@font-face {
    font-family: "Open Sans";
    src: url("../fonts/OpenSans-Regular.ttf") format("truetype");
    font-style: normal;
    font-weight: 400;
    font-display: swap;
}

@font-face {
    font-family: "Open Sans";
    src: url("../fonts/OpenSans-Semibold.ttf") format("truetype");
    font-style: normal;
    font-weight: 600;
    font-display: swap;
}

:root {
    color-scheme: light dark;
    --page-background: #e1e1e1;
    --card-background: #ffffff;
    --field-background: #ffffff;
    --text: #141414;
    --muted: #607087;
    --border: #c8c8c8;
    --emerald: #00bc7d;
    --emerald-light: #00a875;
    --emerald-soft: rgba(0, 188, 125, 0.12);
    --danger: #dc2626;
    --danger-soft: rgba(220, 38, 38, 0.12);
    --warning: #d97706;
    --shadow: rgba(15, 23, 43, 0.22);
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    font-family: "Open Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--page-background);
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(circle at 50% -10%, var(--emerald-soft), transparent 38rem),
        var(--page-background);
}

button,
input {
    font: inherit;
}

.app-link-shell {
    display: grid;
    min-height: 100vh;
    place-items: center;
    padding: max(24px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
}

.app-link-card {
    width: min(100%, 470px);
    padding: clamp(24px, 6vw, 36px);
    overflow: hidden;
    background: var(--card-background);
    border-radius: 16px;
    box-shadow: 8px 10px 22px var(--shadow);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 28px;
    color: var(--text);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.brand-mark,
.field-icon,
.status-icon {
    display: inline-grid;
    flex: 0 0 auto;
    place-items: center;
    color: #ffffff;
    background: var(--emerald);
    box-shadow: 0 0 10px rgba(0, 212, 146, 0.48);
}

.brand-mark {
    width: 34px;
    height: 34px;
    border-radius: 11px;
    font-size: 18px;
}

.status-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 22px;
    border-radius: 50%;
}

.status-icon svg {
    width: 36px;
    height: 36px;
    stroke: currentColor;
}

.status-icon.error {
    background: var(--danger);
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.42);
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--emerald-light);
    font-size: 13px;
    font-weight: 600;
}

h1 {
    margin: 0;
    font-size: clamp(28px, 7vw, 32px);
    font-weight: 600;
    line-height: 1.2;
}

.subtitle {
    margin: 10px 0 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.65;
}

.centered {
    text-align: center;
}

.operation-form {
    display: grid;
    gap: 18px;
    margin-top: 28px;
}

.field-group {
    display: grid;
    gap: 7px;
}

.field-group label {
    font-size: 13px;
    font-weight: 600;
}

.field-shell {
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr);
    align-items: center;
    gap: 10px;
}

.field-icon {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    font-size: 16px;
}

.field-shell input {
    width: 100%;
    min-height: 50px;
    padding: 12px 14px;
    color: var(--text);
    background: var(--field-background);
    border: 1px solid var(--border);
    border-radius: 14px;
    outline: none;
    transition: border-color 140ms ease, box-shadow 140ms ease;
}

.field-shell input:focus {
    border-color: var(--emerald-light);
    box-shadow: 0 0 0 3px var(--emerald-soft);
}

.field-validation-error,
.validation-summary-errors {
    color: var(--danger);
    font-size: 13px;
    line-height: 1.45;
}

.validation-summary-valid {
    display: none;
}

.validation-summary-errors {
    padding: 12px 14px;
    background: var(--danger-soft);
    border: 1px solid rgba(239, 68, 68, 0.36);
    border-radius: 12px;
}

.validation-summary-errors ul {
    margin: 0;
    padding-left: 18px;
}

.primary-action {
    display: inline-flex;
    width: 100%;
    min-height: 56px;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 20px;
    color: #ffffff;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    background: var(--emerald);
    border: 0;
    border-radius: 14px;
    box-shadow: 0 0 10px rgba(0, 212, 146, 0.42);
    cursor: pointer;
    transition: filter 140ms ease, transform 140ms ease;
}

.primary-action:hover {
    filter: brightness(1.06);
}

.primary-action:active {
    transform: translateY(1px);
}

.primary-action:focus-visible {
    outline: 3px solid var(--emerald-soft);
    outline-offset: 3px;
}

.primary-action[disabled] {
    opacity: 0.5;
    cursor: wait;
}

.success-action {
    margin-top: 28px;
}

.app-launch-message {
    min-height: 21px;
    margin: 12px 0 0;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.55;
    text-align: center;
}

.invite-code {
    display: inline-flex;
    margin-top: 16px;
    padding: 7px 12px;
    color: var(--emerald-light);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.12em;
    background: var(--emerald-soft);
    border: 1px solid rgba(0, 188, 125, 0.32);
    border-radius: 999px;
}

.privacy-note {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.55;
}

.privacy-card {
    width: min(100%, 720px);
}

.privacy-content {
    display: grid;
    gap: 24px;
    margin-top: 30px;
}

.privacy-section {
    display: grid;
    gap: 10px;
}

.privacy-section h2 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    line-height: 1.35;
}

.privacy-section p,
.privacy-list {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.65;
}

.privacy-list {
    display: grid;
    gap: 8px;
    padding-left: 20px;
}

.privacy-highlight {
    padding: 18px;
    background: var(--emerald-soft);
    border: 1px solid rgba(0, 188, 125, 0.32);
    border-radius: 14px;
}

.privacy-highlight p {
    color: var(--text);
}

@media (prefers-color-scheme: dark) {
    :root {
        --page-background: #00281b;
        --card-background: #000000;
        --field-background: #0f172b;
        --text: #ffffff;
        --muted: #90a1b9;
        --border: rgba(0, 188, 125, 0.3);
        --emerald-light: #00d492;
        --shadow: rgba(0, 0, 0, 0.8);
    }
}

@media (max-width: 520px) {
    .app-link-shell {
        place-items: stretch;
        padding: 0;
    }

    .app-link-card {
        min-height: 100vh;
        padding-top: max(28px, env(safe-area-inset-top));
        padding-bottom: max(28px, env(safe-area-inset-bottom));
        border-radius: 0;
        box-shadow: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition: none !important;
    }
}