/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --color-bg: #f4f6f9;
    --color-surface: #ffffff;
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-danger: #dc2626;
    --color-danger-hover: #b91c1c;
    --color-success: #16a34a;
    --color-warning: #d97706;
    --color-info: #0284c7;
    --color-text: #1e293b;
    --color-muted: #64748b;
    --color-border: #e2e8f0;
    --color-header-bg: #1e293b;
    --color-header-text: #f8fafc;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 15px;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100vh;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
    background: #f1f5f9;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 13px;
    font-family: 'Courier New', monospace;
}

/* ===== Header ===== */
.header {
    background: var(--color-header-bg);
    color: var(--color-header-text);
    padding: 0 1rem;
    height: 56px;
    display: flex;
    align-items: center;
    box-shadow: var(--shadow);
}

.header-inner {
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-logo {
    font-weight: 700;
    font-size: 17px;
    letter-spacing: -.3px;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-nav a {
    color: #cbd5e1;
    font-size: 14px;
}
.header-nav a:hover { color: #fff; text-decoration: none; }

.header-user {
    color: #94a3b8;
    font-size: 14px;
}

/* ===== Main ===== */
.main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem 1rem 3rem;
}

/* ===== Alerts ===== */
.alerts { margin-bottom: 1rem; }

.alert {
    padding: .75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: .5rem;
    font-size: 14px;
    border-left: 4px solid transparent;
}
.alert-success { background: #f0fdf4; border-color: var(--color-success); color: #15803d; }
.alert-danger   { background: #fef2f2; border-color: var(--color-danger);  color: #b91c1c; }
.alert-warning  { background: #fffbeb; border-color: var(--color-warning); color: #92400e; }
.alert-info     { background: #f0f9ff; border-color: var(--color-info);    color: #075985; }

/* ===== Cards ===== */
.card {
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.25rem;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: .5rem 1rem;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background .15s, border-color .15s, opacity .15s;
    text-decoration: none;
    line-height: 1.4;
}
.btn:hover { text-decoration: none; }

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }

.btn-danger {
    background: var(--color-danger);
    color: #fff;
    border-color: var(--color-danger);
}
.btn-danger:hover { background: var(--color-danger-hover); border-color: var(--color-danger-hover); }

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-outline:hover { background: #eff6ff; }

.btn-block { width: 100%; }

.btn-sm { padding: .3rem .7rem; font-size: 13px; }

.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ===== Forms ===== */
.form-group { margin-bottom: 1rem; }

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: .35rem;
    color: var(--color-text);
}

.form-control {
    width: 100%;
    padding: .5rem .75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--color-text);
    background: #fff;
    transition: border-color .15s, box-shadow .15s;
    outline: none;
}
.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}

.form-check label {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: 14px;
    cursor: pointer;
}
.form-check input[type=checkbox] { width: 16px; height: 16px; cursor: pointer; }

.form-row {
    display: flex;
    gap: .5rem;
    align-items: center;
}
.form-row .form-control { flex: 1; }

.form-actions {
    display: flex;
    gap: .75rem;
    margin-top: 1.5rem;
}

/* ===== Password hints ===== */
.password-hints {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
    margin-top: .5rem;
}

.hint {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 20px;
    background: #f1f5f9;
    color: var(--color-muted);
    border: 1px solid #e2e8f0;
    transition: background .2s, color .2s;
}
.hint.valid   { background: #f0fdf4; color: var(--color-success); border-color: #86efac; }
.hint.invalid { background: #fef2f2; color: var(--color-danger);  border-color: #fca5a5; }

/* ===== Captcha ===== */
.captcha-row {
    display: flex;
    align-items: center;
    gap: .75rem;
    margin-bottom: .5rem;
}

.captcha-img {
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    cursor: pointer;
    display: block;
}

.captcha-input { max-width: 200px; }

/* ===== Tables ===== */
.table-wrap { overflow-x: auto; }

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.table th {
    text-align: left;
    padding: .6rem .75rem;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: var(--color-muted);
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}

.table td {
    padding: .65rem .75rem;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: #f8fafc; }

.th-check { width: 36px; }

.table-actions {
    display: flex;
    gap: .5rem;
    align-items: center;
    margin-bottom: .75rem;
}

/* ===== Badges ===== */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .4px;
}
.badge-info      { background: #e0f2fe; color: #075985; }
.badge-secondary { background: #f1f5f9; color: #475569; }
.badge-warning   { background: #fffbeb; color: #92400e; }
.badge-danger    { background: #fef2f2; color: #b91c1c; }
.badge-success   { background: #f0fdf4; color: #15803d; }

/* ===== Auth pages ===== */
.auth-wrap {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 3rem;
}

.auth-card {
    width: 100%;
    max-width: 420px;
}

/* ===== Dashboard ===== */
.dashboard-wrap { max-width: 900px; }

.page-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 1.25rem;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.page-header .page-title { margin-bottom: 0; }

.actions { white-space: nowrap; display: flex; gap: .4rem; }

.text-muted { color: var(--color-muted); font-size: 14px; }

/* ===== Add IP form ===== */
.add-ip-row {
    display: flex;
    gap: .75rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.add-ip-myip {
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.temp-days-group {
    display: none;
    margin-top: .75rem;
}

.temp-days-row {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-top: .35rem;
}

.temp-days-input {
    width: 80px !important;
}

.temp-days-label {
    font-size: 14px;
    color: var(--color-muted);
}

/* ===== Location badge ===== */
.location-badge {
    display: inline-block;
    font-size: 12px;
    padding: 2px 8px;
    background: #f0f9ff;
    color: #075985;
    border-radius: 20px;
    border: 1px solid #bae6fd;
}

/* ===== Current IP block ===== */
.current-ip-info {
    display: flex;
    flex-direction: column;
    gap: .4rem;
    margin-bottom: 1rem;
}

.current-ip-row {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: 14px;
}

.current-ip-label {
    color: var(--color-muted);
    min-width: 70px;
}

.current-ip-form {
    margin-top: .25rem;
}

/* ===== Label danger (blocked user checkbox) ===== */
.label-danger { color: var(--color-danger) !important; }

/* ===== Responsive ===== */
@media (max-width: 600px) {
    .header-nav { gap: .6rem; }
    .header-user { display: none; }
    .form-row { flex-direction: column; align-items: stretch; }
    .page-header { flex-direction: column; align-items: flex-start; gap: .75rem; }
    .actions { flex-wrap: wrap; }
    .auth-wrap { padding-top: 1.5rem; }
    .card { padding: 1rem; }
}