-dark);
    box-shadow: 0 2px 8px rgba(37,99,235,0.25);
}

.btn-success,
.add-user-btn {
    background: var(--green);
    color: #fff;
}

.btn-success:hover,
.add-user-btn:hover {
    background: #15803d;
    box-shadow: 0 2px 8px rgba(22,163,74,0.25);
}

.btn-danger,
.delete-user-btn,
.btn-delete {
    background: var(--red);
    color: #fff;
}

.btn-danger:hover,
.delete-user-btn:hover,
.btn-delete:hover {
    background: #b91c1c;
}

.btn-secondary,
.back-btn,
.secondary-btn {
    background: var(--bg);
    color: var(--text-2);
    border: 1px solid var(--border-md);
}

.btn-secondary:hover,
.back-btn:hover,
.secondary-btn:hover {
    background: var(--border);
    color: var(--text-1);
}

.btn:disabled,
.submit-btn:disabled,
.primary-btn:disabled {
    background: var(--text-3);
    cursor: not-allowed;
    box-shadow: none;
}

/* tables */
table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 11px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
}

th {
    font-weight: 600;
    color: var(--text-2);
    background: var(--bg);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

tbody tr {
    transition: background 0.12s;
}

tbody tr:hover {
    background: var(--bg);
}

/* status badges */
.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.03em;
}

.status-pending   { background: var(--amber-light); color: var(--amber); }
.status-approved  { background: var(--green-light);  color: var(--green); }
.status-rejected  { background: var(--red-light);    color: var(--red); }
.status-draft     { background: var(--bg);           color: var(--text-2); border: 1px solid var(--border-md); }

/* tag pills */
.tag-doc    { background: var(--blue-light);   color: #1e40af; }
.tag-form   { background: var(--green-light);  color: #166534; }
.tag-asm    { background: var(--amber-light);  color: #92400e; }
.tag-admin  { background: var(--purple-light); color: #5b21b6; }

.guide-tag,
.type-badge,
.perm-badge {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
}

/* alerts */
.success-message {
    background: var(--green-light);
    color: var(--green);
    border: 1px solid #bbf7d0;
    padding: 14px 18px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
}

.error-message {
    background: var(--red-light);
    color: var(--red);
    border: 1px solid #fecaca;
    padding: 14px 18px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
}

.info-message {
    background: var(--blue-light);
    color: var(--blue);
    border: 1px solid #bfdbfe;
    padding: 14px 18px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
}

/* modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(15,23,42,0.45);
}

.modal-content {
    background: var(--white);
    margin: 6% auto;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 560px;
    overflow: hidden;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.modal-header h2,
.modal-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-1);
}

.close,
.close-btn,
.close-modal {
    background: none;
    border: none;
    font-size: 22px;
    line-height: 1;
    color: var(--text-3);
    cursor: pointer;
    padding: 2px 6px;
    border-radius: var(--radius);
    transition: color 0.15s, background 0.15s;
}

.close:hover,
.close-btn:hover,
.close-modal:hover {
    color: var(--text-1);
    background: var(--bg);
}

.modal-body {
    padding: 24px;
    max-height: 70vh;
    overflow-y: auto;
}

/* empty state */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-3);
}

.empty-state h3 {
    color: var(--text-2);
    margin-bottom: 8px;
}

.empty-state-icon {
    font-size: 40px;
    margin-bottom: 16px;
    opacity: 0.4;
}

/* loading */
.loading-spinner {
    border: 3px solid var(--border);
    border-top: 3px solid var(--blue);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 12px;
}

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

/* footer */
.footer {
    background: var(--white);
    border-top: 1px solid var(--border);
    text-align: center;
    padding: 18px;
    font-size: 12px;
    color: var(--text-3);
    margin-top: 48px;
}

/* scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-md); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* responsive */
@media (max-width: 768px) {
    .header-content { padding: 0 16px; }
    .logo-wordmark { display: none; }
    .main-content { padding: 20px 16px 48px; }
    .card { padding: 24px 20px; }
    .nav-menu { gap: 0; }
    .dropdown-content { position: fixed; left: 12px; right: 12px; width: auto; }
}