/* ═══════════════════════════════════════
   PV DRILLING CULTURE HANDBOOK - Styles
   ═══════════════════════════════════════ */

/* ── Hero ── */
.pvdc-hero {
    position: relative;
    min-height: 380px;
    background: linear-gradient(135deg, #0d2137 0%, #1a3a5c 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.pvdc-hero-overlay {
    position: absolute;
    inset: 0;
    background: url('/pvdo_culture/img/background.jpg') center/cover no-repeat;
    opacity: 0.18;
}
.pvdc-hero-content {
    position: relative;
    text-align: center;
    color: #fff;
    padding: 60px 20px;
    max-width: 860px;
}
.pvdc-hero-label {
    font-size: 0.85rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.6);
    margin-bottom: 18px;
}
.pvdc-hero-title {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.15;
    margin: 0 0 18px 0;
    text-shadow: 2px 4px 12px rgba(0,0,0,0.5);
    letter-spacing: 1px;
}
.pvdc-hero-title span {
    color: #e8332a;
}
.pvdc-hero-sub {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.55);
    margin: 0;
    letter-spacing: 1px;
}

/* ── Sections ── */
.pvdc-section { padding: 70px 0; }
.pvdc-section--white { background: #ffffff; }
.pvdc-section--light  { background: #f5f6f8; }

.pvdc-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Chapter Header ── */
.pvdc-chapter-header {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 36px;
}
.pvdc-chapter-accent {
    width: 6px;
    min-width: 6px;
    height: 48px;
    background: #e8332a;
    border-radius: 3px;
    margin-top: 4px;
}
.pvdc-chapter-title {
    font-size: 2rem;
    font-weight: 800;
    color: #1a2e44;
    margin: 0;
    line-height: 1.2;
}

/* ── Foreword ── */
.pvdc-foreword-text p {
    font-size: 1.05rem;
    line-height: 1.9;
    color: #3a4a5c;
    margin: 0 0 18px 0;
}
.pvdc-foreword-text strong { color: #e8332a; }

/* ── Lead text ── */
.pvdc-lead-text {
    font-size: 1.02rem;
    line-height: 1.85;
    color: #3a4a5c;
    margin: 0 0 32px 0;
}

/* ── Core Values tagline ── */
.pvdc-cv-tagline {
    font-size: 1.3rem;
    font-weight: 700;
    color: #e8332a;
    line-height: 1.9;
    margin-bottom: 20px;
}

/* ── Vision / Mission / Slogan ── */
.pvdc-vms-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 10px;
}
.pvdc-vms-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-top: 4px solid #e8332a;
    border-radius: 10px;
    padding: 30px 24px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.pvdc-vms-icon {
    font-size: 2.2rem;
    margin-bottom: 14px;
}
.pvdc-vms-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #e8332a;
    margin: 0 0 12px 0;
}
.pvdc-vms-card p {
    font-size: 0.95rem;
    line-height: 1.75;
    color: #4a5568;
    margin: 0;
}

/* ── Value Blocks (Core Values detail) ── */
.pvdc-value-block {
    border-left: 4px solid #1483BE;
    padding: 24px 24px 24px 28px;
    margin-bottom: 32px;
    background: #fafbfc;
    border-radius: 0 8px 8px 0;
}
.pvdc-value-block-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}
.pvdc-value-icon-wrap {
    width: 40px;
    height: 40px;
    background: #e8332a;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.pvdc-value-num {
    color: #fff;
    font-weight: 800;
    font-size: 1rem;
}
.pvdc-value-block-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1a2e44;
    margin: 0;
}
.pvdc-value-block p {
    font-size: 0.97rem;
    line-height: 1.8;
    color: #3a4a5c;
    margin: 0 0 14px 0;
}
.pvdc-sub-items { display: flex; flex-direction: column; gap: 10px; }
.pvdc-sub-item {
    font-size: 0.95rem;
    line-height: 1.8;
    color: #3a4a5c;
    padding-left: 14px;
    border-left: 2px solid #e2e8f0;
}
.pvdc-sub-item strong { color: #1a2e44; }

/* ── Principles ── */
.pvdc-principle-banner {
    background: #1483BE;
    border-radius: 10px;
    padding: 28px 32px;
    margin-bottom: 36px;
    color: #fff;
    text-align: center;
}
.pvdc-principle-quote {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 12px;
    color: #fff;
}
.pvdc-principle-banner p {
    font-size: 0.97rem;
    line-height: 1.8;
    color: rgba(255,255,255,0.88);
    margin: 0;
}
.pvdc-principles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.pvdc-principle-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 28px 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.pvdc-principle-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: #e8332a;
    color: #fff;
    font-weight: 800;
    font-size: 1rem;
    border-radius: 50%;
    margin-bottom: 12px;
}
.pvdc-principle-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: #1a2e44;
    margin: 0 0 10px 0;
}
.pvdc-principle-card p {
    font-size: 0.93rem;
    line-height: 1.8;
    color: #3a4a5c;
    margin: 0 0 12px 0;
}
.pvdc-principle-card ul {
    margin: 0;
    padding-left: 20px;
}
.pvdc-principle-card ul li {
    font-size: 0.93rem;
    line-height: 1.8;
    color: #3a4a5c;
    margin-bottom: 6px;
}

/* ── Conduct cards ── */
.pvdc-conduct-grid {
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.pvdc-conduct-card {
    background: #fafbfc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 28px 28px 24px;
}
.pvdc-conduct-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid #e2e8f0;
}
.pvdc-conduct-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    background: #1483BE;
    color: #fff;
    font-weight: 800;
    font-size: 0.95rem;
    border-radius: 50%;
    flex-shrink: 0;
}
.pvdc-conduct-card-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1a2e44;
    margin: 0;
}
.pvdc-conduct-card p,
.pvdc-conduct-card ul li {
    font-size: 0.95rem;
    line-height: 1.85;
    color: #3a4a5c;
}
.pvdc-conduct-card ul {
    margin: 0;
    padding-left: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.pvdc-conduct-card ul li {
    padding-left: 14px;
    border-left: 3px solid #e8332a;
}
.pvdc-conduct-card ul li strong { color: #1a2e44; }

/* ── Etiquette ── */
.pvdc-etiquette-section {
    margin-bottom: 50px;
}
.pvdc-etiquette-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #e8332a;
    margin: 0 0 16px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid #e2e8f0;
}
.pvdc-etiquette-section > p {
    font-size: 0.97rem;
    line-height: 1.85;
    color: #3a4a5c;
    margin: 0 0 24px 0;
}
.pvdc-etiquette-subsections {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.pvdc-etiquette-sub {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 22px 20px;
}
.pvdc-etiquette-sub--full {
    grid-column: 1 / -1;
}
.pvdc-etiquette-sub-title {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: #1483BE;
    border-bottom: 2px solid #1483BE;
    padding-bottom: 8px;
    margin-bottom: 14px;
}
.pvdc-etiquette-sub ul {
    margin: 0;
    padding-left: 18px;
}
.pvdc-etiquette-sub ul li {
    font-size: 0.93rem;
    line-height: 1.8;
    color: #3a4a5c;
    margin-bottom: 6px;
}
.pvdc-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.pvdc-list {
    margin: 0;
    padding-left: 20px;
}
.pvdc-list li {
    font-size: 0.97rem;
    line-height: 1.85;
    color: #3a4a5c;
    margin-bottom: 8px;
}

/* ── Responsive ── */
@media (max-width: 900px) {
    .pvdc-vms-grid { grid-template-columns: 1fr; }
    .pvdc-principles-grid { grid-template-columns: 1fr; }
    .pvdc-etiquette-subsections { grid-template-columns: 1fr; }
    .pvdc-two-col { grid-template-columns: 1fr; }
    .pvdc-etiquette-sub--full { grid-column: auto; }
}
@media (max-width: 640px) {
    .pvdc-hero-title { font-size: 2rem; }
    .pvdc-chapter-title { font-size: 1.5rem; }
    .pvdc-section { padding: 44px 0; }
    .pvdc-principle-banner { padding: 20px 16px; }
    .pvdc-principle-quote { font-size: 1.1rem; }
}


#wrapper {
    min-height: 100vh;
    position: relative;
}

/* Hero Section */
.culture-hero {
    position: relative;
    height: 400px;
    overflow: hidden;
    background: linear-gradient(135deg, #1B8540 0%, #148036 100%);
}

.culture-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('/pvdo_culture/img/hero-bg.jpg') center/cover no-repeat;
    opacity: 0.2;
}

.culture-hero-content {
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    padding: 0 20px;
}

.culture-hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    margin: 0 0 20px 0;
    text-shadow: 2px 4px 8px rgba(0,0,0,0.3);
    letter-spacing: 2px;
}

.culture-hero-subtitle {
    font-size: 1.2rem;
    line-height: 1.8;
    margin: 0;
    max-width: 700px;
    text-shadow: 1px 2px 4px rgba(0,0,0,0.3);
    font-weight: 300;
}

/* Section Common */
.culture-section {
    padding: 80px 0;
}

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

.culture-section-header {
    text-align: center;
    margin-bottom: 50px;
}

.culture-section-title {
    font-size: 2.4rem;
    font-weight: 700;
    color: #1B8540;
    margin: 0 0 15px 0;
    letter-spacing: 1px;
}

.culture-section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #1483BE, #1B8540);
    margin: 0 auto 20px;
    border-radius: 2px;
}

.culture-section-desc {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #4a5568;
    max-width: 800px;
    margin: 0 auto;
}

/* Core Values Grid */
.culture-values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.culture-value-card {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 35px 25px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e9ecef;
}

.culture-value-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.1);
}

.culture-value-icon {
    font-size: 2.5rem;
    color: #1B8540;
    margin-bottom: 18px;
}

.culture-value-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #2c3e50;
    margin: 0 0 12px 0;
}

.culture-value-card p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: #4a5568;
    margin: 0;
}

/* Gallery Grid */
.culture-gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.culture-gallery-item {
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 4/3;
}

.culture-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.culture-gallery-item:hover img {
    transform: scale(1.05);
}

.culture-gallery-placeholder {
    width: 100%;
    height: 100%;
    background: #e9ecef;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: #adb5bd;
    border-radius: 12px;
}

/* Notebook Section */
.culture-notebook-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.culture-notebook-placeholder {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    font-size: 3rem;
    color: rgba(255,255,255,0.4);
}

/* Responsive */
@media screen and (max-width: 992px) {
    .culture-hero-title {
        font-size: 2.4rem;
    }

    .culture-values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .culture-gallery-grid,
    .culture-notebook-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 768px) {
    .culture-hero {
        height: 300px;
    }

    .culture-hero-title {
        font-size: 1.8rem;
    }

    .culture-hero-subtitle {
        font-size: 1rem;
    }

    .culture-section {
        padding: 50px 0;
    }

    .culture-section-title {
        font-size: 1.8rem;
    }

    .culture-values-grid,
    .culture-gallery-grid,
    .culture-notebook-grid {
        grid-template-columns: 1fr;
    }
}