/* ============================================================
   SIM PHONG THỦY — BÁT TỰ TÂM AN Theme
   Premium dark gold style
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@600;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root {
    --spt-bg: #0d0d0d;
    --spt-card-bg: #1a1a1a;
    --spt-card-border: rgba(255, 215, 0, 0.15);
    --spt-gold: #d4a017;
    --spt-gold-light: #f0c040;
    --spt-gold-dark: #8b6914;
    --spt-text: #e8e0d0;
    --spt-text-dim: #9a8d7c;
    --spt-red: #c0392b;
    --spt-green: #27ae60;
    --spt-blue: #2980b9;
    --spt-purple: #8e44ad;
    --spt-radius: 12px;
    --spt-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.spt-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 15px 60px;
    font-family: 'Inter', -apple-system, sans-serif;
    color: var(--spt-text);
    background: var(--spt-bg);
    min-height: 100vh;
}

/* ========== HEADER ========== */
.spt-header {
    text-align: center;
    padding: 50px 20px 40px;
    background: linear-gradient(180deg, #1a0f00 0%, #0d0d0d 100%);
    border-bottom: 2px solid var(--spt-card-border);
    margin-bottom: 30px;
    position: relative;
    overflow: hidden;
}

.spt-header::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(ellipse at center top, rgba(212,160,23,0.08) 0%, transparent 70%);
    pointer-events: none;
}

.spt-logo {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--spt-gold);
    box-shadow: 0 0 30px rgba(212,160,23,0.3);
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.spt-title {
    font-family: 'Playfair Display', serif;
    font-size: 36px;
    font-weight: 800;
    color: var(--spt-gold);
    margin: 0 0 8px;
    letter-spacing: 4px;
    position: relative;
    z-index: 1;
    text-shadow: 0 0 20px rgba(212,160,23,0.3);
}

.spt-tagline {
    color: var(--spt-text-dim);
    font-size: 14px;
    margin: 0;
    position: relative;
    z-index: 1;
    letter-spacing: 1px;
}

/* ========== SECTIONS ========== */
.spt-section {
    margin-bottom: 30px;
}

.spt-section-title {
    font-family: 'Playfair Display', serif;
    font-size: 22px;
    font-weight: 700;
    color: var(--spt-gold);
    text-align: center;
    margin: 0 0 25px;
    padding: 15px 0;
    border-bottom: 1px solid var(--spt-card-border);
    position: relative;
}

.spt-section-title .spt-icon {
    margin-right: 8px;
}

.spt-section-title::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--spt-gold);
    border-radius: 2px;
}

/* ========== INTRO ========== */
.spt-intro-content {
    background: var(--spt-card-bg);
    border: 1px solid var(--spt-card-border);
    border-radius: var(--spt-radius);
    padding: 25px 30px;
    line-height: 1.9;
    font-size: 15px;
}

.spt-intro-content strong {
    color: var(--spt-gold-light);
}

.spt-intro-content ul {
    list-style: none;
    padding: 0;
    margin: 15px 0 0;
}

.spt-intro-content li {
    padding: 8px 0;
    border-bottom: 1px dashed rgba(255,255,255,0.05);
}

.spt-intro-content li:last-child {
    border-bottom: none;
}

/* ========== 3 METHOD CARDS ========== */
.spt-methods-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

@media (max-width: 768px) {
    .spt-methods-grid { grid-template-columns: 1fr; }
}

.spt-method-card {
    background: var(--spt-card-bg);
    border: 1px solid var(--spt-card-border);
    border-radius: var(--spt-radius);
    padding: 30px 20px;
    text-align: center;
    transition: all 0.35s;
    position: relative;
    overflow: hidden;
}

.spt-method-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
}

.spt-method-kinhdich::before { background: linear-gradient(90deg, #c0392b, #e74c3c); }
.spt-method-battu::before { background: linear-gradient(90deg, #2980b9, #3498db); }
.spt-method-bcls::before { background: linear-gradient(90deg, #8e44ad, #9b59b6); }

.spt-method-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--spt-shadow);
    border-color: var(--spt-gold);
}

.spt-method-icon {
    font-size: 48px;
    margin-bottom: 12px;
    display: block;
}

.spt-method-card h3 {
    font-family: 'Playfair Display', serif;
    font-size: 18px;
    color: var(--spt-gold-light);
    margin: 0 0 10px;
}

.spt-method-card p {
    font-size: 13px;
    color: var(--spt-text-dim);
    line-height: 1.7;
    margin: 0;
}

/* ========== FORM ========== */
.spt-form-section {
    background: var(--spt-card-bg);
    border: 1px solid var(--spt-card-border);
    border-radius: var(--spt-radius);
    padding: 30px;
}

.spt-form-container {
    max-width: 700px;
    margin: 0 auto;
}

.spt-form-row {
    margin-bottom: 20px;
}

.spt-form-group {
    display: flex;
    flex-direction: column;
}

.spt-form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--spt-text);
    margin-bottom: 8px;
}

.spt-form-full {
    width: 100%;
}

.spt-form-group input[type="tel"],
.spt-form-group input[type="text"],
.spt-form-group input[type="number"] {
    width: 100%;
    box-sizing: border-box;
    height: 50px;
    padding: 0 16px;
    border: 2px solid rgba(255,215,0,0.2);
    border-radius: 10px;
    font-size: 18px;
    font-weight: 600;
    color: var(--spt-gold-light);
    background: rgba(0,0,0,0.3);
    transition: all 0.3s;
    letter-spacing: 2px;
}

.spt-form-group input:focus {
    border-color: var(--spt-gold);
    outline: none;
    box-shadow: 0 0 0 3px rgba(212,160,23,0.15);
}

.spt-form-group input::placeholder {
    color: rgba(255,255,255,0.2);
    font-weight: 400;
    letter-spacing: 1px;
}

.spt-date-inputs,
.spt-time-inputs {
    display: flex;
    gap: 10px;
}

.spt-date-inputs input,
.spt-time-inputs input {
    flex: 1;
    text-align: center;
    letter-spacing: 1px !important;
}

/* Radio buttons */
.spt-form-options {
    display: flex;
    gap: 30px;
}

@media (max-width: 500px) {
    .spt-form-options { flex-direction: column; gap: 15px; }
}

.spt-radio-group {
    display: flex;
    gap: 20px;
}

.spt-radio {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 14px;
    color: var(--spt-text);
}

.spt-radio input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--spt-gold);
    cursor: pointer;
}

/* ========== BUTTONS ========== */
.spt-btn-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 25px;
}

.spt-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    border: 2px solid transparent;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    letter-spacing: 0.5px;
    text-transform: none;
    position: relative;
    overflow: hidden;
}

.spt-btn:active {
    transform: scale(0.97);
}

.spt-btn-icon {
    font-size: 20px;
}

/* Kinh Dịch Button */
.spt-btn-kinhdich {
    background: linear-gradient(135deg, #8B0000, #c0392b);
    color: #ffd700;
    box-shadow: 0 4px 15px rgba(192,57,43,0.3);
}
.spt-btn-kinhdich:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(192,57,43,0.4);
}

/* Bát Tự Button */
.spt-btn-battu {
    background: linear-gradient(135deg, #1a4480, #2980b9);
    color: #ffd700;
    box-shadow: 0 4px 15px rgba(41,128,185,0.3);
}
.spt-btn-battu:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(41,128,185,0.4);
}

/* Bát Cực Linh Số Button */
.spt-btn-bcls {
    background: linear-gradient(135deg, #5b2c6f, #8e44ad);
    color: #ffd700;
    box-shadow: 0 4px 15px rgba(142,68,173,0.3);
}
.spt-btn-bcls:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(142,68,173,0.4);
}

/* Batch Button */
.spt-btn-batch {
    background: linear-gradient(135deg, #1a5e2a, #27ae60);
    color: #ffd700;
    box-shadow: 0 4px 15px rgba(39,174,96,0.3);
    width: 100%;
    justify-content: center;
    margin-top: 15px;
    padding: 16px 30px;
    font-size: 17px;
}
.spt-btn-batch:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(39,174,96,0.4);
}

/* ========== BATCH SECTION ========== */
.spt-batch-section {
    background: var(--spt-card-bg);
    border: 1px solid var(--spt-card-border);
    border-radius: var(--spt-radius);
    padding: 30px;
}

.spt-batch-desc {
    color: var(--spt-text-dim);
    font-size: 14px;
    text-align: center;
    margin: 0 0 20px;
    line-height: 1.7;
}

.spt-batch-form textarea {
    width: 100%;
    box-sizing: border-box;
    min-height: 150px;
    padding: 16px;
    border: 2px solid rgba(255,215,0,0.2);
    border-radius: 10px;
    background: rgba(0,0,0,0.3);
    color: var(--spt-gold-light);
    font-family: 'Inter', monospace;
    font-size: 16px;
    letter-spacing: 1px;
    line-height: 1.8;
    resize: vertical;
    transition: border-color 0.3s;
}

.spt-batch-form textarea:focus {
    border-color: var(--spt-gold);
    outline: none;
    box-shadow: 0 0 0 3px rgba(212,160,23,0.15);
}

.spt-batch-form textarea::placeholder {
    color: rgba(255,255,255,0.2);
}

/* ========== RESULT AREA ========== */
#spt-result-area {
    animation: sptSlideIn 0.5s ease;
}

@keyframes sptSlideIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Result Tabs */
.spt-result-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--spt-card-border);
    margin-bottom: 25px;
}

.spt-tab {
    flex: 1;
    padding: 14px 20px;
    background: transparent;
    border: none;
    color: var(--spt-text-dim);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
    text-align: center;
}

.spt-tab:hover {
    color: var(--spt-gold-light);
    background: rgba(255,215,0,0.05);
}

.spt-tab.active {
    color: var(--spt-gold);
    border-bottom-color: var(--spt-gold);
    background: rgba(255,215,0,0.08);
}

.spt-tab-content {
    display: none;
}

.spt-tab-content.active {
    display: block;
    animation: sptSlideIn 0.3s ease;
}

/* ========== TABLES ========== */
.spt-table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
    font-size: 14px;
    background: var(--spt-card-bg);
    border-radius: 8px;
    overflow: hidden;
}

.spt-table th {
    background: linear-gradient(135deg, #1a0f00, #2a1a00);
    color: var(--spt-gold);
    padding: 12px 15px;
    text-align: center;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--spt-gold-dark);
}

.spt-table td {
    padding: 10px 15px;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    color: var(--spt-text);
}

.spt-table tr:hover td {
    background: rgba(255,215,0,0.03);
}

.spt-table .spt-dong-hao {
    color: #e74c3c;
    font-weight: bold;
}

/* ========== HEXAGRAM VISUAL ========== */
.spt-hex-row {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
    margin: 20px 0;
}

.spt-hex-visual {
    background: var(--spt-card-bg);
    border: 1px solid var(--spt-card-border);
    border-radius: var(--spt-radius);
    padding: 20px 30px;
    text-align: center;
    min-width: 160px;
}

.spt-hex-label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--spt-gold);
    letter-spacing: 2px;
    margin-bottom: 6px;
}

.spt-hex-name {
    font-family: 'Playfair Display', serif;
    font-size: 16px;
    font-weight: 700;
    color: var(--spt-gold-light);
    margin-bottom: 4px;
}

/* Line visuals */
.spt-hex-lines { display: flex; flex-direction: column; align-items: center; gap: 5px; }
.spt-line-solid { width: 70px; height: 7px; background: var(--spt-gold); border-radius: 2px; }
.spt-line-broken { display: flex; gap: 10px; }
.spt-line-broken span { width: 30px; height: 7px; background: var(--spt-gold); border-radius: 2px; }
.spt-line-dong .spt-line-solid,
.spt-line-dong .spt-line-broken span { background: #e74c3c; }

/* ========== SCORE CARDS ========== */
.spt-scores-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.spt-score-card {
    background: var(--spt-card-bg);
    border: 1px solid var(--spt-card-border);
    border-radius: var(--spt-radius);
    padding: 20px;
    text-align: center;
}

.spt-score-label {
    font-size: 13px;
    color: var(--spt-text-dim);
    margin-bottom: 8px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.spt-score-value {
    font-size: 28px;
    font-weight: 800;
    font-family: 'Playfair Display', serif;
}

.spt-score-bar {
    width: 100%;
    height: 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    margin-top: 10px;
    overflow: hidden;
}

.spt-score-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 1s ease;
}

.spt-score-excellent .spt-score-value { color: #2ecc71; }
.spt-score-excellent .spt-score-fill { background: #2ecc71; }
.spt-score-good .spt-score-value { color: #27ae60; }
.spt-score-good .spt-score-fill { background: #27ae60; }
.spt-score-average .spt-score-value { color: #f39c12; }
.spt-score-average .spt-score-fill { background: #f39c12; }
.spt-score-poor .spt-score-value { color: #e74c3c; }
.spt-score-poor .spt-score-fill { background: #e74c3c; }

/* ========== RAW TEXT ========== */
.spt-raw-text {
    margin: 20px 0;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--spt-card-border);
    border-radius: var(--spt-radius);
    padding: 20px;
}

.spt-raw-text h4 {
    color: var(--spt-gold);
    margin: 0 0 10px;
    font-size: 14px;
}

.spt-raw-textarea {
    width: 100%;
    box-sizing: border-box;
    min-height: 200px;
    padding: 15px;
    background: rgba(0,0,0,0.4);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    color: var(--spt-text);
    font-family: 'Inter', monospace;
    font-size: 13px;
    line-height: 1.6;
    resize: vertical;
}

.spt-copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 10px;
    padding: 8px 20px;
    background: var(--spt-gold-dark);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s;
}

.spt-copy-btn:hover {
    background: var(--spt-gold);
    color: #000;
}

/* ========== ANALYSIS COMMENTARY ========== */
.spt-analysis-box {
    background: var(--spt-card-bg);
    border: 1px solid var(--spt-card-border);
    border-radius: var(--spt-radius);
    padding: 25px;
    margin: 20px 0;
}

.spt-analysis-title {
    font-family: 'Playfair Display', serif;
    font-size: 18px;
    color: var(--spt-gold);
    margin: 0 0 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--spt-card-border);
    text-align: center;
}

.spt-eval-item {
    padding: 15px;
    margin-bottom: 12px;
    background: rgba(0,0,0,0.2);
    border-radius: 8px;
    border-left: 4px solid var(--spt-gold);
}

.spt-eval-item h5 {
    font-size: 15px;
    color: var(--spt-gold-light);
    margin: 0 0 6px;
}

.spt-eval-item p {
    font-size: 14px;
    color: var(--spt-text-dim);
    margin: 0 0 8px;
    line-height: 1.7;
}

/* ========== BCLS CHART ========== */
.spt-bcls-pairs {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    justify-content: center;
    margin: 15px 0;
}

.spt-bcls-pair {
    padding: 8px 14px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 15px;
    text-align: center;
    min-width: 50px;
    transition: transform 0.2s;
}

.spt-bcls-pair:hover { transform: scale(1.1); }

.spt-bcls-cat { background: rgba(39,174,96,0.2); color: #2ecc71; border: 1px solid rgba(39,174,96,0.3); }
.spt-bcls-hung { background: rgba(231,76,60,0.2); color: #e74c3c; border: 1px solid rgba(231,76,60,0.3); }
.spt-bcls-neutral { background: rgba(255,255,255,0.05); color: var(--spt-text-dim); border: 1px solid rgba(255,255,255,0.1); }

.spt-bcls-stat {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 15px 0;
}

.spt-bcls-stat-item {
    text-align: center;
}

.spt-bcls-stat-label {
    font-size: 12px;
    color: var(--spt-text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.spt-bcls-stat-value {
    font-size: 24px;
    font-weight: 800;
    font-family: 'Playfair Display', serif;
}

/* ========== BATCH RANKING TABLE ========== */
.spt-rank-table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
}

.spt-rank-table th {
    background: linear-gradient(135deg, #1a0f00, #2a1a00);
    color: var(--spt-gold);
    padding: 12px;
    text-align: center;
    font-size: 13px;
    font-weight: 600;
}

.spt-rank-table td {
    padding: 10px 12px;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-size: 14px;
    color: var(--spt-text);
}

.spt-rank-table tr:first-child td {
    background: rgba(212,160,23,0.1);
    font-weight: 700;
}

.spt-rank-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 700;
}

.spt-rank-1 { background: #ffd700; color: #000; }
.spt-rank-2 { background: #c0c0c0; color: #000; }
.spt-rank-3 { background: #cd7f32; color: #fff; }

/* ========== NGŨ HÀNH COLORS ========== */
.spt-element-kim { color: #f1c40f; }
.spt-element-moc { color: #2ecc71; }
.spt-element-thuy { color: #3498db; }
.spt-element-hoa { color: #e74c3c; }
.spt-element-tho { color: #e67e22; }

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .spt-title { font-size: 28px; letter-spacing: 2px; }
    .spt-methods-grid { grid-template-columns: 1fr; }
    .spt-btn-row { flex-direction: column; }
    .spt-btn { width: 100%; justify-content: center; }
    .spt-hex-row { gap: 15px; }
    .spt-hex-visual { min-width: 130px; }
    .spt-scores-grid { grid-template-columns: repeat(2, 1fr); }
    .spt-form-section { padding: 20px 15px; }
    .spt-result-tabs { flex-wrap: wrap; }
    .spt-tab { font-size: 12px; padding: 10px; }
}

/* ========== LOADING ========== */
.spt-loading {
    text-align: center;
    padding: 40px;
}

.spt-spinner {
    display: inline-block;
    width: 40px; height: 40px;
    border: 3px solid rgba(255,215,0,0.2);
    border-top-color: var(--spt-gold);
    border-radius: 50%;
    animation: sptSpin 0.8s linear infinite;
}

@keyframes sptSpin {
    to { transform: rotate(360deg); }
}

/* BAZI 5 ELEMENTS PENTAGON */
.spt-pentagon-chart {
    position: relative;
    width: 220px;
    height: 220px;
    margin: 0 auto;
}

.spt-pentagon-element {
    position: absolute;
    font-size: 13px;
    font-weight: 700;
    text-align: center;
}

/* Tứ Trụ grid */
.spt-tu-tru-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin: 15px 0;
}

.spt-tu-tru-col {
    text-align: center;
    background: var(--spt-card-bg);
    border: 1px solid var(--spt-card-border);
    border-radius: 8px;
    padding: 12px 8px;
}

.spt-tu-tru-title {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--spt-text-dim);
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.spt-tu-tru-can,
.spt-tu-tru-chi {
    font-size: 22px;
    font-weight: 800;
    padding: 4px 0;
}

.spt-total-score {
    text-align: center;
    padding: 20px;
    margin: 20px 0;
    background: var(--spt-card-bg);
    border: 2px solid var(--spt-gold);
    border-radius: var(--spt-radius);
}

.spt-total-score-label {
    font-size: 14px;
    color: var(--spt-text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.spt-total-score-value {
    font-family: 'Playfair Display', serif;
    font-size: 48px;
    font-weight: 800;
    color: var(--spt-gold);
}

.spt-total-score-max {
    font-size: 16px;
    color: var(--spt-text-dim);
}