/* 
 * landing-base.css - VERIFIED CLEAN
 * Common styles for all ExO Velik brand landing pages
 * NO hardcoded colors - ALL use CSS variables from brand files
 */

/* Typography */
body {
    font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--dark-text);
    margin: 0;
    padding: 0;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'DM Sans', sans-serif;
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

/* Navigation */
.navbar {
    background: var(--white);
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.navbar-brand {
    font-family: 'DM Sans', sans-serif;
    font-weight: 900;
    font-size: 1.5rem;
    color: var(--primary-color);
    letter-spacing: -0.02em;
    text-decoration: none;
}

.nav-link {
    color: var(--mid-gray);
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: color 0.2s;
    text-decoration: none;
}

    .nav-link:hover {
        color: var(--accent-color);
    }

.btn-contact {
    background: var(--primary-color);
    color: var(--white);
    padding: 0.75rem 2rem;
    border-radius: 6px;
    font-weight: 600;
    border: none;
    transition: transform 0.2s, box-shadow 0.2s;
    text-decoration: none;
    display: inline-block;
}

    .btn-contact:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 25px var(--shadow-color);
        color: var(--white);
    }

/* Nav dropdown and mega (dynamic navigation) */
.navbar .nav-item-dropdown,
.navbar .nav-item-mega {
    position: relative;
}

.navbar .nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    padding: 0.5rem 0;
    margin: 0;
    list-style: none;
    background: var(--white);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    border-radius: 12px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
    z-index: 1050;
}

.navbar .nav-item-dropdown:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.navbar .nav-dropdown li { margin: 0; }

.navbar .nav-dropdown a {
    display: block;
    padding: 0.5rem 1.25rem;
    color: var(--mid-gray) !important;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.2s ease, color 0.2s ease;
}

.navbar .nav-dropdown a:hover {
    background: var(--light-gray);
    color: var(--primary-color) !important;
}

.navbar .nav-mega {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    min-width: 560px;
    max-width: 720px;
    padding: 1.25rem 0;
    margin: 0;
    background: var(--white);
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
    border-radius: 16px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
    z-index: 1050;
}

.navbar .nav-item-mega:hover .nav-mega {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.navbar .nav-mega-inner { padding: 0 1rem; }

.navbar .nav-mega-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1.5rem 2rem;
}

.navbar .nav-mega-col {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.navbar .nav-mega-heading {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.navbar .nav-mega-items {
    list-style: none;
    padding: 0;
    margin: 0;
}

.navbar .nav-mega-items li { margin: 0; }

.navbar .nav-mega-items a {
    display: block;
    padding: 0.35rem 0;
    color: var(--mid-gray) !important;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.navbar .nav-mega-items a:hover {
    color: var(--primary-color) !important;
}

@media (max-width: 991.98px) {
    .navbar .nav-dropdown,
    .navbar .nav-mega {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: rgba(0,0,0,0.03);
        border-radius: 8px;
        margin-top: 0.5rem;
        margin-left: 0.75rem;
        margin-bottom: 0.5rem;
        max-height: 0;
        overflow: hidden;
        padding: 0;
        min-width: unset;
        transition: max-height 0.3s ease;
    }

    .navbar .nav-item-dropdown.show .nav-dropdown,
    .navbar .nav-item-mega.show .nav-mega {
        max-height: 80vh;
        padding: 0.5rem 0;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .navbar .nav-mega-columns {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .navbar .nav-dropdown a,
    .navbar .nav-mega-items a {
        padding: 0.4rem 1rem;
    }

    .navbar .nav-item-dropdown .nav-link[data-nav-trigger],
    .navbar .nav-item-mega .nav-link[data-nav-trigger] {
        cursor: pointer;
    }

    .navbar .nav-item-dropdown .nav-link[data-nav-trigger]::after,
    .navbar .nav-item-mega .nav-link[data-nav-trigger]::after {
        content: '';
        display: inline-block;
        margin-left: 0.35em;
        vertical-align: 0.2em;
        border: 2px solid currentColor;
        border-right: 0;
        border-top: 0;
        width: 0.4em;
        height: 0.4em;
        transform: rotate(-45deg);
        transition: transform 0.2s ease;
    }

    .navbar .nav-item-dropdown.show .nav-link[data-nav-trigger]::after,
    .navbar .nav-item-mega.show .nav-link[data-nav-trigger]::after {
        transform: rotate(135deg);
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%), var(--hero-image) center/cover;
    color: var(--white);
    padding: 8rem 0 6rem;
    position: relative;
    overflow: hidden;
}

    .hero::before {
        content: '';
        position: absolute;
        top: 0;
        right: 0;
        width: 60%;
        height: 100%;
        background: radial-gradient(circle at top right, var(--hero-glow) 0%, transparent 70%);
        pointer-events: none;
    }

    .hero h1 {
        font-size: 4rem;
        margin-bottom: 1.5rem;
        font-weight: 900;
    }

    .hero .lead {
        font-size: 1.5rem;
        margin-bottom: 2.5rem;
        opacity: 0.95;
        line-height: 1.6;
    }

.hero-meta {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
}

.hero-meta-item {
    text-align: left;
}

    .hero-meta-item strong {
        display: block;
        font-size: 2rem;
        font-weight: 700;
        color: var(--accent-color);
    }

    .hero-meta-item span {
        display: block;
        font-size: 0.95rem;
        opacity: 0.8;
    }

/* Feature Cards Section */
.features-section {
    padding: 6rem 0;
    background: var(--light-gray);
    position: relative;
}

    .features-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-image: radial-gradient(circle, var(--dot-pattern) 1px, transparent 1px);
        background-size: 40px 40px;
        pointer-events: none;
    }

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

    .section-header h2 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
        color: var(--primary-color);
    }

    .section-header p {
        font-size: 1.25rem;
        color: var(--mid-gray);
        max-width: 700px;
        margin: 0 auto;
    }

.feature-card {
    background: var(--white);
    padding: 3rem;
    border-radius: 12px;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    height: 100%;
}

    .feature-card::before {
        content: '';
        position: absolute;
        top: 0;
        right: 0;
        width: 60px;
        height: 60px;
        background: linear-gradient(135deg, var(--card-gradient-start), var(--card-gradient-end));
        border-radius: 0 0 0 100%;
        transition: all 0.3s;
    }

    .feature-card:hover::before {
        width: 120px;
        height: 120px;
        background: linear-gradient(135deg, var(--card-gradient-hover-start), var(--card-gradient-hover-end));
    }

    .feature-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 20px 40px rgba(0,0,0,0.08);
        border-color: var(--accent-color);
    }

    .feature-card h3 {
        font-size: 1.75rem;
        margin-bottom: 1rem;
        color: var(--primary-color);
    }

    .feature-card p {
        color: var(--mid-gray);
        margin-bottom: 0;
    }

/* Alias: challenge-section/card (same as features) */
.challenge-section { padding: 6rem 0; background: var(--light-gray); position: relative; }
.challenge-section::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background-image: radial-gradient(circle, var(--dot-pattern) 1px, transparent 1px); background-size: 40px 40px; pointer-events: none; }
.challenge-card { background: var(--white); padding: 3rem; border-radius: 12px; border: 1px solid rgba(0,0,0,0.06); transition: all 0.3s; position: relative; overflow: hidden; height: 100%; }
.challenge-card::before { content: ''; position: absolute; top: 0; right: 0; width: 60px; height: 60px; background: linear-gradient(135deg, var(--card-gradient-start), var(--card-gradient-end)); border-radius: 0 0 0 100%; transition: all 0.3s; }
.challenge-card:hover::before { width: 120px; height: 120px; background: linear-gradient(135deg, var(--card-gradient-hover-start), var(--card-gradient-hover-end)); }
.challenge-card:hover { transform: translateY(-8px); box-shadow: 0 20px 40px rgba(0,0,0,0.08); border-color: var(--accent-color); }
.challenge-card h3 { font-size: 1.75rem; margin-bottom: 1rem; color: var(--primary-color); }
.challenge-card p { color: var(--mid-gray); margin-bottom: 0; }
.challenge-card .solution-link, .service-item .solution-link { color: var(--accent-color) !important; font-weight: 600; text-decoration: none; }
.service-item a.mt-2 { color: var(--accent-color) !important; font-weight: 600; text-decoration: none; }

/* Cases/About sections */
.cases-section { padding: 6rem 0; background: var(--light-gray); }
.case-card { background: var(--white); border-radius: 12px; overflow: hidden; transition: transform 0.3s; height: 100%; }
.case-card:hover { transform: translateY(-4px); }
.case-image { width: 100%; height: 250px; background-size: cover; background-position: center; display: flex; align-items: center; justify-content: center; color: var(--white); font-size: 1.25rem; font-weight: 600; position: relative; }
.case-image::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end)); }
.case-image span { position: relative; z-index: 1; }
.case-content { padding: 2rem; }
.case-tag { color: var(--accent-color); font-size: 0.875rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.75rem; display: block; }
.case-content h4 { font-size: 1.5rem; margin-bottom: 1rem; color: var(--primary-color); }
.about-section { padding: 6rem 0; background: var(--light-gray); }
.trust-list { list-style: none; padding: 0; }
.trust-list li { padding: 0.5rem 0; padding-left: 1.5rem; position: relative; }
.trust-list li::before { content: '✓'; position: absolute; left: 0; color: var(--accent-color); font-weight: 700; }

/* Services Section */
.services-section {
    padding: 6rem 0;
    background: var(--white);
}

.service-item {
    padding: 2.5rem;
    border-left: 3px solid transparent;
    transition: all 0.3s;
}

    .service-item:hover {
        border-left-color: var(--accent-color);
        background: var(--service-hover-bg);
    }

    .service-item h4 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
        color: var(--primary-color);
    }

    .service-item p {
        color: var(--mid-gray);
        margin-bottom: 0;
    }

/* Trust Section */
.trust-section {
    padding: 6rem 0;
    background: var(--primary-color);
    color: var(--white);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 4rem;
    text-align: center;
    margin-top: 3rem;
}

.trust-item strong {
    display: block;
    font-size: 3rem;
    font-weight: 900;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.trust-item p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
}

/* CTA Section */
.cta-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white);
    text-align: center;
}

    .cta-section h2 {
        font-size: 3rem;
        margin-bottom: 1.5rem;
    }

    .cta-section p {
        font-size: 1.25rem;
        margin-bottom: 2.5rem;
        opacity: 0.9;
    }

.btn-cta-primary {
    background: var(--accent-color);
    color: var(--white);
    padding: 1rem 3rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1.125rem;
    border: none;
    margin: 0 0.5rem;
    transition: all 0.2s;
    display: inline-block;
    text-decoration: none;
}

    .btn-cta-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 25px var(--shadow-color);
        color: var(--white);
    }

.btn-cta-secondary {
    background: transparent;
    color: var(--white);
    padding: 1rem 3rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1.125rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    margin: 0 0.5rem;
    transition: all 0.2s;
    display: inline-block;
    text-decoration: none;
}

    .btn-cta-secondary:hover {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(255, 255, 255, 0.5);
        color: var(--white);
    }

/* Pricing Section (optional custom section) */
.pricing-section {
    padding: 6rem 0;
    background: var(--white);
}

.pricing-card {
    background: var(--white);
    padding: 3rem;
    border-radius: 12px;
    border: 2px solid var(--accent-color);
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

    .pricing-card .price {
        font-size: 4rem;
        font-weight: 900;
        color: var(--primary-color);
        margin: 1rem 0;
    }

    .pricing-card .period {
        font-size: 1.25rem;
        color: var(--mid-gray);
        margin-bottom: 2rem;
    }

    .pricing-card ul {
        list-style: none;
        padding: 0;
        margin: 2rem 0;
        text-align: left;
    }

    .pricing-card li {
        padding: 0.75rem 0;
        padding-left: 2rem;
        position: relative;
        color: var(--dark-text);
    }

        .pricing-card li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary-color);
            font-weight: 700;
        }

/* Footer */
footer {
    background: var(--dark-text);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-brand {
    font-family: 'DM Sans', sans-serif;
    font-weight: 900;
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-links h5 {
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

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

.footer-links li {
    margin: 0;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    display: block;
    padding: 0.5rem 0;
    transition: color 0.2s;
}

    .footer-links a:hover {
        color: var(--accent-color);
    }

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 3rem;
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

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

    .hero-meta {
        flex-direction: column;
        gap: 1.5rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .cta-section h2 {
        font-size: 2rem;
    }

    .btn-cta-primary,
    .btn-cta-secondary {
        display: block;
        margin: 0.5rem 0;
        width: 100%;
    }

    .trust-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}