/* AIcountant Client Portal — Shared Styles */

:root {
    --primary: #1E4A8F;
    --primary-dark: #153A70;
    --primary-light: #E8F0F8;
    --accent: #D97706;
    --text-dark: #0F172A;
    --text-medium: #475569;
    --text-light: #94A3B8;
    --bg-light: #F8FAFC;
    --border: #E2E8F0;
    --error: #DC2626;
    --success: #059669;
    --warning: #D97706;
}

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

body {
    font-family: 'Inter', 'Noto Sans TC', sans-serif;
    background: var(--bg-light);
    color: var(--text-dark);
    min-height: 100vh;
}

/* ── Navbar ── */
.navbar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 0 2rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}
.logo { display: flex; align-items: center; gap: 6px; text-decoration: none; }
.logo-icon {
    background: var(--primary);
    color: #fff;
    font-weight: 700;
    font-size: 13px;
    padding: 4px 7px;
    border-radius: 6px;
}
.logo-text { font-weight: 700; font-size: 1.1rem; color: var(--text-dark); }
.nav-right { display: flex; align-items: center; gap: 16px; }
.user-info { font-size: 0.85rem; color: var(--text-medium); }
.btn-logout {
    padding: 8px 16px;
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.85rem;
    font-family: inherit;
    color: var(--text-medium);
    cursor: pointer;
    transition: all 0.2s;
}
.btn-logout:hover { border-color: var(--primary); color: var(--primary); }

/* ── Login page ── */
.login-page {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}
.login-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    padding: 48px 40px;
    width: 100%;
    max-width: 420px;
}
.login-header { text-align: center; margin-bottom: 32px; }
.login-header h1 { font-size: 1.5rem; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.login-header p { font-size: 0.9rem; color: var(--text-medium); }
.tabs {
    display: flex;
    background: var(--bg-light);
    border-radius: 8px;
    padding: 4px;
    margin-bottom: 24px;
}
.tab {
    flex: 1;
    padding: 8px;
    border: none;
    background: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-medium);
    cursor: pointer;
    transition: all 0.2s;
}
.tab.active {
    background: #fff;
    color: var(--primary);
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}

/* ── Forms ── */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 6px;
}
.form-group input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text-dark);
    transition: border-color 0.2s;
    outline: none;
}
.form-group input:focus { border-color: var(--primary); }
.btn {
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 8px;
}
.btn:hover { background: var(--primary-dark); }
.btn:disabled { background: var(--text-light); cursor: not-allowed; }
.alert {
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 16px;
    display: none;
}
.alert.error { background: #FEF2F2; color: var(--error); border: 1px solid #FECACA; }
.alert.success { background: #F0FDF4; color: var(--success); border: 1px solid #BBF7D0; }
.alert.show { display: block; }
/* ── Hidden utility (replaces inline style="display:none") ── */
.hidden { display: none !important; }

.forgot-link { text-align: right; margin-top: 4px; }
.forgot-link a { font-size: 0.8rem; color: var(--primary); text-decoration: none; }
.forgot-link a:hover { text-decoration: underline; }
.back-link { text-align: center; margin-top: 12px; }
.back-link a { font-size: 0.85rem; color: var(--primary); text-decoration: none; }
.back-link a:hover { text-decoration: underline; }
.divider { text-align: center; font-size: 0.8rem; color: var(--text-light); margin: 8px 0; }

/* ── Language switcher ── */
.lang-switcher { display: flex; gap: 4px; }
.lang-btn {
    padding: 5px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: none;
    font-size: 0.78rem;
    font-family: inherit;
    color: var(--text-medium);
    cursor: pointer;
    transition: all 0.2s;
}
.lang-btn:hover { border-color: var(--primary); color: var(--primary); }
.lang-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ── Loading spinner ── */
.loading-spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-right: 6px;
    vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Dashboard layout ── */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}
.page-header { margin-bottom: 2rem; }
.page-header h1 { font-size: 1.5rem; font-weight: 700; color: var(--text-dark); }
.page-header p { font-size: 0.9rem; color: var(--text-medium); margin-top: 4px; }

/* ── Card & table ── */
.card {
    background: #fff;
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow: hidden;
}
.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.card-header h2 { font-size: 1rem; font-weight: 600; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 12px 24px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-light);
}
td {
    padding: 16px 24px;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-medium);
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-light); }
.amount { font-weight: 600; color: var(--text-dark); }

/* ── Status badges ── */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-pending { background: #FEF9C3; color: #854D0E; }
.badge-paid { background: #DCFCE7; color: #166534; }
.badge-processing { background: #DBEAFE; color: #1E40AF; }
.badge-completed { background: #F0FDF4; color: #166534; }
.badge-cancelled { background: #FEF2F2; color: #991B1B; }

/* ── Empty / loading states ── */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-light);
}
.empty-state svg { margin-bottom: 12px; opacity: 0.4; }
.empty-state p { font-size: 0.9rem; }
.loading-row td { text-align: center; color: var(--text-light); font-size: 0.9rem; padding: 48px; }

/* ── Footer ── */
.footer {
    text-align: center;
    padding: 1.5rem;
    font-size: 0.8rem;
    color: var(--text-light);
}

/* ── Responsive ── */
@media (max-width: 640px) {
    .navbar { padding: 0 1rem; }
    .container { padding: 1.5rem 1rem; }
    th, td { padding: 12px 16px; }
    .user-info { display: none; }
    .login-card { padding: 32px 24px; }
}

/* ── Document management button ── */
.btn-docs {
    padding: 6px 14px;
    background: var(--primary-light);
    color: var(--primary);
    border: 1px solid var(--primary);
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}
.btn-docs:hover { background: var(--primary); color: #fff; }

/* ── Document slide-in panel ── */
.doc-panel-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 200;
}
.doc-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 480px;
    max-width: 100vw;
    height: 100vh;
    background: #fff;
    z-index: 201;
    overflow-y: auto;
    box-shadow: -4px 0 24px rgba(0,0,0,0.12);
    display: flex;
    flex-direction: column;
}
.doc-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: #fff;
    z-index: 1;
}
.doc-panel-header h3 { font-size: 1rem; font-weight: 600; }
.doc-panel-close {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--text-medium);
    padding: 4px 8px;
}
.doc-panel-close:hover { color: var(--text-dark); }
.doc-section { padding: 20px 24px; border-bottom: 1px solid var(--border); }
.doc-section h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 8px; }
.doc-hint { font-size: 0.8rem; color: var(--text-light); margin-bottom: 12px; }

/* ── Upload zone ── */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: 8px;
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-light);
}
.upload-zone:hover, .upload-zone.drag-over {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary);
}
.upload-zone svg { margin-bottom: 8px; }
.upload-zone p { font-size: 0.85rem; }

/* ── Upload progress ── */
.upload-progress { margin-top: 12px; }
.progress-bar {
    height: 6px;
    background: var(--border);
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: 6px;
}
.progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 999px;
    transition: width 0.3s;
    width: 0%;
}
.progress-text { font-size: 0.8rem; color: var(--text-medium); }

/* ── Document list items ── */
.doc-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}
.doc-item:last-child { border-bottom: none; }
.doc-item-icon { font-size: 1.4rem; flex-shrink: 0; }
.doc-item-info { flex: 1; min-width: 0; }
.doc-item-name {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.doc-item-date { font-size: 0.75rem; color: var(--text-light); }
.btn-doc-download {
    padding: 5px 12px;
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.78rem;
    font-family: inherit;
    color: var(--text-medium);
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s;
    flex-shrink: 0;
}
.btn-doc-download:hover { border-color: var(--primary); color: var(--primary); }
.doc-empty, .doc-loading, .doc-error {
    font-size: 0.85rem;
    color: var(--text-light);
    padding: 16px 0;
    text-align: center;
}
.doc-error { color: var(--error); }

@media (max-width: 640px) {
    .doc-panel { width: 100vw; }
}