/* ============================================
   EHON Energy Tech - Services Page Styles
   ============================================ */

/* ============================================
   Page Hero Section
   ============================================ */
.page-hero {
    position: relative;
    min-height: 80vh;
    padding: 160px 0 100px;
    display: flex;
    align-items: center;
}

.page-hero .container {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 60px;
    align-items: center;
}

.page-hero-content {
    position: relative;
    z-index: 2;
}

.page-hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.page-hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.7;
}

.page-hero-visual {
    position: relative;
    flex: 1.2;
    min-width: 0;
}

.services-image-wrapper {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.03);
    padding: 16px;
}

.services-hero-img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-slow);
    border-radius: 16px;
    /* Brighten and enhance contrast for readability */
    filter: brightness(1.15) contrast(1.05);
}

.services-image-wrapper:hover .services-hero-img {
    transform: scale(1.02);
    filter: brightness(1.2) contrast(1.1);
}

/* Active nav link */
.nav-link.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
}

/* ============================================
   Services Overview Section
   ============================================ */
.services-overview {
    padding: var(--section-padding) 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

/* ============================================
   Services Tabs
   ============================================ */
.services-tabs {
    max-width: 1100px;
    margin: 0 auto;
}

.tabs-navigation {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 48px;
    padding: 12px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 24px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 12px;
    color: var(--text-secondary);
    font-family: var(--font-primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    color: var(--text-primary);
    background: var(--gradient-accent);
    border-color: transparent;
    box-shadow: 0 4px 20px rgba(237, 28, 36, 0.3);
}

.tab-icon {
    font-size: 20px;
}

/* Tab Panels */
.tabs-content {
    display: block;
    position: relative;
    min-height: 400px;
    margin-top: 48px;
}

.tab-panel {
    display: none;
    width: 100%;
}

.tab-panel.active {
    display: block !important;
    width: 100%;
}

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

.tab-panel-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 48px;
    position: relative;
    overflow: hidden;
}

.tab-panel-grid::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.tab-panel-content h3 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 16px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tab-lead {
    font-size: 18px;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 16px;
}

.tab-panel-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.service-list {
    list-style: none;
    margin: 24px 0;
    padding: 0;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 0;
    color: var(--text-primary);
    font-size: 15px;
    border-bottom: 1px solid var(--border-color);
}

.service-list li:last-child {
    border-bottom: none;
}

.service-list li::before {
    content: '';
    width: 8px;
    height: 8px;
    flex-shrink: 0;
    background: var(--accent-primary);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(237, 28, 36, 0.5);
}

.service-highlight {
    margin-top: 24px;
    padding: 20px 24px;
    background: linear-gradient(135deg, rgba(237, 28, 36, 0.1) 0%, rgba(42, 54, 144, 0.1) 100%);
    border: 1px solid rgba(237, 28, 36, 0.2);
    border-radius: 14px;
}

.service-highlight p {
    margin: 0;
    font-size: 15px;
}

.tab-panel-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.tab-img {
    max-width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-slow);
}

.tab-img:hover {
    transform: scale(1.03);
}

/* ============================================
   Web Solutions Section
   ============================================ */
.web-solutions {
    padding: var(--section-padding) 0;
    background: var(--bg-primary);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.solution-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 48px;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: var(--transition-base);
}

.solution-card:hover {
    border-color: rgba(237, 28, 36, 0.3);
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.solution-card:hover::before {
    opacity: 1;
}

.solution-icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(237, 28, 36, 0.15) 0%, rgba(42, 54, 144, 0.15) 100%);
    border-radius: 18px;
    margin-bottom: 28px;
}

.solution-icon svg {
    width: 36px;
    height: 36px;
    stroke: var(--accent-primary);
}

.solution-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.solution-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.solution-card .btn {
    margin-top: 16px;
}

/* ============================================
   Core Values Section
   ============================================ */
.core-values {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.value-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: var(--transition-base);
}

.value-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(237, 28, 36, 0.3);
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

.value-card:hover::before {
    opacity: 1;
}

.value-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(237, 28, 36, 0.15) 0%, rgba(42, 54, 144, 0.15) 100%);
    border-radius: 18px;
}

.value-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--accent-primary);
}

.value-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--text-primary);
}

.value-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   Form Select Styling
   ============================================ */
.form-group select {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 14px 16px;
    font-family: var(--font-primary);
    font-size: 15px;
    color: var(--text-primary);
    transition: var(--transition-base);
    cursor: pointer;
    width: 100%;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.5)' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px;
}

.form-group select:focus {
    outline: none;
    border-color: var(--accent-primary);
    background-color: rgba(237, 28, 36, 0.05);
}

.form-group select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 12px;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1200px) {
    .page-hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
    }
    
    .page-hero-content {
        order: 1;
    }
    
    .page-hero-visual {
        order: 2;
        max-width: 700px;
        margin: 0 auto;
    }
    
    .page-hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .tab-panel-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .tab-panel-visual {
        order: -1;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .page-hero {
        min-height: auto;
        padding: 140px 0 80px;
    }
    
    .tabs-navigation {
        flex-direction: column;
        gap: 8px;
    }
    
    .tab-btn {
        width: 100%;
        justify-content: center;
    }
    
    .tab-panel-grid {
        padding: 32px 24px;
    }
    
    .tab-panel-content h3 {
        font-size: 24px;
    }
    
    .solution-card {
        padding: 36px 28px;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .page-hero {
        padding: 120px 0 60px;
    }
    
    .page-hero-title {
        font-size: 2rem;
    }
    
    .tab-panel-grid {
        padding: 24px 20px;
    }
    
    .solution-card {
        padding: 28px 20px;
    }
    
    .value-card {
        padding: 28px 20px;
    }
}