/**
 * Ocean Forecast — dark-ocean theme
 * Used by malaysia.php and penglai.php; matches index.html and live.php aesthetics.
 */

:root {
    --petronas-teal: #00b8b8;
    --petronas-teal-dark: #008a8a;
    --ocean-deep: #0a1e3c;
    --accent-purple: #6a1b9a;
    --soft-white: rgba(255, 255, 255, 0.92);
    --muted-white: rgba(255, 255, 255, 0.62);
    --card-border: rgba(0, 184, 184, 0.35);
    --card-bg: rgba(255, 255, 255, 0.04);
    --field-bg: rgba(255, 255, 255, 0.05);
    --field-border: rgba(255, 255, 255, 0.12);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { min-height: 100%; }

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--soft-white);
    background:
        radial-gradient(1200px 800px at 12% 5%,  rgba(0, 184, 184, 0.22), transparent 60%),
        radial-gradient(1000px 700px at 88% 92%, rgba(106, 27, 154, 0.22), transparent 55%),
        linear-gradient(180deg, var(--ocean-deep) 0%, #051128 100%);
    overflow-x: hidden;
    line-height: 1.55;
}

/* ===================== Animated bottom waves ===================== */
.ocean-waves {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    height: 160px;
    pointer-events: none;
    opacity: 0.22;
    z-index: 0;
}
.ocean-waves svg { width: 100%; height: 100%; display: block; }
.wave-a { animation: drift 14s linear infinite; }
.wave-b { animation: drift 22s linear infinite reverse; opacity: 0.6; }
@keyframes drift { 0% { transform: translateX(0); } 100% { transform: translateX(-1440px); } }

/* ===================== Sticky top nav ===================== */
.topnav {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 18px 40px;
    background: linear-gradient(180deg, rgba(10, 30, 60, 0.85) 0%, rgba(10, 30, 60, 0.70) 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
}
.topnav .brand {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
    color: inherit;
}
.brand-plate {
    width: 56px; height: 56px;
    border-radius: 12px;
    display: grid; place-items: center;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--card-border);
    box-shadow: 0 6px 18px -8px rgba(0, 184, 184, 0.6), 0 0 0 1px rgba(0, 184, 184, 0.15);
    flex-shrink: 0;
}
.brand-plate img { height: 36px; width: auto; display: block; }
.wordmark { display: flex; flex-direction: column; line-height: 1.15; }
.wordmark small {
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--muted-white);
    text-transform: uppercase;
}
.wordmark strong {
    font-size: 18px;
    font-weight: 600;
    color: var(--soft-white);
}
.topnav .nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
}
.topnav .nav-links a {
    position: relative;
    padding: 8px 14px;
    color: var(--muted-white);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 500;
    letter-spacing: 0.6px;
    border-radius: 8px;
    transition: color 0.2s ease, background 0.2s ease;
}
.topnav .nav-links a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.04);
}
.topnav .nav-links a.active { color: #fff; }
.topnav .nav-links a.active::after {
    content: "";
    position: absolute;
    left: 14px; right: 14px;
    bottom: -2px;
    height: 2px;
    background: linear-gradient(90deg, var(--petronas-teal), transparent);
}
.topnav .nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px;
    margin-left: 18px;
    border-radius: 10px;
    background: rgba(0, 184, 184, 0.08);
    border: 1px solid var(--card-border);
    color: var(--soft-white);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.topnav .nav-cta:hover {
    background: linear-gradient(135deg, var(--petronas-teal) 0%, var(--petronas-teal-dark) 100%);
    border-color: transparent;
    color: #fff;
    transform: translateY(-1px);
}
.topnav .nav-cta i { color: var(--petronas-teal); transition: color 0.2s ease; }
.topnav .nav-cta:hover i { color: #fff; }

/* ===================== Page sub-header (status row, optional) ===================== */
.page-subhead {
    position: relative;
    z-index: 2;
    padding: 14px 40px;
    display: flex;
    align-items: center;
    gap: 14px;
    justify-content: flex-end;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(4px);
}
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 184, 184, 0.1);
    border: 1px solid var(--card-border);
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 12.5px;
    color: var(--soft-white);
    letter-spacing: 0.4px;
}
.status-badge i { color: var(--petronas-teal); }

/* ===================== Container + layout ===================== */
.container {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 32px 40px 80px;
}

.main-content {
    display: grid;
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 28px;
}

/* ===================== Sidebar (academic / publication-style card) ===================== */
.sidebar {
    --paper-ink: #1a1a1a;
    --paper-muted: #555;
    --paper-rule: #d0d0d0;
    --paper-accent: #0b4f7a;
    --paper-soft: #f4f7f9;

    background: #ffffff;
    color: var(--paper-ink);
    border: 1px solid var(--paper-rule);
    border-radius: 6px;
    padding: 24px 22px 22px;
    box-shadow: 0 14px 40px -22px rgba(0, 0, 0, 0.55);
    align-self: start;
    position: sticky;
    top: 110px;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}
.sidebar h3 {
    font-size: 15.5px;
    font-weight: 600;
    color: var(--paper-accent) !important;     /* override inline style="color:#1e3c72" */
    margin: 0 0 18px !important;
    padding-bottom: 8px;
    border-bottom: 1.5px solid var(--paper-accent);
    letter-spacing: -0.1px;
}

.sidebar .form-group { margin-bottom: 16px; }
.sidebar .form-group label {
    display: block;
    margin-bottom: 7px;
    font-weight: 600;
    color: var(--paper-ink);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.4px;
}

.sidebar .form-group select,
.sidebar .form-group .date-input,
.sidebar .form-group input[type="text"],
.sidebar .form-group input[type="number"] {
    width: 100%;
    padding: 9px 10px;
    background: #ffffff;
    color: var(--paper-ink);
    border: 1px solid var(--paper-rule);
    border-radius: 4px;
    font-size: 13px;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.sidebar .form-group select:focus,
.sidebar .form-group .date-input:focus,
.sidebar .form-group input:focus {
    outline: none;
    border-color: var(--paper-accent);
    box-shadow: 0 0 0 3px rgba(11, 79, 122, 0.12);
}
.sidebar .form-group select option {
    background: #ffffff;
    color: var(--paper-ink);
}
.sidebar .form-group small {
    color: var(--paper-muted) !important;       /* override inline style="color:#666" */
    font-size: 11.5px;
    margin-top: 6px;
    display: block;
    line-height: 1.45;
}

.sidebar .radio-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.sidebar .radio-option {
    display: flex;
    align-items: center;
    padding: 8px 10px;
    background: var(--paper-soft);
    border: 1px solid var(--paper-rule);
    border-radius: 4px;
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease;
    font-size: 12.5px;
    color: var(--paper-ink);
}
.sidebar .radio-option:hover {
    border-color: var(--paper-accent);
    background: #eaf1f6;
}
.sidebar .radio-option input[type="radio"] {
    margin-right: 8px;
    width: 14px; height: 14px;
    cursor: pointer;
    accent-color: var(--paper-accent);
}
.sidebar .radio-option:has(input[type="radio"]:checked) {
    border-color: var(--paper-accent);
    background: #e6f0f7;
    box-shadow: inset 0 0 0 1px var(--paper-accent);
}
.sidebar .radio-option input[type="radio"]:checked + span {
    color: var(--paper-accent);
    font-weight: 600;
}

.sidebar .btn-primary {
    width: 100%;
    padding: 11px;
    background: var(--paper-accent);
    color: #fff;
    border: 1px solid var(--paper-accent);
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    cursor: pointer;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.sidebar .btn-primary:hover {
    background: #0d5e92;
    transform: translateY(-1px);
    box-shadow: 0 8px 22px -10px rgba(11, 79, 122, 0.55);
}
.sidebar .btn-primary:active { transform: translateY(0); }
.sidebar .btn-primary:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

.sidebar .info-box {
    margin-top: 22px;
    padding: 12px 14px;
    background: var(--paper-soft);
    border-left: 4px solid var(--paper-accent);
    border-radius: 0 4px 4px 0;
    font-size: 12px;
    line-height: 1.55;
    color: var(--paper-ink);
}
.sidebar .info-box h4 {
    margin-bottom: 6px;
    color: var(--paper-accent);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 700;
}
.sidebar .info-box p { color: var(--paper-ink); }
.sidebar .info-box strong { color: var(--paper-accent); }

/* ===================== Content area + chart card ===================== */
.content-area {
    min-width: 0;
}

/* ===================== Chart card (academic, publication-style) ===================== */
.chart-container {
    --paper-ink: #1a1a1a;
    --paper-muted: #555;
    --paper-rule: #d0d0d0;
    --paper-accent: #0b4f7a;
    --paper-soft: #f4f7f9;

    position: relative;
    background: #ffffff;
    color: var(--paper-ink);
    border: 1px solid var(--paper-rule);
    border-radius: 6px;
    padding: 28px 32px 26px;
    overflow: hidden;
    box-shadow: 0 14px 40px -22px rgba(0, 0, 0, 0.55);
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}
.chart-container + .chart-container { margin-top: 22px; }

.chart-container .chart-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--paper-accent);
    margin: 0 0 4px;
    padding-bottom: 8px;
    border-bottom: 1.5px solid var(--paper-accent);
    letter-spacing: -0.1px;
}
.chart-container .chart-subtitle {
    font-size: 12.5px;
    color: var(--paper-muted);
    margin: 4px 0 18px;
    font-style: italic;
}

#forecastChart { width: 100%; height: 380px !important; max-height: 380px !important; }
#errorChart { width: 100%; height: 150px !important; max-height: 150px !important; }
.chart-container canvas { display: block; }

#dailyStatsContainer h3 {
    color: var(--paper-accent) !important;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

/* ===================== Metric cards (publication panels) ===================== */
.chart-container .metrics-container {
    display: flex;
    gap: 12px;
    margin-top: 22px;
    flex-wrap: wrap;
    padding-top: 16px;
    border-top: 1px solid var(--paper-rule);
}
.chart-container .metric-card {
    flex: 1 1 140px;
    background: var(--paper-soft);
    border: 1px solid var(--paper-rule);
    padding: 12px 14px;
    border-radius: 4px;
    text-align: center;
}
.chart-container .metric-label {
    font-size: 10px;
    color: var(--paper-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 6px;
    line-height: 1.35;
    font-weight: 600;
}
.chart-container .metric-label span { color: var(--paper-muted) !important; opacity: 0.85; }
.chart-container .metric-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--paper-accent);
    letter-spacing: -0.3px;
    font-variant-numeric: tabular-nums;
}

/* ===================== Welcome / Error / Loading ===================== */
.welcome-message {
    text-align: center;
    padding: 80px 24px;
    color: var(--muted-white);
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
}
.welcome-message h2 {
    font-size: 22px;
    color: #fff;
    margin-bottom: 12px;
}
.welcome-message p { font-size: 14px; }

.error-message {
    background: rgba(255, 80, 80, 0.08);
    border: 1px solid rgba(255, 80, 80, 0.3);
    color: #ff8a8a;
    padding: 13px 16px;
    border-radius: 10px;
    margin-bottom: 18px;
    display: none;
    font-size: 13px;
}
.error-message.active { display: block; }

.loading-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(5, 17, 40, 0.78);
    backdrop-filter: blur(4px);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}
.loading-overlay.active { display: flex; }
.loading-spinner {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    padding: 36px 44px;
    border-radius: 14px;
    text-align: center;
    color: var(--soft-white);
}
.spinner {
    border: 3px solid rgba(0, 184, 184, 0.2);
    border-top: 3px solid var(--petronas-teal);
    border-radius: 50%;
    width: 44px; height: 44px;
    animation: spin 1s linear infinite;
    margin: 0 auto 18px;
}
@keyframes spin { 0% { transform: rotate(0); } 100% { transform: rotate(360deg); } }

/* ===================== Footer ===================== */
.site-footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 24px 16px;
    font-size: 12px;
    color: var(--muted-white);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(6px);
}
.site-footer strong { color: var(--soft-white); }
.site-footer a {
    color: inherit;
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
}

/* ===================== Responsive ===================== */
@media (max-width: 900px) {
    .topnav { flex-wrap: wrap; gap: 12px; padding: 14px 20px; }
    .topnav .nav-links { margin-left: 0; flex-wrap: wrap; }
    .topnav .nav-cta { margin-left: 0; }
    .container { padding: 24px 20px 80px; }
    .main-content { grid-template-columns: 1fr; }
    .sidebar { position: static; }
}

@media (max-width: 480px) {
    .wordmark strong { font-size: 16px; }
    .chart-title { font-size: 17px; }
    .metric-value { font-size: 18px; }
    #forecastChart { height: 280px !important; max-height: 280px !important; }
}