/* Trade Signal Assistant V1 — Vanilla CSS, Mobile First */

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: "Segoe UI", "Sarabun", "Tahoma", sans-serif;
    background-color: #f4f6f8;
    color: #1f2937;
    line-height: 1.6;
}

a {
    color: #2563eb;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.page-narrow {
    max-width: 480px;
    margin: 0 auto;
    padding: 24px 16px 48px;
}

.app-title {
    font-size: 1.4rem;
    text-align: center;
    margin: 8px 0 0;
    color: #111827;
}

.app-title-small {
    font-weight: 600;
    font-size: 1rem;
}

.app-subtitle {
    font-size: 1.1rem;
    text-align: center;
    margin: 4px 0 20px;
    color: #4b5563;
    font-weight: 500;
}

.card {
    background: #ffffff;
    border-radius: 10px;
    padding: 18px;
    margin-bottom: 16px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

fieldset {
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    margin-bottom: 16px;
    padding: 12px 14px 16px;
}

legend {
    padding: 0 6px;
    font-weight: 600;
    color: #374151;
}

label {
    display: block;
    margin-top: 12px;
    margin-bottom: 4px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #374151;
}

input[type="text"],
input[type="password"],
input[type="number"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 1rem;
    background: #f9fafb;
}

input:focus {
    outline: none;
    border-color: #2563eb;
    background: #ffffff;
}

.btn {
    display: inline-block;
    margin-top: 18px;
    padding: 12px 20px;
    background-color: #2563eb;
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    text-align: center;
}

.btn:hover {
    background-color: #1d4ed8;
    text-decoration: none;
}

.alert {
    border-radius: 8px;
    padding: 14px 16px;
    margin-bottom: 16px;
    font-size: 0.92rem;
}

.alert ul {
    margin: 0;
    padding-left: 20px;
}

.alert-error {
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.alert-success {
    background-color: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
}

.alert-warning {
    background-color: #fffbeb;
    border: 1px solid #fde68a;
    color: #92400e;
}

.alert-info {
    background-color: #eff6ff;
    border: 1px solid #bfdbfe;
    color: #1e40af;
}

.hint {
    font-size: 0.85rem;
    color: #6b7280;
}

.check-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.check-table td {
    padding: 8px 6px;
    border-bottom: 1px solid #f0f0f0;
}

.check-ok td:last-child {
    color: #16a34a;
    font-weight: 600;
}

.check-fail td:last-child {
    color: #dc2626;
    font-weight: 600;
}

.check-warn td:last-child {
    color: #d97706;
    font-weight: 600;
}

/* Utility classes สำหรับใช้กับ <span> โดยตรง (ไม่ต้องพึ่ง parent selector) */
.text-ok {
    color: #16a34a;
    font-weight: 600;
}

.text-warn {
    color: #d97706;
    font-weight: 600;
}

.text-fail {
    color: #dc2626;
    font-weight: 600;
}

/* --- Dashboard layout --- */

.topbar {
    background: #111827;
    color: #f9fafb;
    padding: 12px 16px;
}

.topbar-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.topbar-user a {
    color: #93c5fd;
}

.mainnav {
    background: #1f2937;
    display: flex;
    overflow-x: auto;
    white-space: nowrap;
}

.mainnav a {
    color: #d1d5db;
    padding: 12px 16px;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.mainnav a.active {
    color: #ffffff;
    background: #2563eb;
    font-weight: 600;
}

.mainnav a:hover {
    text-decoration: none;
    background: #374151;
}

.page {
    max-width: 960px;
    margin: 0 auto;
    padding: 20px 16px 48px;
}

.status-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.status-card {
    background: #ffffff;
    border-radius: 10px;
    padding: 16px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    border-left: 4px solid #9ca3af;
}

.status-card.status-ok {
    border-left-color: #16a34a;
}

.status-card.status-fail {
    border-left-color: #dc2626;
}

.status-label {
    display: block;
    font-size: 0.82rem;
    color: #6b7280;
    margin-bottom: 6px;
}

.status-value {
    display: block;
    font-size: 1.05rem;
    font-weight: 600;
    color: #111827;
}

@media (min-width: 640px) {
    .status-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .status-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}