/* ==========================================================================
   Test to Table — Responsive Styles
   Mobile-first media queries.
   ========================================================================== */

/* --- Mobile (< 768px) --- */
@media (max-width: 767px) {
    .gt-nav__toggle {
        display: inline-flex;
    }

    .gt-nav__links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: var(--space-md);
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 12px 32px rgba(2, 73, 42, 0.12);
        max-height: calc(100vh - 100%);
        overflow-y: auto;
    }

    .gt-nav__links--open {
        display: flex;
    }

    .gt-nav__links > li {
        width: 100%;
    }

    .gt-nav__links > li > .gt-nav__link,
    .gt-nav__dropdown-toggle {
        display: flex;
        width: 100%;
        padding: var(--space-md) var(--space-sm);
        font-size: var(--font-size-base);
        border-bottom: 1px solid var(--color-border);
    }

    .gt-nav__dropdown {
        width: 100%;
    }

    .gt-nav__dropdown-toggle {
        justify-content: space-between;
        cursor: pointer;
    }

    .gt-nav__dropdown-caret {
        display: inline-block;
    }

    .gt-nav__dropdown-menu {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.2s ease;
    }

    .gt-nav__dropdown--open .gt-nav__dropdown-menu {
        max-height: 600px;
    }

    .gt-nav__dropdown--open .gt-nav__dropdown-caret {
        transform: rotate(180deg);
    }

    .gt-nav__dropdown-item {
        padding: var(--space-sm) var(--space-md);
    }

    .gt-btn--nav {
        width: 100%;
        margin-top: var(--space-sm);
    }

    .gt-hero {
        padding: var(--space-2xl) 0 var(--space-xl);
    }

    .gt-hero__title {
        font-size: 2rem;
    }

    .gt-hero__subtitle {
        font-size: var(--font-size-base);
    }

    .gt-steps {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .gt-proof-grid {
        grid-template-columns: 1fr;
    }

    .gt-comparison {
        padding: 30px 15px;
        border-radius: var(--radius-lg);
    }

    .gt-comparison__table th,
    .gt-comparison__table td {
        padding: var(--space-md);
        font-size: var(--font-size-sm);
    }

    .gt-section {
        padding: 60px 0;
    }

    .gt-upload {
        padding: 40px 20px;
    }

    .gt-upload__supported {
        flex-wrap: wrap;
        gap: var(--space-md);
    }

    .gt-card {
        padding: var(--space-lg);
    }

    .gt-delivery__actions {
        flex-direction: column;
        align-items: stretch;
    }

    .gt-checkout__summary {
        padding: var(--space-lg);
    }

    .gt-cta-banner {
        padding: 60px 0;
    }

    .gt-marker {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* --- Tablet (768px–991px) --- */
@media (min-width: 768px) and (max-width: 991px) {
    .gt-steps {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-lg);
    }

    .gt-proof-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* --- Desktop (992px+) --- */
@media (min-width: 992px) {
    .gt-steps {
        grid-template-columns: repeat(3, 1fr);
    }

    .gt-proof-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}