/* ==========================================================
   G&S Quotient Website
   Responsive Stylesheet
   ========================================================== */

/* Hamburger nav — active when JS detects insufficient space (any viewport width) */
.site-header.nav-collapsed .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 0 max(28px, 8vw);
    padding-left: max(32px, calc(8vw + env(safe-area-inset-left, 0px)));
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
}

.site-header.nav-collapsed .main-nav.open {
    max-height: 360px;
    padding-top: 20px;
    padding-bottom: 28px;
    padding-right: max(28px, 8vw);
    padding-left: max(32px, calc(8vw + env(safe-area-inset-left, 0px)));
}

.site-header.nav-collapsed .main-nav ul {
    flex-direction: column;
    gap: 0;
}

.site-header.nav-collapsed .main-nav li {
    border-bottom: 1px solid #eee;
}

.site-header.nav-collapsed .main-nav li:last-child {
    border-bottom: none;
}

.site-header.nav-collapsed .main-nav a {
    display: block;
    padding: 16px 0 16px 10px;
    font-size: 16px;
    font-weight: 500;
    color: #141414;
}

.site-header.nav-collapsed .nav-toggle {
    display: flex;
}

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

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

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

@media (min-width: 1200px) {
    .hero-bg img {
        object-position: 78% center;
    }
}

@media (min-width: 1600px) {
    .hero-bg img {
        object-position: 82% center;
    }

    .platform-flowchart {
        transform: scale(1.12);
    }
}

@media (max-width: 1024px) {
    .platform-grid {
        gap: var(--content-block-gap);
    }

    .platform-flowchart {
        transform: scale(1.02);
    }

    .three-col-grid {
        gap: 36px;
    }

    .two-col-grid {
        gap: 40px;
    }
}

@media (max-width: 900px) {

    /* No-JS fallback on narrow screens */
    .site-header:not(.nav-js-ready) .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--border);
        padding: 0 max(28px, 8vw);
        padding-left: max(32px, calc(8vw + env(safe-area-inset-left, 0px)));
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease, padding 0.35s ease;
    }

    .site-header:not(.nav-js-ready) .main-nav.open {
        max-height: 360px;
        padding-top: 20px;
        padding-bottom: 28px;
        padding-right: max(28px, 8vw);
        padding-left: max(32px, calc(8vw + env(safe-area-inset-left, 0px)));
    }

    .site-header:not(.nav-js-ready) .main-nav ul {
        flex-direction: column;
        gap: 0;
    }

    .site-header:not(.nav-js-ready) .main-nav li {
        border-bottom: 1px solid #eee;
    }

    .site-header:not(.nav-js-ready) .main-nav li:last-child {
        border-bottom: none;
    }

    .site-header:not(.nav-js-ready) .main-nav a {
        display: block;
        padding: 16px 0 16px 10px;
        font-size: 16px;
        font-weight: 500;
        color: #141414;
    }

    .site-header:not(.nav-js-ready) .nav-toggle {
        display: flex;
    }

    .site-header:not(.nav-js-ready) .nav-toggle.open span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .site-header:not(.nav-js-ready) .nav-toggle.open span:nth-child(2) {
        opacity: 0;
    }

    .site-header:not(.nav-js-ready) .nav-toggle.open span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

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

    .platform-flowchart {
        transform: none;
        padding-top: 0;
    }

    .three-col-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .deployment-panels {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .deployment-subcards {
        grid-template-columns: 1fr;
    }

    .deployment-cards-area {
        height: auto !important;
        min-height: 0 !important;
    }

    .deployment-subcard--featured {
        min-height: 0;
        height: auto;
    }

    .flow-branch--desktop {
        display: block;
        height: 44px;
    }

    .flow-arrow--mobile {
        display: none;
    }

    .flow-trunk {
        width: min(74%, 304px);
    }

    .flow-trunk .flow-box--primary .flow-box-title--platform {
        font-size: clamp(12px, 3.2vw, 14px);
    }

    .flow-branch-row {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        width: 100%;
    }

    .flow-branch-row .flow-box {
        min-height: 68px;
        padding: 16px 8px;
    }

    .flow-branch-row .flow-box-title {
        font-size: 11px;
        line-height: 1.35;
    }

    .flow-box-title--single {
        font-size: 12px;
    }

    .two-col-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .footer-left,
    .footer-right {
        grid-row: auto;
        grid-column: 1;
        padding-bottom: 0;
    }

    .footer-bottom {
        grid-row: auto;
        grid-column: 1;
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .about-meta {
        grid-template-columns: 1fr;
        justify-content: center;
        gap: 32px;
        text-align: center;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding-y: clamp(72px, 12vw, 96px);
        --intro-to-content-gap: 56px;
        --content-block-gap: 40px;
    }

    .hero {
        min-height: auto;
        align-items: stretch;
    }

    .hero-inner {
        padding: 16px 0 56px;
        width: min(96%, var(--container));
    }

    .hero-line-nowrap {
        white-space: nowrap;
    }

    .hero-bg img {
        object-position: 92% center;
    }

    .hero-gradient {
        background: linear-gradient(
            to right,
            rgba(255, 255, 255, 1) 0%,
            rgba(255, 255, 255, 1) 34%,
            rgba(255, 255, 255, 0.98) 44%,
            rgba(255, 255, 255, 0.9) 54%,
            rgba(255, 255, 255, 0.68) 64%,
            rgba(255, 255, 255, 0.32) 74%,
            rgba(255, 255, 255, 0.08) 84%,
            rgba(255, 255, 255, 0) 92%
        );
    }

    .hero-content {
        max-width: min(370px, 96vw);
    }

    .hero-content p {
        max-width: min(288px, 72vw);
        color: var(--text);
        text-shadow: none;
        padding: 10px 16px 10px 0;
        background: linear-gradient(
            90deg,
            rgba(255, 255, 255, 0.98) 0%,
            rgba(255, 255, 255, 0.95) 78%,
            rgba(255, 255, 255, 0.72) 92%,
            rgba(255, 255, 255, 0) 100%
        );
    }

    .hero-content p + p {
        text-shadow: none;
        margin-top: -6px;
    }

    .hero h1 {
        font-size: clamp(23px, 5.6vw, 32px);
        line-height: 1.32;
        margin-bottom: 28px;
        text-shadow: none;
    }

    .hero-divider {
        max-width: 100%;
        background: var(--border);
    }

    .hero-stats {
        max-width: 100%;
        gap: 28px 32px;
    }

    .philosophy-quote {
        margin-top: var(--intro-to-content-gap);
    }

    .philosophy-header h2 {
        font-size: clamp(28px, 6vw, 34px);
        line-height: 1.34;
    }

    .section-header h2 {
        font-size: clamp(28px, 6vw, 34px);
    }
}

body.legal-modal-open {
    overflow: hidden;
}

@media (max-width: 480px) {
    :root {
        --header-height: 72px;
        --scroll-anchor-offset: 96px;
    }

    .hero {
        min-height: auto;
    }

    .hero-inner {
        padding: 12px 0 48px;
        width: min(97%, var(--container));
    }

    .hero-bg img {
        object-position: 96% center;
    }

    .hero-gradient {
        background: linear-gradient(
            to right,
            rgba(255, 255, 255, 1) 0%,
            rgba(255, 255, 255, 1) 38%,
            rgba(255, 255, 255, 0.98) 48%,
            rgba(255, 255, 255, 0.88) 58%,
            rgba(255, 255, 255, 0.58) 68%,
            rgba(255, 255, 255, 0.22) 78%,
            rgba(255, 255, 255, 0.04) 88%,
            rgba(255, 255, 255, 0) 94%
        );
    }

    .hero-content {
        max-width: min(380px, 97vw);
    }

    .hero-content p {
        max-width: min(268px, 68vw);
        padding: 10px 14px 10px 0;
        background: linear-gradient(
            90deg,
            rgba(255, 255, 255, 0.99) 0%,
            rgba(255, 255, 255, 0.96) 75%,
            rgba(255, 255, 255, 0.7) 90%,
            rgba(255, 255, 255, 0) 100%
        );
    }

    .hero-content p + p {
        text-shadow: none;
        margin-top: -6px;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .logo img {
        height: calc((var(--header-height) - 2px) * 0.75);
        max-width: calc(100vw - 96px);
    }

    .hero h1 {
        font-size: clamp(21px, 5.5vw, 24px);
        line-height: 1.3;
    }

    .btn-hero-wrap {
        display: block;
        text-align: center;
    }

    .btn-hero-wrap .btn-hero {
        width: 100%;
    }

    .btn-hero-hint {
        text-align: center;
    }

    .numbered-list .number {
        font-size: 28px;
        min-width: 36px;
    }

    .flow-box {
        padding: 22px 24px;
        min-height: 68px;
    }

    .flow-box--primary {
        padding: 26px 24px;
        min-height: 82px;
    }

    .flow-box-title {
        font-size: 14px;
    }

    .flow-box-title--light {
        font-size: 16px;
    }

    .flow-arrow {
        padding: 9px 0;
    }

    .flow-arrow svg {
        width: 20px;
        height: 30px;
    }

    .site-footer {
        padding: 56px 0 36px;
    }

    .footer-logo img {
        height: 53px;
    }

    .footer-right .btn-hero-wrap {
        width: 100%;
    }

    .footer-right .btn-hero-wrap .btn-hero {
        width: 100%;
        text-align: center;
    }

    .legal-modal {
        padding: 16px;
    }

    .legal-modal-dialog {
        padding: 32px 24px 28px;
    }

    .legal-modal-close {
        margin: -4px -4px 0 0;
    }
}