/* ==========================================================================
   THEME 3: FORMAL CORPORATE
   Style: Professional, Trustworthy, Structured, Clean
   ========================================================================== */

:root {
    --formal-primary: #1e3a8a; /* Navy Blue */
    --formal-secondary: #334155; /* Slate */
    --formal-accent: #2563eb; /* Royal Blue */
    --formal-bg: #f8fafc;
    --formal-text: #0f172a;
    --formal-text-light: #64748b;
    --formal-border: #e2e8f0;
}

body {
    background-color: var(--formal-bg);
    color: var(--formal-text);
    font-family: 'Sarabun', sans-serif; /* Formal Thai font */
}

.formal-wrapper {
    padding-bottom: 80px;
}

/* ===== HERO SLIDER (1200x600) ===== */
.formal-hero-container {
    max-width: 1200px;
    margin: 0 auto;
    background: #000;
}

.formal-hero-slider {
    position: relative;
    width: 100%;
    aspect-ratio: 2/1; /* Enforce 1200x600 */
    overflow: hidden;
}

.formal-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.formal-slide.active {
    opacity: 1;
}

.formal-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Slider Controls */
.formal-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.5);
    color: white;
    border: none;
    padding: 15px 10px;
    cursor: pointer;
    transition: background 0.2s;
}
.formal-nav-btn:hover { background: rgba(0,0,0,0.8); }
.formal-prev { left: 0; border-radius: 0 4px 4px 0; }
.formal-next { right: 0; border-radius: 4px 0 0 4px; }

.formal-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.formal-dot {
    width: 12px;
    height: 12px;
    background: rgba(255,255,255,0.5);
    border-radius: 50%;
    border: 1px solid rgba(0,0,0,0.2);
    cursor: pointer;
}
.formal-dot.active { background: white; border-color: black; }

/* ===== MAIN HEADER INFO ===== */
.formal-header-bar {
    background: white;
    border-bottom: 1px solid var(--formal-border);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    margin-bottom: 30px;
}

.formal-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.formal-profile-row {
    display: flex;
    align-items: center;
    gap: 30px;
    padding: 30px 0;
}

.formal-logo {
    width: 100px;
    height: 100px;
    border: 1px solid var(--formal-border);
    padding: 5px;
    background: white;
    flex-shrink: 0;
}
.formal-logo img { width: 100%; height: 100%; object-fit: contain; }

.formal-info { flex: 1; }

.formal-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--formal-primary);
    margin: 0 0 10px 0;
}

.formal-meta {
    display: flex;
    gap: 20px;
    font-size: 14px;
    color: var(--formal-text-light);
}

.formal-badges {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.formal-badge {
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.5px;
    padding: 4px 8px;
    background: var(--formal-bg);
    border: 1px solid var(--formal-border);
    color: var(--formal-secondary);
    font-weight: 600;
}

.formal-cta-group {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}

.formal-btn {
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.formal-btn-primary {
    background: var(--formal-primary);
    color: white;
}
.formal-btn-primary:hover { background: #172554; color: white; }

.formal-btn-outline {
    border-color: var(--formal-border);
    color: var(--formal-secondary);
    background: white;
}
.formal-btn-outline:hover { border-color: var(--formal-primary); color: var(--formal-primary); }

/* ===== LAYOUT GRID ===== */
.formal-grid {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 40px;
}

/* Main content column - fix overflow in grid */
.formal-main {
    min-width: 0;
}

/* ===== TABS ===== */
.formal-tabs {
    border-bottom: 2px solid var(--formal-border);
    display: flex;
    margin-bottom: 30px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.formal-tabs::-webkit-scrollbar {
    display: none;
}

.formal-tab-link {
    padding: 15px 25px;
    font-weight: 600;
    color: var(--formal-text-light);
    background: none;
    border: none;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: color 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
}

.formal-tab-link:hover { color: var(--formal-primary); }
.formal-tab-link.active {
    color: var(--formal-primary);
    border-bottom-color: var(--formal-primary);
}

.formal-tab-content { display: none; }
.formal-tab-content.active { display: block; }

/* ===== SECTIONS ===== */
.formal-section {
    background: white;
    padding: 30px;
    border: 1px solid var(--formal-border);
    margin-bottom: 30px;
}

.formal-section-header {
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--formal-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.formal-heading {
    font-size: 18px;
    font-weight: 700;
    color: var(--formal-secondary);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.formal-text {
    line-height: 1.8;
    color: #334155;
}

.formal-text img {
    max-width: 100%;
    height: auto;
}

/* LISTS & GRIDS */
.formal-check-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.formal-check-item {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 15px;
}
.formal-check-item i { color: var(--formal-accent); margin-top: 4px; }

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

.formal-table th {
    text-align: left;
    padding: 12px;
    background: #f1f5f9;
    color: var(--formal-secondary);
    font-weight: 600;
    border-bottom: 2px solid var(--formal-border);
}

.formal-table td {
    padding: 12px;
    border-bottom: 1px solid var(--formal-border);
}

.formal-tag {
    display: inline-block;
    padding: 8px 16px;
    background: #e2e8f0;
    color: var(--formal-secondary);
    margin: 0 8px 8px 0;
    border-radius: 4px;
    font-size: 14px;
}

.formal-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* SIDEBAR */
.formal-sidebar-box {
    background: white;
    border: 1px solid var(--formal-border);
    border-top: 4px solid var(--formal-primary);
    padding: 25px;
    margin-bottom: 25px;
}

.formal-sidebar-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--formal-text);
}

.formal-contact-row {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 14px;
    color: var(--formal-text-light);
}
.formal-contact-row i { color: var(--formal-primary); width: 20px; text-align: center; margin-top: 8px; flex-shrink: 0; }

.formal-input, .formal-textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--formal-border);
    border-radius: 0;
    margin-bottom: 10px;
    font-family: inherit;
}
.formal-input:focus, .formal-textarea:focus {
    border-color: var(--formal-primary);
    outline: none;
}

.formal-full-btn {
    width: 100%;
    padding: 12px;
    background: var(--formal-primary);
    color: white;
    border: none;
    font-weight: 600;
    cursor: pointer;
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: 0.5px;
}
.formal-full-btn:hover { background: #172554; }

/* REVIEWS */
.formal-review-item {
    padding: 20px 0;
    border-bottom: 1px solid var(--formal-border);
}
.formal-review-item:last-child { border-bottom: none; }

.formal-review-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}
.formal-stars { color: #f59e0b; font-size: 14px; }

/* RESPONSIVE */
@media (max-width: 991px) {
    .formal-grid { grid-template-columns: 1fr; }
    .formal-profile-row { flex-direction: column; text-align: center; }
    .formal-cta-group { align-items: center; width: 100%; }
    .formal-btn { width: 100%; justify-content: center; }
}