/* Gas Blocks Page - About Us Design Pattern Applied */

/* Global Page Padding - 20px left and right */
.detail-page {
    padding: 0 20px;
    box-sizing: border-box;
}

/* Enhanced Typography Variables - Same as About Us */
:root {
    --gas-blocks-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --gas-blocks-line-height-tight: 1.2;
    --gas-blocks-line-height-comfortable: 1.5;
    --gas-blocks-line-height-relaxed: 1.6;
    --gas-blocks-letter-spacing-tight: -0.02em;
    --gas-blocks-letter-spacing-normal: 0;
    --gas-blocks-letter-spacing-wide: 0.02em;
}

/* Page Header - Enhanced Typography (About Us Style) */
.page-header {
    background: var(--white);
    color: var(--text-primary);
    padding: var(--spacing-12) 0 var(--spacing-8) 0;
    text-align: left;
    border-bottom: none;
    font-family: var(--gas-blocks-font-family);
}

/* Header Box - Mobile First Design (About Us Style) */
.header-box {
    margin: 0;
    padding: var(--spacing-6);
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    width: 100%;
    box-sizing: border-box;
    position: relative;
}

/* Header Image - Mobile First with Overlay */
.header-image {
    width: 100%;
    margin-top: var(--spacing-4);
    position: relative;
    display: block;
}

.header-image img {
    width: 105%;
    height: auto;
    max-height: 420px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: block;
}

/* Header Overlay - Text over Image */
.header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: var(--spacing-6);
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.4) 0%,
        rgba(0, 0, 0, 0.2) 50%,
        rgba(0, 0, 0, 0.6) 100%
    );
    border-radius: var(--radius-lg);
    color: var(--white);
}

.header-overlay h1 {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-3);
    color: #ffffff !important;
    line-height: var(--gas-blocks-line-height-tight);
    letter-spacing: var(--gas-blocks-letter-spacing-tight);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.header-overlay p {
    font-size: clamp(1rem, 3vw, 1.25rem);
    color: #ffffff !important;
    line-height: var(--gas-blocks-line-height-comfortable);
    font-weight: 400;
    max-width: 600px;
    margin: 0;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    letter-spacing: var(--gas-blocks-letter-spacing-normal);
}

.page-header h1 {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
    color: var(--text-primary);
    line-height: var(--gas-blocks-line-height-tight);
    letter-spacing: var(--gas-blocks-letter-spacing-tight);
}

.page-header p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: var(--gas-blocks-line-height-comfortable);
    font-weight: 400;
    max-width: 600px;
    margin: 0;
}


/* Header Image - Mobile First (About Us Style) */
.header-image {
    width: 100%;
    margin-top: var(--spacing-4);
}

.header-image img {
    width: 100%;
    height: auto;
    max-height: 250px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: block;
}

/* Section Styles - Enhanced Typography and Readability */
.section {
    padding: var(--spacing-8) 0;
    font-family: var(--gas-blocks-font-family);
}

.section.bg-light {
    background-color: var(--bg-secondary);
}

/* Section Background Colors - 3 Color Scheme (Blue, Navy, White) */
#overview {
    background-color: rgba(59, 130, 246, 0.1); /* Blue - Light */
    padding: var(--spacing-8) 0;
}

#status {
    background-color: rgba(30, 58, 138, 0.12); /* Navy - Light */
    padding: var(--spacing-8) 0;
}

#geological {
    background-color: rgba(255, 255, 255, 0.95); /* White - Almost Pure */
    padding: var(--spacing-8) 0;
}

#detailed {
    background-color: rgba(59, 130, 246, 0.1); /* Blue - Light */
    padding: var(--spacing-8) 0;
}

/* Clean Section Title - Simple and Elegant (About Us Style) */
.section-title {
    font-size: clamp(1.375rem, 4vw, 1.75rem);
    font-weight: 700;
    color: var(--primary-color);
    text-align: left;
    margin-bottom: var(--spacing-6);
    padding: var(--spacing-3) var(--spacing-4);
    background: transparent;
    border: none;
    border-radius: 0;
    position: relative;
    line-height: var(--gas-blocks-line-height-comfortable);
    letter-spacing: var(--gas-blocks-letter-spacing-tight);
    box-shadow: none;
    transition: color var(--transition-normal);
}

.section-title:hover {
    color: #1e40af;
    transform: none;
    box-shadow: none;
}

.section-title::after {
    display: none;
}

/* Enhanced Container Layout for Better Readability */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

/* Content Card - Enhanced Card Design with Better Spacing (About Us Style) */
.content-card {
    display: flex;
    flex-direction: column;
    background: var(--white);
    padding: var(--spacing-6) var(--spacing-5);
    border-radius: var(--radius-xl);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    margin-bottom: var(--spacing-6);
    max-width: 100%;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    border: 1px solid rgba(0, 0, 0, 0.05);
    gap: var(--spacing-4);
}

.content-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.card-content {
    flex: 1;
}

.card-content p {
    font-size: clamp(1.125rem, 2.5vw, 1.25rem);
    line-height: var(--gas-blocks-line-height-relaxed);
    color: var(--text-primary);
    margin-bottom: 0;
    font-weight: 400;
    letter-spacing: var(--gas-blocks-letter-spacing-normal);
}

.card-image {
    text-align: center;
    margin-top: var(--spacing-4);
}

.card-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-normal);
}

.card-image img:hover {
    transform: scale(1.01);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* Block Status Section - Minimal Clean Design */
.block-status-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

.block-section {
    margin-bottom: var(--spacing-8);
    padding: 0;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    border: none;
    transition: none;
}

.block-section:hover {
    transform: none;
    box-shadow: none;
}

.block-section h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-4);
    text-align: left;
    line-height: var(--gas-blocks-line-height-tight);
    letter-spacing: var(--gas-blocks-letter-spacing-tight);
    padding-bottom: var(--spacing-2);
    border-bottom: 1px solid rgba(30, 64, 175, 0.1);
}

.block-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    padding: 0;
}

.block-details p {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    line-height: var(--gas-blocks-line-height-comfortable);
    color: var(--text-primary);
    margin: 0;
    font-weight: 400;
    letter-spacing: var(--gas-blocks-letter-spacing-normal);
    padding: 0;
    background: transparent;
    border-radius: 0;
    border: none;
    transition: none;
}

.block-details p:hover {
    background: transparent;
    transform: none;
}

.block-details strong {
    color: var(--primary-color);
    font-weight: 600;
}

.block-image {
    margin-top: var(--spacing-5);
    text-align: center;
}

.block-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-normal);
}

.block-image img:hover {
    transform: scale(1.01);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* Geological Excellence Section - Simple Design */
.geological-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}

.geological-content p {
    font-size: clamp(1.125rem, 2.5vw, 1.25rem);
    line-height: var(--gas-blocks-line-height-relaxed);
    color: var(--text-primary);
    margin-bottom: var(--spacing-6);
    font-weight: 400;
    letter-spacing: var(--gas-blocks-letter-spacing-normal);
    padding: 0 var(--spacing-4);
}

.geological-image {
    margin-top: var(--spacing-6);
    text-align: center;
}

.geological-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-normal);
}

.geological-image img:hover {
    transform: scale(1.01);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.15);
}

/* Image Caption Styling */
.image-caption {
    font-size: clamp(0.75rem, 1.8vw, 0.875rem);
    line-height: var(--gas-blocks-line-height-comfortable);
    color: var(--text-secondary);
    margin-top: var(--spacing-3);
    text-align: center;
    font-style: italic;
    letter-spacing: var(--gas-blocks-letter-spacing-normal);
    padding: 0 var(--spacing-4);
}

/* Geological Subsection Styling */
.geological-subsection {
    margin-top: var(--spacing-8);
    padding: 0 var(--spacing-4);
}

.geological-subsection h3 {
    font-size: clamp(1.125rem, 3vw, 1.375rem);
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-4);
    line-height: var(--gas-blocks-line-height-tight);
    letter-spacing: var(--gas-blocks-letter-spacing-tight);
}

.geological-subsection p {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    line-height: var(--gas-blocks-line-height-relaxed);
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
    font-weight: 400;
    letter-spacing: var(--gas-blocks-letter-spacing-normal);
}

.geological-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.geological-list li {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    line-height: var(--gas-blocks-line-height-relaxed);
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
    padding-left: var(--spacing-6);
    position: relative;
    font-weight: 400;
    letter-spacing: var(--gas-blocks-letter-spacing-normal);
}

.geological-list li::before {
    content: '•';
    color: var(--primary-color);
    font-weight: 600;
    position: absolute;
    left: 0;
    top: 0;
}

/* Detailed Information Section - Simple Design */
.detailed-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}

.detailed-content p {
    font-size: clamp(1.125rem, 2.5vw, 1.25rem);
    line-height: var(--gas-blocks-line-height-relaxed);
    color: var(--text-primary);
    margin-bottom: var(--spacing-6);
    font-weight: 400;
    letter-spacing: var(--gas-blocks-letter-spacing-normal);
    padding: 0 var(--spacing-4);
}

.detailed-image {
    margin-top: var(--spacing-6);
    text-align: center;
}

.detailed-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-normal);
}

.detailed-image img:hover {
    transform: scale(1.01);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.15);
}

/* Detailed List Styling */
.detailed-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-6) 0 0 0;
}

.detailed-list li {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    line-height: var(--gas-blocks-line-height-relaxed);
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
    padding-left: var(--spacing-6);
    position: relative;
    font-weight: 400;
    letter-spacing: var(--gas-blocks-letter-spacing-normal);
}

.detailed-list li::before {
    content: '•';
    color: var(--primary-color);
    font-weight: 600;
    position: absolute;
    left: 0;
    top: 0;
}

/* Vision and Values - Enhanced Design (About Us Style) */
.vision-values {
    max-width: 800px;
    margin: 0 auto;
}

/* Our Vision - Simple Text Box */
.vision-card {
    background: transparent;
    padding: 0;
    border-radius: 0;
    text-align: left;
    margin-bottom: var(--spacing-8);
    border: none;
    box-shadow: none;
    transition: none;
}

.vision-card:hover {
    transform: none;
    box-shadow: none;
}

.vision-card h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-4);
    line-height: var(--gas-blocks-line-height-tight);
    letter-spacing: var(--gas-blocks-letter-spacing-tight);
}

.vision-text {
    font-size: var(--font-size-lg);
    line-height: var(--gas-blocks-line-height-relaxed);
    color: var(--text-primary);
    font-weight: 400;
    margin-bottom: var(--spacing-6);
    letter-spacing: var(--gas-blocks-letter-spacing-normal);
    padding: 0 var(--spacing-4);
}

.values-section {
    margin-top: var(--spacing-8);
}

.values-section h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
    line-height: var(--gas-blocks-line-height-tight);
    letter-spacing: var(--gas-blocks-letter-spacing-tight);
}

.values-intro {
    text-align: left;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: var(--spacing-6);
    font-weight: 400;
    line-height: var(--gas-blocks-line-height-comfortable);
    letter-spacing: var(--gas-blocks-letter-spacing-normal);
    padding: 0 var(--spacing-4);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-6);
    padding: 0 20px;
}

.value-card {
    background: var(--white);
    padding: var(--spacing-6);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(0, 0, 0, 0.05);
    text-align: left;
    margin-bottom: 0;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.value-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.value-card h4 {
    color: var(--primary-color);
    font-size: clamp(1.125rem, 2.5vw, 1.25rem);
    margin-bottom: var(--spacing-3);
    font-weight: 600;
    letter-spacing: var(--gas-blocks-letter-spacing-tight);
}

.value-card p {
    color: var(--text-primary);
    font-size: clamp(0.9375rem, 2vw, 1rem);
    line-height: var(--gas-blocks-line-height-comfortable);
    margin: 0;
    font-weight: 400;
    letter-spacing: var(--gas-blocks-letter-spacing-normal);
}

/* Enhanced Message from Chairman - Letter Style (About Us Style) */
.message-content {
    background: var(--white);
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    max-width: 800px;
    margin: 0 auto;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.message-header h3 {
    font-size: clamp(1.5rem, 3vw, 1.75rem);
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-6);
    text-align: left;
    letter-spacing: var(--gas-blocks-letter-spacing-tight);
}

.message-text {
    margin-bottom: var(--spacing-6);
}

/* Letter-like underline for message paragraphs */
.letter-line {
    position: relative;
    padding-bottom: var(--spacing-3);
    margin-bottom: var(--spacing-4);
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    line-height: var(--gas-blocks-line-height-relaxed);
    color: var(--text-primary);
    letter-spacing: var(--gas-blocks-letter-spacing-normal);
}

.letter-line::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(
        to right,
        transparent 0%,
        rgba(30, 64, 175, 0.2) 10%,
        rgba(30, 64, 175, 0.2) 90%,
        transparent 100%
    );
}

.message-signature {
    text-align: right;
    padding-top: var(--spacing-4);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.message-signature p {
    margin: 0;
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    color: var(--text-primary);
    line-height: 1.4;
}

.message-signature p strong {
    font-weight: 600;
    color: var(--primary-color);
}

/* Mobile Responsive - About Us Style */
@media (max-width: 768px) {
    .header-box {
        padding: var(--spacing-4);
    }
    
    .header-image img {
        width: 105%;
        max-height: 315px;
        border-radius: var(--radius-md);
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }
    
    /* Mobile Header Overlay */
    .header-overlay {
        padding: var(--spacing-4);
        background: linear-gradient(
            135deg,
            rgba(0, 0, 0, 0.5) 0%,
            rgba(0, 0, 0, 0.3) 50%,
            rgba(0, 0, 0, 0.7) 100%
        );
    }
    
    .header-overlay h1 {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
        margin-bottom: var(--spacing-2);
    }
    
    .header-overlay p {
        font-size: clamp(0.875rem, 4vw, 1rem);
    }
    
    .content-card {
        padding: var(--spacing-4);
    }
    
    .block-status-content {
        padding: 0 var(--spacing-3);
    }
    
    .block-section {
        margin-bottom: var(--spacing-6);
    }
    
    .block-details {
        gap: var(--spacing-3);
    }
    
    .block-image {
        margin-top: var(--spacing-4);
    }
    
    .block-image img {
        max-height: 250px;
        object-fit: cover;
    }
    
    .geological-content {
        padding: 0 var(--spacing-4);
    }
    
    .geological-content p {
        padding: 0 var(--spacing-3);
    }
    
    .geological-image {
        margin-top: var(--spacing-4);
    }
    
    .geological-image img {
        max-height: 250px;
        object-fit: cover;
    }
    
    .image-caption {
        font-size: clamp(0.625rem, 2.2vw, 0.75rem);
        padding: 0 var(--spacing-3);
        margin-top: var(--spacing-2);
    }
    
    .geological-subsection {
        margin-top: var(--spacing-6);
        padding: 0 var(--spacing-3);
    }
    
    .geological-subsection h3 {
        font-size: clamp(1rem, 3.5vw, 1.25rem);
        margin-bottom: var(--spacing-3);
    }
    
    .geological-subsection p {
        font-size: clamp(0.9375rem, 2.5vw, 1rem);
        padding: 0;
    }
    
    .geological-list li {
        font-size: clamp(0.9375rem, 2.5vw, 1rem);
        padding-left: var(--spacing-5);
        margin-bottom: var(--spacing-3);
    }
    
    .detailed-list {
        margin-top: var(--spacing-4);
    }
    
    .detailed-list li {
        font-size: clamp(0.9375rem, 2.5vw, 1rem);
        padding-left: var(--spacing-5);
        margin-bottom: var(--spacing-3);
    }
    
    .detailed-content {
        padding: 0 var(--spacing-4);
    }
    
    .detailed-content p {
        padding: 0 var(--spacing-3);
    }
    
    .detailed-image {
        margin-top: var(--spacing-4);
    }
    
    .detailed-image img {
        max-height: 250px;
        object-fit: cover;
    }
    
    .values-grid {
        display: block;
        gap: var(--spacing-4);
        padding: 0 20px;
    }
    
    .value-card {
        padding: var(--spacing-4);
        margin-bottom: var(--spacing-4);
    }
    
    .message-content {
        padding: var(--spacing-5);
    }
    
    .vision-text,
    .values-intro {
        padding: 0 var(--spacing-3);
    }
    
    /* Mobile Section Titles with Enhanced Padding (About Us Style) */
    .section-title {
        font-size: clamp(1.25rem, 4.5vw, 1.5rem);
        padding: var(--spacing-3) var(--spacing-4);
        margin-bottom: var(--spacing-4);
    }
}

/* Desktop Responsive - About Us Style */
@media (min-width: 1024px) {
    .header-image img {
        width: 105%;
        max-height: 525px;
    }
    
    .header-overlay {
        padding: var(--spacing-8);
        background: linear-gradient(
            135deg,
            rgba(0, 0, 0, 0.3) 0%,
            rgba(0, 0, 0, 0.1) 50%,
            rgba(0, 0, 0, 0.5) 100%
        );
    }
    
    .header-overlay h1 {
        font-size: clamp(2.5rem, 5vw, 4rem);
        margin-bottom: var(--spacing-4);
    }
    
    .header-overlay p {
        font-size: clamp(1.125rem, 2.5vw, 1.5rem);
        max-width: 700px;
    }
    
    .block-status-content {
        padding: 0 var(--spacing-6);
    }
    
    .block-section {
        margin-bottom: var(--spacing-10);
    }
    
    .block-details {
        gap: var(--spacing-5);
    }
    
    .geological-content {
        padding: 0 var(--spacing-6);
    }
    
    .geological-content p {
        padding: 0 var(--spacing-6);
    }
    
    .geological-image {
        margin-top: var(--spacing-8);
    }
    
    .detailed-content {
        padding: 0 var(--spacing-6);
    }
    
    .detailed-content p {
        padding: 0 var(--spacing-6);
    }
    
    .detailed-image {
        margin-top: var(--spacing-8);
    }
    
    .values-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: var(--spacing-8);
    }
    
    .value-card {
        padding: var(--spacing-6);
    }
    
    .vision-text,
    .values-intro {
        padding: 0 var(--spacing-6);
    }
    
    .message-content {
        padding: var(--spacing-10);
    }
    
    /* Desktop Section Titles (About Us Style) */
    .section-title {
        font-size: clamp(1.125rem, 4vw, 1.25rem);
        margin-bottom: var(--spacing-6);
        padding: var(--spacing-3) var(--spacing-4);
    }
}