/* App layer: responsive polish and daily-use shortcuts */
:root {
    --app-header-height: 76px;
    --app-bottom-height: 72px;
    --app-border: #e5e7eb;
    --app-surface: #ffffff;
    --app-muted: #f3f4f6;
    --app-focus: #0ea5e9;
}

html {
    scroll-padding-top: calc(var(--app-header-height) + 16px);
}

body {
    min-height: 100svh;
}

.skip-link {
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 2000;
    transform: translateY(-140%);
    background: var(--secondary-blue);
    color: #fff;
    padding: .75rem 1rem;
    border-radius: 8px;
}

.skip-link:focus {
    transform: translateY(0);
}

.site-header {
    backdrop-filter: blur(14px);
    background: rgba(255, 255, 255, .94);
}

.site-header.scrolled {
    box-shadow: 0 12px 30px rgba(15, 23, 42, .12);
}

.btn,
.btn-cta,
.btn-submit,
.card,
.proposal-card,
.news-card,
.contact-form,
.top-bar,
.contact-icon,
.card-icon,
.social-links a,
.hero-image img,
.about-image img {
    border-radius: 8px !important;
}

.btn,
.btn-cta,
.btn-submit,
.nav-link,
.service-card,
.app-quick-action,
.app-bottom-nav a,
.subject-chips button {
    min-height: 44px;
}

.btn:focus-visible,
.btn-cta:focus-visible,
.btn-submit:focus-visible,
.nav-link:focus-visible,
.service-card:focus-visible,
.app-quick-action:focus-visible,
.app-bottom-nav a:focus-visible,
.form-control:focus-visible,
.mobile-menu-toggle:focus-visible,
.mobile-nav-close:focus-visible,
.subject-chips button:focus-visible {
    outline: 3px solid var(--app-focus);
    outline-offset: 3px;
}

.hero {
    min-height: min(760px, calc(100svh - var(--app-header-height)));
}

.hero-container {
    align-items: end;
}

.hero-content h1,
.section-header h2 {
    overflow-wrap: anywhere;
}

.hero-stats {
    align-items: stretch;
}

.stat {
    display: flex;
    min-width: 132px;
    flex-direction: column;
    justify-content: center;
}

.service-hub {
    background: #fff;
    padding-top: 4rem;
    padding-bottom: 4rem;
}

.section-header.compact {
    margin-bottom: 2rem;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: .25rem .75rem;
    border-radius: 8px;
    background: #ecfdf5;
    color: #047857;
    font-weight: 800;
    font-size: .82rem;
    text-transform: uppercase;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.service-card {
    display: grid;
    align-content: start;
    gap: .75rem;
    padding: 1.25rem;
    border: 1px solid var(--app-border);
    border-top: 4px solid var(--primary-red);
    border-radius: 8px;
    background: var(--app-surface);
    box-shadow: 0 12px 28px rgba(15, 23, 42, .08);
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-yellow);
    box-shadow: 0 18px 34px rgba(15, 23, 42, .12);
}

.service-card i {
    width: 48px;
    height: 48px;
    display: inline-grid;
    place-items: center;
    border-radius: 8px;
    background: #fef3c7;
    color: var(--primary-red);
    font-size: 1.35rem;
}

.service-card strong {
    color: var(--secondary-blue);
    font-family: var(--font-heading);
    font-size: 1.05rem;
}

.service-card span {
    color: var(--text-light);
    font-size: .95rem;
}

.app-quick-actions {
    position: fixed;
    right: 18px;
    bottom: 96px;
    z-index: 900;
    display: grid;
    gap: .65rem;
}

.app-quick-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .55rem;
    padding: .75rem 1rem;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    background: rgba(255, 255, 255, .96);
    color: var(--secondary-blue);
    box-shadow: 0 12px 30px rgba(15, 23, 42, .14);
    font-weight: 800;
}

.app-quick-action.primary {
    background: var(--primary-red);
    border-color: var(--primary-red);
    color: #fff;
}

.app-bottom-nav {
    display: none;
}

.subject-chips {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-top: .75rem;
}

.subject-chips button {
    border: 1px solid var(--app-border);
    border-radius: 8px;
    background: #fff;
    color: var(--secondary-blue);
    cursor: pointer;
    font-weight: 700;
    padding: .45rem .75rem;
}

.subject-chips button:hover,
.subject-chips button.active {
    background: var(--secondary-blue);
    border-color: var(--secondary-blue);
    color: #fff;
}

select.form-control {
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, #6b7280 50%), linear-gradient(135deg, #6b7280 50%, transparent 50%);
    background-position: calc(100% - 18px) 50%, calc(100% - 12px) 50%;
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
}

.contact-form-content {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 1rem;
}

.contact-form-content .form-group:has(textarea),
.contact-form-content .btn-submit {
    grid-column: 1 / -1;
}

.back-to-top {
    right: 18px;
    bottom: 22px;
}

@media (max-width: 1100px) {
    .nav-links {
        gap: .35rem;
    }

    .nav-link {
        padding-inline: .65rem;
    }

    .btn-cta {
        padding-inline: 1rem;
    }

    .service-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 968px) {
    body {
        padding-bottom: calc(var(--app-bottom-height) + env(safe-area-inset-bottom, 0px));
    }

    .site-header {
        min-height: var(--app-header-height);
    }

    .hero {
        padding-top: 2rem !important;
        min-height: auto !important;
    }

    .hero-container {
        align-items: center;
    }

    .hero-content h1 {
        font-size: clamp(2.15rem, 12vw, 3rem) !important;
    }

    .hero-stats {
        display: grid !important;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: .65rem !important;
    }

    .stat {
        min-width: 0 !important;
        padding: .75rem .45rem !important;
    }

    .stat-label {
        font-size: .75rem !important;
        line-height: 1.2;
    }

    .service-hub {
        padding: 3rem 1rem !important;
    }

    .contact-form-content {
        grid-template-columns: 1fr;
    }

    .contact-method {
        align-items: flex-start !important;
        flex-wrap: nowrap !important;
    }

    .app-quick-actions {
        display: none;
    }

    .app-bottom-nav {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 950;
        display: grid;
        grid-template-columns: repeat(5, minmax(0, 1fr));
        min-height: calc(var(--app-bottom-height) + env(safe-area-inset-bottom, 0px));
        padding: .35rem .35rem calc(.35rem + env(safe-area-inset-bottom, 0px));
        border-top: 1px solid var(--app-border);
        background: rgba(255, 255, 255, .96);
        box-shadow: 0 -12px 32px rgba(15, 23, 42, .12);
        backdrop-filter: blur(14px);
    }

    .app-bottom-nav a {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: .18rem;
        border-radius: 8px;
        color: var(--text-light);
        font-size: .72rem;
        font-weight: 800;
    }

    .app-bottom-nav i {
        font-size: 1rem;
    }

    .app-bottom-nav a.active,
    .app-bottom-nav a:hover {
        background: #fef2f2;
        color: var(--primary-red);
    }

    .app-bottom-nav .bottom-nav-main {
        background: var(--primary-red);
        color: #fff;
    }

    .app-bottom-nav .bottom-nav-main.active,
    .app-bottom-nav .bottom-nav-main:hover {
        background: var(--primary-red);
        color: #fff;
    }

    .back-to-top {
        display: none !important;
    }
}

@media (max-width: 640px) {
    .service-grid {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-buttons .btn,
    .btn-submit {
        max-width: none !important;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .news-content,
    .card,
    .proposal-card,
    .contact-form {
        padding: 1.15rem !important;
    }

    .contact-method {
        gap: .9rem !important;
    }

    .contact-icon {
        width: 48px !important;
        height: 48px !important;
        font-size: 1.15rem !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    .service-card,
    .app-quick-action {
        transition: none;
    }
}