:root {
    --blue-50: #eff6ff;
    --blue-100: #dbeafe;
    --blue-300: #93c5fd;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-800: #1e40af;
    --blue-900: #1e3a8a;
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --white: #ffffff;
    --radius: 0.75rem;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--slate-50);
    color: var(--slate-900);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    display: block;
    max-width: 100%;
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--slate-200);
}

.nav-inner {
    max-width: 1152px;
    margin: 0 auto;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    cursor: pointer;
}

.nav-logo {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.5rem;
    background: var(--slate-900);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
}

    .nav-logo svg {
        width: 1.5rem;
        height: 1.5rem;
    }

.nav-brand-text {
    line-height: 1.1;
}

.nav-brand-title {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--slate-900);
}

.nav-brand-sub {
    font-size: 0.6875rem;
    color: var(--slate-500);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link {
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--slate-700);
    cursor: pointer;
    border: none;
    background: transparent;
    transition: background 0.15s;
}

    .nav-link:hover {
        background: var(--slate-100);
    }

    .nav-link.active {
        background: var(--slate-900);
        color: #fff;
    }

.nav-cta {
    margin-left: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    background: var(--blue-600);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background 0.15s;
}

    .nav-cta:hover {
        background: var(--blue-700);
    }

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

    .nav-toggle svg {
        width: 1.5rem;
        height: 1.5rem;
        color: var(--slate-700);
    }

.nav-mobile {
    display: none;
    border-top: 1px solid var(--slate-200);
    background: #fff;
    padding: 0.5rem 1rem;
}

    .nav-mobile .nav-link {
        display: block;
        width: 100%;
        text-align: left;
        padding: 0.625rem 0.75rem;
    }

/* Sections */
.section {
    display: none;
}

    .section.active {
        display: block;
    }

.container {
    max-width: 1152px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Hero */
.hero {
    position: relative;
    overflow: hidden;
    background: var(--slate-900);
    color: #fff;
    min-height: 420px;
}

.hero-slides {
    position: absolute;
    inset: 0;
}

.hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

    .hero-slide.active {
        opacity: 1;
    }

    .hero-slide img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15,23,42,0.88), rgba(30,58,138,0.72));
}

.hero-content {
    position: relative;
    max-width: 1152px;
    margin: 0 auto;
    padding: 5rem 1rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(37,99,235,0.2);
    color: var(--blue-100);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid rgba(147,197,253,0.3);
}

.hero h1 {
    margin-top: 1.25rem;
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.1;
    max-width: 48rem;
    outline: none !important;
    box-shadow: none !important;
}

.hero p {
    margin-top: 1.25rem;
    font-size: 1.125rem;
    color: var(--blue-100);
    max-width: 42rem;
}

.hero-btns {
    margin-top: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.btn-white {
    background: #fff;
    color: var(--blue-900);
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background 0.15s;
}

    .btn-white:hover {
        background: var(--blue-50);
    }

.btn-outline {
    background: rgba(255,255,255,0.1);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid rgba(255,255,255,0.3);
    cursor: pointer;
    transition: background 0.15s;
}

    .btn-outline:hover {
        background: rgba(255,255,255,0.2);
    }

.hero-dots {
    position: absolute;
    bottom: 1.25rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    z-index: 5;
}

.hero-dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 9999px;
    border: none;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: all 0.2s;
    padding: 0;
}

    .hero-dot.active {
        width: 1.5rem;
        background: #fff;
    }

/* Quick cards */
.quick-cards {
    padding: 3rem 0;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.card-link {
    display: block;
    border: 1px solid var(--slate-200);
    background: #fff;
    border-radius: var(--radius);
    padding: 1.5rem;
    cursor: pointer;
    transition: border-color 0.15s, box-shadow 0.15s;
}

    .card-link:hover {
        border-color: var(--blue-300);
        box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    }

.card-icon {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 0.5rem;
    background: var(--blue-50);
    color: var(--blue-700);
    display: flex;
    align-items: center;
    justify-content: center;
}

    .card-icon svg {
        width: 1.5rem;
        height: 1.5rem;
    }

.card-link h3 {
    margin-top: 1rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--slate-900);
}

.card-link p {
    margin-top: 0.375rem;
    font-size: 0.875rem;
    color: var(--slate-600);
}

/* About */
.about {
    padding: 4rem 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: center;
}

.about h2 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--slate-900);
}

.about p {
    margin-top: 1rem;
    color: var(--slate-600);
}

.about-stats {
    margin-top: 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.about-stat strong {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--blue-700);
}

.about-stat span {
    font-size: 0.875rem;
    color: var(--slate-500);
}

.features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.feature {
    border: 1px solid var(--slate-200);
    background: #fff;
    border-radius: var(--radius);
    padding: 1.25rem;
}

    .feature svg {
        width: 1.75rem;
        height: 1.75rem;
        color: var(--blue-700);
    }

    .feature h4 {
        margin-top: 0.75rem;
        font-size: 0.875rem;
        font-weight: 600;
    }

    .feature p {
        margin-top: 0.25rem;
        font-size: 0.75rem;
        color: var(--slate-600);
    }

/* Process */
.process {
    background: #fff;
    padding: 4rem 0;
}

    .process h2 {
        text-align: center;
        font-size: 1.875rem;
        font-weight: 700;
    }

.process-sub {
    text-align: center;
    margin: 0.75rem auto 0;
    max-width: 36rem;
    color: var(--slate-600);
}

.process-grid {
    margin-top: 2.5rem;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.step {
    border: 1px solid var(--slate-200);
    background: var(--slate-50);
    border-radius: var(--radius);
    padding: 1.5rem;
    position: relative;
}

.step-num {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 9999px;
    background: var(--blue-600);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 700;
}

.step h4 {
    margin-top: 1rem;
    font-size: 1rem;
    font-weight: 600;
}

.step p {
    margin-top: 0.375rem;
    font-size: 0.875rem;
    color: var(--slate-600);
}

.process-cta {
    margin-top: 2.5rem;
    text-align: center;
}

.btn-blue {
    background: var(--blue-600);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background 0.15s;
}

    .btn-blue:hover {
        background: var(--blue-700);
    }

/* Page header */
.page-header {
    background: var(--slate-900);
    color: #fff;
    padding: 3rem 0;
}

    .page-header h1 {
        font-size: 2rem;
        font-weight: 700;
    }

    .page-header p {
        margin-top: 0.75rem;
        color: var(--blue-100);
        max-width: 42rem;
    }

/* Dates */
.dates-list {
    padding: 3rem 0;
}

.date-card {
    border: 1px solid var(--slate-200);
    background: #fff;
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.date-card-main {
    flex: 1;
    min-width: 250px;
}

.date-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--slate-900);
}

.date-meta {
    margin-top: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--slate-600);
}

    .date-meta span {
        display: inline-flex;
        align-items: center;
        gap: 0.25rem;
    }

.date-start {
    font-size: 1rem;
    color: var(--slate-900);
}

    .date-start strong {
        font-weight: 700;
        display: inline-block;
        margin-left: 0.25rem;
    }

.date-desc {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--slate-600);
}

.spots-badge {
    display: inline-block;
    margin-top: 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    background: var(--blue-50);
    color: var(--blue-700);
}

    .spots-badge.full {
        background: var(--slate-100);
        color: var(--slate-500);
    }

    .spots-badge.cancelled {
        background: #fee2e2;
        color: #b91c1c;
    }

.date-card-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Registration form */
.reg-form {
    padding: 3rem 0;
}

.form-card {
    max-width: 36rem;
    margin: 0 auto;
    border: 1px solid var(--slate-200);
    background: #fff;
    border-radius: var(--radius);
    padding: 2rem;
}

.form-group {
    margin-bottom: 1rem;
}

    .form-group label {
        display: block;
        font-size: 0.875rem;
        font-weight: 600;
        margin-bottom: 0.25rem;
    }

    .form-group input, .form-group textarea, .form-group select {
        width: 100%;
        padding: 0.625rem 0.75rem;
        border: 1px solid var(--slate-300);
        border-radius: 0.375rem;
        font-size: 0.875rem;
        font-family: inherit;
    }

        .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
            outline: none;
            border-color: var(--blue-600);
            box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
        }

.form-success {
    background: var(--blue-50);
    border: 1px solid var(--blue-300);
    border-radius: 0.5rem;
    padding: 1.5rem;
    text-align: center;
    color: var(--blue-800);
}

    .form-success svg {
        width: 3rem;
        height: 3rem;
        margin: 0 auto;
        color: var(--blue-600);
    }

/* Requirements */
.req-content {
    padding: 3rem 0;
}

.req-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.req-card {
    border: 1px solid var(--slate-200);
    background: #fff;
    border-radius: var(--radius);
    padding: 1.5rem;
}

    .req-card h3 {
        font-size: 1.125rem;
        font-weight: 600;
        margin-bottom: 0.75rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .req-card svg {
        width: 1.25rem;
        height: 1.25rem;
        color: var(--blue-700);
    }

    .req-card ul {
        list-style: none;
    }

    .req-card li {
        padding: 0.375rem 0 0.375rem 1.25rem;
        position: relative;
        font-size: 0.875rem;
        color: var(--slate-600);
    }

        .req-card li::before {
            content: "•";
            position: absolute;
            left: 0;
            color: var(--blue-600);
            font-weight: 700;
        }

/* Contacts */
.contacts-content {
    padding: 3rem 0;
}

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

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

    .contact-item svg {
        width: 1.5rem;
        height: 1.5rem;
        color: var(--blue-700);
        flex-shrink: 0;
    }

    .contact-item h4 {
        font-size: 0.875rem;
        font-weight: 600;
    }

    .contact-item p {
        font-size: 0.875rem;
        color: var(--slate-600);
    }

.map-embed {
    border: 1px solid var(--slate-200);
    border-radius: var(--radius);
    overflow: hidden;
}

    .map-embed iframe {
        width: 100%;
        height: 320px;
        border: 0;
    }

/* Footer */
.footer {
    background: var(--slate-900);
    color: var(--slate-300);
    padding: 3rem 0 1.5rem;
    margin-top: 2rem;
}

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

.footer h4 {
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.footer a {
    display: block;
    font-size: 0.875rem;
    color: var(--slate-400);
    padding: 0.25rem 0;
    cursor: pointer;
}

    .footer a:hover {
        color: #fff;
    }

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    margin-bottom: 0.75rem;
}

    .footer-brand .nav-logo {
        background: var(--blue-600);
    }

    .footer-brand strong {
        color: #fff;
        font-size: 0.875rem;
    }

.footer p {
    font-size: 0.8125rem;
    color: var(--slate-400);
}

.footer-bottom {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--slate-800);
    text-align: center;
    font-size: 0.8125rem;
    color: var(--slate-500);
}

.id-spinner {
    width: 20px;
    height: 20px;
    border: 3px solid #cbd5e1;
    border-top-color: #2563eb;
    border-radius: 50%;
    display: inline-block;
    animation: id-spin 0.8s linear infinite;
}

@@keyframes id-spin {
    to {
        transform: rotate(360deg);
    }
}

.form-card {
    position: relative;
}

.form-loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.85);
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    border-radius: inherit;
    font-weight: 600;
    color: #1e293b;
}

    .form-loading-overlay .id-spinner {
        width: 44px;
        height: 44px;
        border-width: 5px;
    }

.validation-summary-box {
    background: #fef2f2;
    border: 1px solid #fca5a5;
    border-left: 5px solid #dc2626;
    color: #991b1b;
    border-radius: 6px;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
}

    .validation-summary-box ul {
        margin: 0;
        padding-left: 1.25rem;
    }

.validation-message {
    color: #dc2626;
    font-size: 0.875rem;
    font-weight: 600;
    margin-top: 0.25rem;
}

.form-control.invalid, input.invalid, textarea.invalid, select.invalid {
    border-color: #dc2626 !important;
    box-shadow: 0 0 0 2px rgba(220,38,38,0.15);
}

.form-control.valid.modified:not(.invalid) {
    border-color: #16a34a;
}

.upload-box {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    padding: 1rem;
    border: 2px dashed #94a3b8;
    border-radius: 8px;
    background: #f8fafc;
}

.upload-input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    overflow: hidden;
}

.upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    padding: 0.6rem 1.1rem;
    background: #2563eb;
    color: #fff;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
}

    .upload-btn:hover {
        background: #1d4ed8;
    }

.upload-input:focus-visible + .upload-btn {
    outline: 3px solid #93c5fd;
}

.upload-name {
    color: #64748b;
    font-size: 0.9rem;
    word-break: break-all;
}

.upload-hint {
    margin-top: 0.5rem;
    color: #475569;
    font-size: 0.875rem;
}

.consent-box {
    background: #f8fafc;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    padding: 0.75rem 1rem;
}

.consent-label {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    font-weight: 400;
    font-size: 0.875rem;
    color: #334155;
    cursor: pointer;
}

    .consent-label input {
        margin-top: 0.25rem;
        flex-shrink: 0;
        width: 18px;
        height: 18px;
    }

.recognition-warning {
    background: #fffbeb;
    border: 1px solid #fcd34d;
    border-left: 5px solid #f59e0b;
    color: #92400e;
    border-radius: 6px;
    padding: 0.75rem 1rem;
    margin-top: 0.5rem;
}
/* Nav login */
.nav-login {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    margin-left: 0.5rem;
    padding: 0.4375rem 0.875rem;
    border-radius: 9999px;
    border: 1px solid var(--slate-300);
    background: #fff;
    color: var(--slate-700);
    font-size: 0.8125rem;
    font-weight: 600;
    white-space: nowrap;
    transition: background 0.15s, border-color 0.15s;
}

    .nav-login:hover {
        background: var(--slate-100);
        border-color: var(--slate-500);
    }

    .nav-login svg {
        width: 1rem;
        height: 1rem;
    }

.nav-login-mobile {
    display: block;
    margin: 0.5rem 0;
    padding: 0.625rem 0.75rem;
    border-radius: 0.375rem;
    text-align: center;
}

/* Admin bar above the logo */
.admin-bar {
    background: var(--slate-900);
    border-bottom: 1px solid var(--slate-700);
}

.admin-bar-inner {
    max-width: 1152px;
    margin: 0 auto;
    padding: 0.375rem 1rem;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
}

    .admin-bar-inner form { margin: 0; }

    .admin-bar-inner .nav-admin-hello {
        background: transparent;
        color: var(--blue-100);
    }

        .admin-bar-inner .nav-admin-hello:hover {
            background: rgba(255, 255, 255, 0.1);
        }

    .admin-bar-inner .nav-logout {
        background: transparent;
        color: #fff;
        border-color: var(--slate-500);
        padding: 0.25rem 0.75rem;
    }

        .admin-bar-inner .nav-logout:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
        }

.admin-bar-inner .nav-admin-link {
    border: 1px solid var(--slate-500);
    color: #fff;
}

    .admin-bar-inner .nav-admin-link.active {
        background: rgba(255, 255, 255, 0.15);
        border-color: #fff;
    }

.admin-bar-inner .nav-admin-name:hover {
    background: transparent;
}

/* Nav admin */
.nav-admin {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 0.75rem;
    padding-left: 0.75rem;
    border-left: 1px solid var(--slate-200);
}

    .nav-admin form { margin: 0; }

.nav-admin-hello {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    border-radius: 9999px;
    background: var(--blue-50);
    color: var(--blue-700);
    font-size: 0.8125rem;
    font-weight: 600;
    white-space: nowrap;
}

    .nav-admin-hello:hover { background: var(--blue-100); }

    .nav-admin-hello svg {
        width: 1rem;
        height: 1rem;
    }

.nav-logout {
    padding: 0.375rem 0.875rem;
    border-radius: 9999px;
    border: 1px solid var(--slate-300);
    background: #fff;
    color: var(--slate-700);
    font-family: inherit;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

    .nav-logout:hover {
        background: var(--slate-100);
        border-color: var(--slate-500);
    }

.nav-logout-mobile {
    display: block;
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.625rem 0.75rem;
    border-radius: 0.375rem;
}

/* Nav dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown > .nav-link { font-family: inherit; }
.nav-caret { font-size: 0.7rem; margin-left: 0.15rem; }
.nav-submenu {
    display: none; position: absolute; top: 100%; right: 0; min-width: 11rem;
    background: #fff; border: 1px solid var(--slate-200); border-radius: 0.5rem;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1); padding: 0.25rem; z-index: 200;
}
.nav-dropdown:hover .nav-submenu,
.nav-dropdown:focus-within .nav-submenu { display: block; }
.nav-sublink {
    display: block; padding: 0.5rem 0.75rem; border-radius: 0.375rem;
    font-size: 0.875rem; font-weight: 500; color: var(--slate-700);
}
.nav-sublink:hover { background: var(--slate-100); }
.nav-sublink.active { background: var(--slate-900); color: #fff; }

.nav-mobile-group {
    padding: 0.75rem 0.75rem 0.25rem; font-size: 0.75rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.05em; color: var(--slate-500);
}
.nav-mobile .nav-link-sub { padding-left: 1.5rem; }
.nav-cta-mobile { display: block; margin: 0.75rem 0 0.5rem; text-align: center; }

/* Mega menu */
.nav-dropdown { position: static; }

.nav-mega {
    min-width: 0;
    left: 0;
    right: 0;
    top: 100%;
    width: auto;
    padding: 1rem max(1rem, calc((100% - 1152px) / 2 + 1rem));
    border: none;
    border-bottom: 1px solid var(--slate-200);
    border-radius: 0 0 0.75rem 0.75rem;
    background: #fff;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.15);
}

.nav-dropdown:hover .nav-mega,
.nav-dropdown:focus-within .nav-mega {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.nav-mega::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: -1rem;
    height: 1rem;
}

.mega-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: 0.5rem;
    color: var(--slate-700);
    transition: background 0.15s;
}

    .mega-item:hover {
        background: var(--blue-50);
    }

    .mega-item.active {
        background: var(--slate-100);
    }

.mega-icon {
    flex-shrink: 0;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 0.5rem;
    background: var(--blue-50);
    color: var(--blue-700);
    display: flex;
    align-items: center;
    justify-content: center;
}

    .mega-icon svg {
        width: 1.25rem;
        height: 1.25rem;
    }

.mega-item:hover .mega-icon {
    background: var(--blue-600);
    color: #fff;
}

.mega-text strong {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--slate-900);
}

.mega-text small {
    display: block;
    margin-top: 0.125rem;
    font-size: 0.75rem;
    line-height: 1.35;
    color: var(--slate-500);
}

/* Nav wraps under the logo on medium screens */
@media (min-width: 769px) and (max-width: 1000px) {
    .nav-inner {
        flex-wrap: wrap;
        row-gap: 0.5rem;
    }

    .nav-links {
        flex: 0 0 100%;
        flex-wrap: wrap;
        justify-content: flex-start;
        border-top: 1px solid var(--slate-200);
        padding-top: 0.5rem;
    }

    .nav-submenu {
        right: 0;
        left: 0;
    }
}

/* Responsive */
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0s linear 0.3s;
    z-index: 90;
}

    .nav-overlay.open {
        opacity: 1;
        visibility: visible;
        transition: opacity 0.3s ease, visibility 0s;
    }

@media (min-width: 769px) {
    .nav-overlay {
        display: none;
    }
}
@media (max-width: 768px) {
    .nav-mobile {
        display: block;
        position: absolute;
        top: 100%;
        right: 0;
        width: min(18rem, 85vw);
        height: calc(100vh - 100%);
        min-height: 20rem;
        overflow-y: auto;
        border-left: 1px solid var(--slate-200);
        box-shadow: -8px 0 24px rgba(0,0,0,0.12);
        visibility: hidden;
        opacity: 0;
        transform: translateX(100%);
        clip-path: inset(0 0 0 100%);
        transition: transform 0.3s ease, opacity 0.3s ease, clip-path 0.3s ease, visibility 0s linear 0.3s;
    }

    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: block;
    }

    .nav-mobile.open {
        visibility: visible;
        opacity: 1;
        transform: translateX(0);
        clip-path: inset(0 0 0 0);
        transition: transform 0.3s ease, opacity 0.3s ease, clip-path 0.3s ease, visibility 0s;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero-content {
        padding: 3rem 1rem;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .features {
        grid-template-columns: 1fr;
    }

    .process-grid {
        grid-template-columns: 1fr 1fr;
    }

    .req-grid {
        grid-template-columns: 1fr;
    }

    .contacts-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }
}

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