/* styles.css - GTI NuSeis landing. Tokens live in tokens.css. */
@layer reset, base, layout, components, responsive;

@layer reset {
    *, *::before, *::after { box-sizing: border-box; }
    :where(html, body, h1, h2, p, fieldset) { margin: 0; }
    :where(button, input) { font: inherit; }
    :where(button, label, a) { -webkit-tap-highlight-color: transparent; }
    :where(button) { cursor: pointer; }
    :where(a) { color: inherit; }
}

@layer base {
    html {
        min-block-size: 100%;
        color-scheme: light;
        background: var(--surface-2);
        text-rendering: optimizeLegibility;
    }
    body {
        min-block-size: 100dvh;
        color: var(--ink);
        background:
            radial-gradient(circle at 8% 12%, color-mix(in oklch, var(--orange) 10%, transparent), transparent 28rem),
            radial-gradient(circle at 92% 85%, color-mix(in oklch, var(--blue) 9%, transparent), transparent 32rem),
            var(--surface-2);
        font-family: Inter, ui-sans-serif, system-ui, -apple-system,
            BlinkMacSystemFont, "Segoe UI", sans-serif;
        line-height: 1.5;
    }
    :focus-visible { outline: 0; box-shadow: var(--focus); }
    ::selection { color: white; background: var(--blue); }
}

@layer layout {
    .app {
        min-block-size: 100dvh;
        display: grid;
        grid-template-rows: 1fr auto;
    }
    .app > main {
        min-block-size: 0;
        display: grid;
        place-items: center;
        padding: clamp(.75rem, 3vw, 2rem);
    }
    .portal {
        position: relative;
        isolation: isolate;
        inline-size: min(100%, var(--content-width));
        min-block-size: min(39rem, calc(100dvh - 7rem));
        display: grid;
        grid-template-columns: minmax(0, 1.08fr) minmax(23rem, .92fr);
        overflow: clip;
        border: 1px solid color-mix(in oklch, var(--line) 88%, transparent);
        border-radius: var(--radius-lg);
        background: var(--surface);
        box-shadow: var(--shadow);
    }
    .portal__bar {
        position: absolute;
        z-index: 5;
        inset-block-start: 1rem;
        inset-inline-end: 1rem;
    }
    .page-footer {
        inline-size: min(calc(100% - 2rem), var(--content-width));
        margin-inline: auto;
        padding-block: .8rem 1rem;
        display: flex;
        justify-content: space-between;
        gap: 1rem;
        color: var(--muted);
        font-size: .72rem;
    }
}

@layer components {
    .contact-trigger,
    .dialog-close,
    .secondary-action {
        border: 1px solid var(--line);
        color: var(--ink);
        background: color-mix(in oklch, white 92%, transparent);
        box-shadow: 0 .25rem 1rem rgb(20 18 15 / .05);
        transition:
            border-color 160ms ease, color 160ms ease,
            background-color 160ms ease, translate 160ms ease;
        &:hover {
            border-color: var(--orange);
            color: var(--orange-strong);
            background: white;
        }
        &:active { translate: 0 1px; }
    }
    .contact-trigger {
        min-block-size: 2.4rem;
        padding-inline: .9rem;
        border-radius: 999px;
        font-size: .74rem;
        font-weight: 800;
        backdrop-filter: blur(12px);
    }
    .brand-panel {
        position: relative;
        isolation: isolate;
        min-inline-size: 0;
        overflow: clip;
        padding: clamp(1.5rem, 4vw, 3.25rem);
        display: grid;
        grid-template-rows: auto 1fr auto;
        gap: 1.5rem;
        color: var(--ink);
        background:
            linear-gradient(145deg, color-mix(in oklch, white 8%, transparent), transparent 42%),
            var(--orange);
        &::before {
            content: "";
            position: absolute;
            z-index: -2;
            inline-size: 30rem;
            aspect-ratio: 1;
            inset-inline-end: -12rem;
            inset-block-end: -13rem;
            border-radius: 35% 65% 58% 42% / 40% 34% 66% 60%;
            background: var(--blue);
            rotate: 12deg;
        }
        &::after {
            content: "";
            position: absolute;
            z-index: -1;
            inset: 0;
            opacity: .24;
            background-image:
                linear-gradient(rgb(255 255 255 / .18) 1px, transparent 1px),
                linear-gradient(90deg, rgb(255 255 255 / .18) 1px, transparent 1px);
            background-size: 2.5rem 2.5rem;
            mask-image: linear-gradient(to bottom right, black, transparent 70%);
            pointer-events: none;
        }
    }
    .brand {
        display: inline-flex;
        align-items: baseline;
        gap: .35rem;
        inline-size: max-content;
        font-size: 1.35rem;
        font-weight: 950;
        letter-spacing: -.055em;
        .brand__gti { color: white; }
        .brand__nuseis { color: var(--blue); }
    }
    .hero-copy { align-self: center; max-inline-size: 38rem; }
    .eyebrow {
        margin-block-end: .9rem;
        color: var(--blue);
        font-size: .7rem;
        font-weight: 900;
        letter-spacing: .15em;
        text-transform: uppercase;
    }
    .hero-copy h1 {
        max-inline-size: 8.5ch;
        font-size: clamp(3.7rem, 6.5vw, 6.5rem);
        line-height: .82;
        letter-spacing: -.075em;
        text-wrap: balance;
        span { display: block; color: white; }
    }
    .hero-copy > p {
        max-inline-size: 43ch;
        margin-block-start: 1.25rem;
        color: color-mix(in oklch, var(--ink) 80%, var(--orange));
        font-size: .98rem;
        text-wrap: pretty;
    }
    .signal-wrap { max-inline-size: 34rem; margin-block-start: 1.8rem; }
    .signal-label {
        margin-block-end: .4rem;
        color: color-mix(in oklch, var(--ink) 70%, var(--orange));
        font: 850 .62rem/1 ui-monospace, "SFMono-Regular", Consolas, monospace;
        letter-spacing: .09em;
        text-transform: uppercase;
    }
    .signal {
        display: block;
        inline-size: 100%;
        block-size: 3.8rem;
        path {
            fill: none;
            stroke: var(--blue);
            stroke-width: 3.2;
            vector-effect: non-scaling-stroke;
        }
        .signal__baseline {
            stroke: color-mix(in oklch, var(--blue) 38%, transparent);
            stroke-width: 1;
        }
    }
    .brand-meta {
        display: flex;
        align-items: end;
        justify-content: space-between;
        gap: 1.25rem;
    }
    .serial-chip {
        display: inline-grid;
        grid-template-columns: auto auto;
        align-items: center;
        gap: .7rem;
        padding: .6rem .75rem;
        border: 1px solid rgb(20 18 15 / .18);
        border-radius: var(--radius-sm);
        background: rgb(255 255 255 / .22);
        backdrop-filter: blur(10px);
        span {
            color: color-mix(in oklch, var(--ink) 74%, var(--orange));
            font-size: .61rem;
            font-weight: 900;
            letter-spacing: .09em;
            text-transform: uppercase;
        }
        code {
            color: var(--blue);
            font: 900 .8rem/1 ui-monospace, "SFMono-Regular", Consolas, monospace;
        }
    }
    .brand-footnote {
        max-inline-size: 14rem;
        color: color-mix(in oklch, var(--ink) 76%, var(--orange));
        font-size: .68rem;
        font-weight: 700;
        text-align: end;
    }
    .auth-panel {
        min-inline-size: 0;
        display: grid;
        place-items: center;
        padding: clamp(1.5rem, 4vw, 3.5rem);
        background:
            linear-gradient(to bottom, rgb(255 255 255 / .9), rgb(255 255 255 / .98)),
            var(--surface);
    }
    .auth-form {
        inline-size: min(100%, 25rem);
        display: grid;
        gap: .8rem;
    }
    .auth-heading {
        margin-block-end: .35rem;
        small {
            color: var(--orange-strong);
            font-size: .66rem;
            font-weight: 900;
            letter-spacing: .12em;
            text-transform: uppercase;
        }
        h2 {
            margin-block: .25rem .35rem;
            font-size: clamp(2rem, 3vw, 2.6rem);
            line-height: .95;
            letter-spacing: -.05em;
        }
        p { color: var(--muted); font-size: .8rem; }
    }
    .role-switcher {
        min-inline-size: 0;
        padding: .25rem;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: .25rem;
        border: 1px solid var(--line);
        border-radius: .75rem;
        background: var(--surface-2);
        input {
            position: absolute;
            inline-size: 1px;
            block-size: 1px;
            overflow: hidden;
            clip-path: inset(50%);
            white-space: nowrap;
        }
        label {
            min-block-size: 2.45rem;
            display: grid;
            place-items: center;
            border-radius: .55rem;
            color: var(--muted);
            font-size: .74rem;
            font-weight: 850;
            cursor: pointer;
            transition:
                color 160ms ease, background-color 160ms ease,
                box-shadow 160ms ease;
        }
        input:focus-visible + label { box-shadow: var(--focus); }
        #role-employee:checked + label {
            color: white;
            background: var(--blue);
            box-shadow: 0 .3rem 1rem color-mix(in oklch, var(--blue) 20%, transparent);
        }
        #role-vendor:checked + label {
            color: var(--ink);
            background: var(--orange);
            box-shadow: 0 .3rem 1rem color-mix(in oklch, var(--orange) 24%, transparent);
        }
    }
    .role-note {
        padding: .55rem .7rem;
        border-inline-start: 3px solid var(--blue);
        color: var(--text);
        background: var(--surface-2);
        border-radius: 0 .55rem .55rem 0;
        font-size: .7rem;
        .vendor-copy { display: none; }
    }
    /* real auth entry: one identity provider, role only changes copy */
    .submit-button {
        min-block-size: 2.8rem;
        display: grid;
        place-items: center;
        border: 0;
        border-radius: .62rem;
        color: white;
        background: var(--blue);
        font-weight: 900;
        text-decoration: none;
        box-shadow: 0 .45rem 1.2rem color-mix(in oklch, var(--blue) 18%, transparent);
        transition:
            background-color 160ms ease, translate 160ms ease,
            box-shadow 160ms ease;
        .vendor-copy { display: none; }
        &:hover { background: var(--blue-strong); }
        &:active {
            translate: 0 1px;
            box-shadow: 0 .25rem .7rem color-mix(in oklch, var(--blue) 16%, transparent);
        }
    }
    .auth-form:has(#role-vendor:checked) {
        .role-note {
            border-inline-start-color: var(--orange);
            .employee-copy { display: none; }
            .vendor-copy { display: inline; }
        }
        .submit-button {
            color: var(--ink);
            background: var(--orange);
            .employee-copy { display: none; }
            .vendor-copy { display: inline; }
            &:hover { background: var(--orange-strong); }
        }
        .vendor-help { display: block; }
        .sso-hint .employee-copy { display: none; }
        .sso-hint .vendor-copy { display: inline; }
    }
    .sso-hint {
        color: var(--muted);
        font-size: .69rem;
        text-align: center;
        .vendor-copy { display: none; }
    }
    .vendor-help {
        display: none;
        color: var(--muted);
        font-size: .69rem;
    }
    .local-hint {
        margin-block-start: .1rem;
        padding: .55rem .7rem;
        border: 1px dashed var(--line-strong);
        border-radius: .55rem;
        color: var(--muted);
        font-size: .66rem;
        code {
            color: var(--blue);
            font: 800 .66rem/1 ui-monospace, "SFMono-Regular", Consolas, monospace;
        }
    }
    .security-note {
        margin-block-start: .1rem;
        padding-block-start: .7rem;
        border-block-start: 1px solid var(--line);
        color: color-mix(in oklch, var(--muted) 72%, white);
        font-size: .64rem;
        text-wrap: pretty;
    }
    .contact-dialog {
        inline-size: min(52rem, calc(100% - 2rem));
        max-block-size: calc(100dvh - 2rem);
        padding: 0;
        overflow: auto;
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
        color: var(--ink);
        background: white;
        box-shadow: 0 2rem 7rem rgb(0 0 0 / .25);
        &::backdrop {
            background: rgb(18 16 12 / .48);
            backdrop-filter: blur(8px);
        }
    }
    .contact-card { display: grid; grid-template-columns: .85fr 1.15fr; }
    .contact-info { padding: 1.5rem; }
    .contact-head {
        margin-block-end: 1rem;
        display: flex;
        align-items: start;
        justify-content: space-between;
        gap: 1rem;
        small {
            color: var(--orange-strong);
            font-size: .65rem;
            font-weight: 900;
            letter-spacing: .11em;
            text-transform: uppercase;
        }
        h2 {
            margin-block-start: .2rem;
            font-size: 1.4rem;
            line-height: 1.05;
            letter-spacing: -.035em;
        }
    }
    .dialog-close {
        min-inline-size: 2.3rem;
        block-size: 2.3rem;
        border-radius: .55rem;
        font-size: 1rem;
        font-weight: 900;
    }
    .contact-info address { font-style: normal; }
    .contact-address {
        margin-block-end: 1rem;
        a {
            color: var(--text);
            text-decoration: none;
            &:hover { color: var(--orange-strong); }
        }
    }
    .contact-links {
        display: grid;
        gap: .45rem;
        a {
            inline-size: max-content;
            color: var(--blue);
            font-size: .8rem;
            font-weight: 800;
            text-decoration: none;
            text-underline-offset: .2em;
            &:hover { color: var(--orange-strong); text-decoration: underline; }
        }
    }
    .contact-map {
        min-block-size: 21rem;
        background: var(--surface-2);
        iframe {
            display: block;
            inline-size: 100%;
            block-size: 100%;
            min-block-size: 21rem;
            border: 0;
        }
    }
    .sr-only {
        position: absolute;
        inline-size: 1px;
        block-size: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }
}

@layer responsive {
    @media (max-width: 48rem) {
        .app { grid-template-rows: 1fr; }
        .app > main { align-items: start; padding: .6rem; }
        .portal {
            min-block-size: calc(100dvh - 1.2rem);
            grid-template-columns: 1fr;
            grid-template-rows: auto 1fr;
            border-radius: 1rem;
        }
        .brand-panel {
            min-block-size: 19rem;
            padding: 1.15rem;
            gap: .8rem;
            &::before {
                inline-size: 22rem;
                inset-inline-end: -12rem;
                inset-block-end: -12rem;
            }
        }
        .hero-copy { align-self: start; padding-block-start: .5rem; }
        .hero-copy h1 { max-inline-size: none; font-size: clamp(2.75rem, 12vw, 4.2rem); }
        .hero-copy > p { max-inline-size: 48ch; margin-block-start: .7rem; font-size: .8rem; }
        .signal-wrap, .brand-meta { display: none; }
        .auth-panel { padding: 1rem; }
        .portal__bar { inset-block-start: .85rem; inset-inline-end: .85rem; }
        .page-footer { display: none; }
        .contact-card { grid-template-columns: 1fr; }
        .contact-map, .contact-map iframe { min-block-size: 14rem; }
    }
    @media (max-height: 42rem) and (min-width: 48.01rem) {
        .app > main { padding-block: .75rem; }
        .portal { min-block-size: calc(100dvh - 4.5rem); }
        .brand-panel, .auth-panel { padding-block: 1.25rem; }
        .hero-copy h1 { font-size: clamp(3.2rem, 5vw, 4.8rem); }
        .signal-wrap { margin-block-start: .8rem; }
        .brand-footnote, .security-note { display: none; }
    }
    @media (prefers-reduced-motion: reduce) {
        *, *::before, *::after {
            scroll-behavior: auto !important;
            transition-duration: .01ms !important;
            animation-duration: .01ms !important;
            animation-iteration-count: 1 !important;
        }
    }
}