/* ===================================
   OIL WORLD POWER - SITE CSS
   Tailwind-inspired custom styles
   =================================== */

/* CSS Variables */
:root {
    --primary: #004DCC;
    --primary-light: #e6f0ff;
    --primary-dark: #003399;
    --accent: #FF9900;
    --accent-light: #fff5e6;
    --industrial-dark: #1a1f2e;
    --industrial-blue: #004DCC;
    --industrial-gray: #6b7280;
    --industrial-gray-light: #f3f4f6;
    --text-dark: #1a1f2e;
    --text-muted: #6b7280;
    --white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
}

/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
    padding-top: 80px;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* ===================================
   NAVBAR
   =================================== */
.navbar {
    background: linear-gradient(135deg, var(--industrial-dark) 0%, var(--primary) 50%, var(--industrial-blue) 100%);
    padding: 0.75rem 0;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
}

.navbar-logo {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    object-fit: cover;
}

.navbar-logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent) 0%, #cc7a00 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.navbar-logo-icon i {
    font-size: 1.75rem;
    color: var(--white);
}

.navbar-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.navbar-brand-text .brand-name {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--white) !important;
}

.brand-subtitle {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.8);
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: 6px;
    margin: 0 0.1rem;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--white) !important;
    background-color: rgba(255, 255, 255, 0.15);
}

.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: 8px;
}

.dropdown-item.active {
    background-color: var(--primary);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero-section {
    background: linear-gradient(135deg, var(--industrial-dark) 0%, var(--primary) 50%, var(--industrial-blue) 100%);
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    padding: 4rem 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.hero-content {
    position: relative;
    z-index: 1;
    color: var(--white);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    opacity: 0.95;
}

.hero-tagline {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    opacity: 0.9;
    background: rgba(255, 153, 0, 0.2);
    display: inline-block;
    padding: 0.5rem 1.5rem;
    border-radius: 30px;
    border: 1px solid rgba(255, 153, 0, 0.3);
}

.hero-description {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===================================
   BUTTONS
   =================================== */
.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

.btn-outline-light:hover {
    color: var(--primary);
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-weight: 600;
    border-radius: 8px;
}

/* ===================================
   FEATURES SECTION
   =================================== */
.features-section {
    background-color: var(--industrial-gray-light);
    padding: 5rem 0;
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.feature-icon i {
    font-size: 1.75rem;
    color: var(--primary);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.feature-description {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ===================================
   BRANDS SECTION
   =================================== */
.brands-section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

.brand-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
    border: 1px solid var(--border-color);
}

.brand-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.brand-logo-wrapper {
    background: var(--industrial-dark);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.brand-logo {
    max-width: 150px;
    max-height: 80px;
    object-fit: contain;
    display: block;
    margin: 0 auto;
}

.brand-placeholder {
    width: 80px;
    height: 80px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.brand-placeholder i {
    font-size: 2rem;
    color: var(--primary);
}

.brand-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.brand-description {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

/* ===================================
   CTA SECTION
   =================================== */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--industrial-blue) 100%);
    padding: 5rem 0;
    color: var(--white);
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-section-alt {
    background-color: var(--industrial-gray-light);
    padding: 5rem 0;
}

.cta-section-alt .cta-title {
    color: var(--text-dark);
}

.cta-section-alt .cta-description {
    color: var(--text-muted);
}

/* ===================================
   PAGE HEADER
   =================================== */
.page-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--industrial-blue) 100%);
    padding: 4rem 0;
    color: var(--white);
    text-align: center;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.page-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* ===================================
   CONTENT SECTIONS
   =================================== */
.content-section {
    padding: 5rem 0;
}

.content-section.bg-light {
    background-color: var(--industrial-gray-light);
}

.content-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.card-content p {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.mission-list {
    list-style: none;
    padding: 0;
}

.mission-list li {
    padding: 0.5rem 0;
    display: flex;
    align-items: flex-start;
}

/* ===================================
   VALUES SECTION
   =================================== */
.value-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 2px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
}

.value-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.value-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.value-icon i {
    font-size: 2rem;
    color: var(--primary);
}

.value-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.value-description {
    color: var(--text-muted);
}

/* ===================================
   PRODUCTS SECTION
   =================================== */
.quality-note {
    padding: 2rem 0;
}

.alert-accent {
    background-color: var(--accent-light);
    border: 1px solid var(--accent);
    color: #b45309;
    border-radius: 8px;
    padding: 1rem 1.5rem;
    font-weight: 500;
}

.product-row {
    padding: 4rem 0;
}

.product-dark {
    background-color: var(--industrial-dark);
    color: var(--white);
}

.product-light {
    background-color: var(--white);
}

.product-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--industrial-blue) 100%);
    color: var(--white);
}

.product-image {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.product-logo-wrapper {
    background: var(--industrial-dark);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
}

.product-logo {
    max-width: 200px;
    max-height: 100px;
    object-fit: contain;
}

.product-placeholder {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    border: 2px dashed rgba(255, 255, 255, 0.3);
}

.product-placeholder i {
    font-size: 5rem;
    color: var(--accent);
    opacity: 0.8;
}

.product-light .product-placeholder {
    background: var(--primary-light);
    border-color: var(--primary);
}

.product-light .product-placeholder i {
    color: var(--primary);
}

.product-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.product-description {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.product-features {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.product-features li {
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
}

.product-features li i {
    color: var(--accent);
    margin-right: 0.5rem;
}

.text-white .product-features li i {
    color: var(--accent);
}

/* ===================================
   CERTIFICATES SECTION
   =================================== */
.certificate-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 2px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
}

.certificate-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.certificate-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.certificate-icon i {
    font-size: 1.75rem;
    color: var(--primary);
}

.certificate-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.certificate-description {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

.standards-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.standards-list {
    list-style: none;
    padding: 0;
    margin: 0;
    columns: 2;
}

.standards-list li {
    padding: 0.75rem 0;
    break-inside: avoid;
}

.document-card {
    background: var(--white);
    padding: 1rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
}

.document-image {
    width: 100%;
    border-radius: 8px;
}

.document-title {
    margin-top: 1rem;
    font-size: 1rem;
    color: var(--text-muted);
}

.commitment-section {
    padding: 4rem 0;
}

.commitment-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--industrial-blue) 100%);
    padding: 3rem;
    border-radius: 12px;
    text-align: center;
    color: var(--white);
}

.commitment-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.commitment-content {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
}

.catalog-info {
    padding: 2rem;
}

/* ===================================
   CONTACT SECTION
   =================================== */
.contact-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 2px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
    text-align: center;
}

.contact-card:hover {
    border-color: var(--primary);
}

.contact-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.contact-icon i {
    font-size: 1.75rem;
    color: var(--primary);
}

.contact-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.contact-info {
    margin-bottom: 0.75rem;
}

.contact-info a {
    color: var(--primary);
}

.contact-info a:hover {
    text-decoration: underline;
}

.company-info-section {
    padding: 4rem 0;
    background-color: var(--industrial-gray-light);
}

.company-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--industrial-blue) 100%);
    padding: 3rem;
    border-radius: 12px;
    color: var(--white);
}

.company-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
}

.info-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.5rem;
}

.info-item i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

/* ===================================
   FOOTER
   =================================== */
.site-footer {
    background-color: var(--industrial-dark);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.footer-subtitle {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 0.5rem;
}

.footer-text {
    opacity: 0.7;
    font-size: 0.9rem;
}

.footer-heading {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.footer-contact {
    list-style: none;
    padding: 0;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact li i {
    margin-right: 0.75rem;
    margin-top: 0.25rem;
    color: var(--primary);
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact a:hover {
    color: var(--primary);
}

.footer-bottom {
    margin-top: 3rem;
}

.footer-bottom hr {
    border-color: rgba(255, 255, 255, 0.1);
}

.copyright {
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin: 1rem 0 0;
}

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 991px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .standards-list {
        columns: 1;
    }
}

@media (max-width: 767px) {
    body {
        padding-top: 70px;
    }

    .hero-section {
        min-height: 500px;
    }

    .hero-title {
        font-size: 2rem;
    }

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

    .hero-tagline {
        font-size: 0.9rem;
        padding: 0.4rem 1rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .page-title {
        font-size: 1.75rem;
    }

    .cta-title {
        font-size: 1.75rem;
    }

    .product-title {
        font-size: 1.5rem;
    }

    .navbar-brand-text {
        display: none;
    }
}

/* ===================================
   UTILITIES
   =================================== */
.text-primary {
    color: var(--primary) !important;
}

.bg-primary {
    background-color: var(--primary) !important;
}

.text-accent {
    color: var(--accent) !important;
}

.shadow-lg {
    box-shadow: var(--shadow-lg) !important;
}