/* ===========================
   UFlight™ — Components
   =========================== */

/* ── HEADER / NAV ───────────────────────────────────── */
#site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--c-border);
    transition: box-shadow var(--transition);
}

#site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    gap: 24px;
}

/* Logo */
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.nav-logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--c-dark), var(--c-blue));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.nav-logo-text {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--c-dark);
    letter-spacing: -0.5px;
}

.nav-logo-text span {
    color: var(--c-orange);
}

/* Nav links */
.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-links a {
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--c-text);
    transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    background: var(--c-bg);
    color: var(--c-blue);
}

/* CTA */
.nav-cta {
    background: var(--c-orange);
    color: var(--c-white) !important;
    border-radius: 50px !important;
    padding: 9px 22px !important;
    font-weight: 600 !important;
    box-shadow: 0 4px 14px rgba(255, 122, 26, 0.3);
}

.nav-cta:hover,
.nav-cta:focus,
.nav-cta:active {
    background: var(--c-orange) !important;
    color: var(--c-white) !important;
    transform: none;
    box-shadow: 0 4px 14px rgba(255, 122, 26, 0.3) !important;
}

/* Hamburger */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--c-dark);
    border-radius: 2px;
    transition: all var(--transition);
}

.nav-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
@media (max-width: 960px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--c-white);
        flex-direction: column;
        align-items: flex-start;
        padding: 20px 24px 28px;
        box-shadow: var(--shadow-lg);
        transform: translateY(-120%);
        transition: transform var(--transition);
        gap: 4px;
    }

    .nav-links.open {
        transform: translateY(0);
    }

    .nav-links a {
        width: 100%;
        padding: 12px 16px;
    }

    .nav-cta {
        margin-top: 8px;
    }
}

/* ── FOOTER ─────────────────────────────────────────── */
#site-footer {
    background: var(--c-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 64px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand .nav-logo-text {
    color: var(--c-white);
}

.footer-brand p {
    margin-top: 14px;
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer-col h4 {
    color: var(--c-orange);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 18px;
}

.footer-col a {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-bottom: 10px;
    transition: color var(--transition);
}

.footer-col a:hover {
    color: var(--c-white);
}

/* Social icons */
.social-links {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    transition: all var(--transition);
    cursor: pointer;
}

.social-btn:hover {
    background: var(--c-orange);
    color: white;
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.4);
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* ── HERO (Home) ────────────────────────────────────── */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: var(--c-dark);
    padding-top: 70px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('https://images.unsplash.com/photo-1540808890969-ab0cf4b9f89a?w=1600&q=80');
    background-size: cover;
    background-position: center;
    opacity: 0.18;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(14, 42, 71, 0.97) 0%, rgba(22, 58, 96, 0.85) 50%, rgba(14, 42, 71, 0.75) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 760px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(47, 111, 237, 0.2);
    border: 1px solid rgba(47, 111, 237, 0.4);
    color: var(--c-blue-lt);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: 0.05em;
}

.hero h1 {
    color: var(--c-white);
    margin-bottom: 20px;
}

.hero h1 span {
    color: var(--c-blue-lt);
}

.hero-sub {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: 36px;
    max-width: 620px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.75rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(8px);
    }
}

/* ── STATS BAR ──────────────────────────────────────── */
.stats-bar {
    background: var(--c-white);
    box-shadow: var(--shadow-md);
    padding: 32px 0;
    position: relative;
    z-index: 5;
}

.stats-inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
    gap: 24px;
}

.stat-item h3 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--c-blue);
    margin-bottom: 4px;
}

.stat-item p {
    font-size: 0.85rem;
    color: var(--c-muted);
    font-weight: 500;
}

.stat-item+.stat-item {
    border-left: 1px solid var(--c-border);
}

@media (max-width: 768px) {
    .stats-inner {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-item+.stat-item {
        border-left: none;
    }

    .stat-item:nth-child(2n+1) {
        border-right: 1px solid var(--c-border);
    }
}

@media (max-width: 480px) {
    .stats-inner {
        grid-template-columns: 1fr;
    }

    .stat-item+.stat-item {
        border-left: none;
        border-top: 1px solid var(--c-border);
        padding-top: 16px;
    }

    .stat-item:nth-child(2n+1) {
        border-right: none;
    }
}

/* ── PIPELINE DIAGRAM ───────────────────────────────── */
.pipeline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
    margin: 48px 0;
}

.pipeline-step {
    text-align: center;
    padding: 24px 20px;
    background: var(--c-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    min-width: 140px;
    flex: 1;
    transition: transform var(--transition), box-shadow var(--transition);
}

.pipeline-step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.pipeline-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--c-blue), var(--c-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    font-size: 1.4rem;
}

.pipeline-step h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--c-dark);
    margin-bottom: 4px;
}

.pipeline-step p {
    font-size: 0.75rem;
    color: var(--c-muted);
}

.pipeline-arrow {
    color: var(--c-orange);
    font-size: 1.6rem;
    padding: 0 6px;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .pipeline {
        flex-direction: column;
    }

    .pipeline-arrow {
        transform: rotate(90deg);
    }

    .pipeline-step {
        width: 100%;
    }
}

/* ── HUMS SECTION CARD ──────────────────────────────── */
.hums-section {
    background: var(--c-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    margin-bottom: 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.hums-section.reverse {
    direction: rtl;
}

.hums-section.reverse>* {
    direction: ltr;
}

.hums-img {
    width: 100%;
    height: 340px;
    object-fit: cover;
}

.hums-body {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hums-body h3 {
    color: var(--c-dark);
    margin-bottom: 12px;
}

.hums-body p {
    margin-bottom: 20px;
}

.hums-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--c-text);
    margin-bottom: 10px;
}

.hums-features li::before {
    content: '✓';
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(47, 111, 237, 0.1);
    color: var(--c-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    flex-shrink: 0;
}

@media (max-width: 768px) {

    .hums-section,
    .hums-section.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }

    .hums-img {
        height: 220px;
    }

    .hums-body {
        padding: 28px;
    }
}

/* ── AI CAPABILITY CARDS ────────────────────────────── */
.ai-card {
    background: var(--c-white);
    border-radius: var(--radius-md);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    border-top: 4px solid var(--c-blue);
    transition: transform var(--transition), box-shadow var(--transition);
}

.ai-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.ai-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--c-blue), #1a4db8);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 18px;
}

.ai-card h3 {
    color: var(--c-dark);
    margin-bottom: 10px;
}

/* ── RESEARCH SECTION ───────────────────────────────── */
.research-item {
    display: flex;
    gap: 28px;
    align-items: flex-start;
    padding: 36px;
    background: var(--c-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
    transition: transform var(--transition), box-shadow var(--transition);
}

.research-item:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-md);
}

.research-num {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--c-border);
    flex-shrink: 0;
    line-height: 1;
    min-width: 52px;
}

.research-item h3 {
    color: var(--c-dark);
    margin-bottom: 8px;
}

@media (max-width: 600px) {
    .research-item {
        flex-direction: column;
    }
}

/* ── RESOURCE CARDS ─────────────────────────────────── */
.resource-card {
    background: var(--c-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 28px;
    transition: transform var(--transition), box-shadow var(--transition);
}

.resource-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.resource-card h3 {
    color: var(--c-dark);
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--c-border);
}

.resource-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px solid var(--c-bg);
    transition: all var(--transition);
    cursor: pointer;
}

.resource-item:last-child {
    border-bottom: none;
}

.resource-item:hover .resource-title {
    color: var(--c-blue);
}

.resource-icon-file {
    width: 40px;
    height: 40px;
    background: rgba(47, 111, 237, 0.08);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.resource-title {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--c-text);
}

.resource-meta {
    font-size: 0.75rem;
    color: var(--c-muted);
}

.resource-dl {
    margin-left: auto;
    color: var(--c-blue);
    font-size: 0.9rem;
    opacity: 0;
    transition: opacity var(--transition);
}

.resource-item:hover .resource-dl {
    opacity: 1;
}

/* ── CONTACT FORM ───────────────────────────────────── */
.contact-wrap {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 48px;
    align-items: start;
}

.contact-info h2 {
    color: var(--c-dark);
    margin-bottom: 16px;
}

.contact-info p {
    margin-bottom: 32px;
}

.contact-feature {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 20px;
}

.contact-feature-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(47, 111, 237, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-feature h4 {
    font-size: 0.95rem;
    color: var(--c-dark);
    margin-bottom: 2px;
}

.contact-feature p {
    font-size: 0.85rem;
}

.contact-form {
    background: var(--c-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 44px;
}

.contact-form h3 {
    color: var(--c-dark);
    margin-bottom: 28px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--c-dark);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-family: 'Poppins', sans-serif;
    font-size: 0.92rem;
    color: var(--c-text);
    background: var(--c-bg);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--c-blue);
    box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.12);
    background: var(--c-white);
}

.form-group textarea {
    resize: vertical;
    min-height: 130px;
}

@media (max-width: 768px) {
    .contact-wrap {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 28px;
    }
}

/* ── WHY UFLIGHT SECTION ────────────────────────────── */
.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.why-card {
    background: var(--c-white);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition);
}

.why-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.why-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(47, 111, 237, 0.1), rgba(14, 42, 71, 0.12));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    margin: 0 auto 16px;
}

.why-card h3 {
    color: var(--c-dark);
    font-size: 1rem;
    margin-bottom: 8px;
}

.why-card p {
    font-size: 0.88rem;
}

@media (max-width: 768px) {
    .why-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ── CTA BAND ───────────────────────────────────────── */
.cta-band {
    background: linear-gradient(135deg, var(--c-blue), var(--c-dark));
    padding: 64px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-band::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 70% 50%, rgba(255, 122, 26, 0.15), transparent 60%);
}

.cta-band-inner {
    position: relative;
    z-index: 1;
}

.cta-band h2 {
    color: var(--c-white);
    margin-bottom: 14px;
}

.cta-band p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 1.05rem;
    max-width: 560px;
    margin: 0 auto 32px;
}

.cta-band-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}