:root {
    --gpo-bg: #f2e3bf;
    --gpo-paper: #f6e8c6;
    --gpo-paper-soft: #fbf2de;
    --gpo-paper-deep: #ecd8aa;
    --gpo-line: rgba(104, 61, 33, 0.24);
    --gpo-ink: #2d1f16;
    --gpo-ink-soft: #4d3a2d;
    --gpo-accent: #8f2020;
    --gpo-accent-deep: #661515;
    --gpo-gold: #b4882f;
    --gpo-success: #355c3b;
    --gpo-warning: #8a5a14;
    --gpo-danger: #8a2323;
    --gpo-info: #645135;
    --gpo-shadow: 0 20px 50px rgba(76, 42, 18, 0.12);
    --gpo-font-title: "Palatino Linotype", "Book Antiqua", Georgia, serif;
    --gpo-font-body: "Noto Serif", Georgia, "Times New Roman", serif;
    --gpo-font-script: "Segoe Script", "Brush Script MT", cursive;
}

html {
    scroll-behavior: smooth;
}

body.gpo-auth-page {
    min-height: 100vh;
    margin: 0;
    color: var(--gpo-ink);
    font-family: var(--gpo-font-body);
    background:
        radial-gradient(circle at top, rgba(180, 136, 47, 0.12), transparent 24%),
        linear-gradient(180deg, rgba(255, 248, 227, 0.92), rgba(238, 219, 177, 0.92)),
        url("/web/images/paper-texture.png");
    background-size: auto, auto, 320px;
}

body.gpo-auth-page * {
    box-sizing: border-box;
}

body.gpo-auth-page a {
    text-decoration: none;
}

.gpo-auth-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: linear-gradient(180deg, rgba(79, 28, 19, 0.94), rgba(55, 17, 13, 0.94));
    box-shadow: 0 8px 28px rgba(32, 12, 8, 0.16);
}

.gpo-auth-header::before {
    content: "";
    display: block;
    height: 8px;
    background:
        linear-gradient(90deg, rgba(180, 136, 47, 0.2), rgba(180, 136, 47, 0.85), rgba(180, 136, 47, 0.2)),
        repeating-linear-gradient(
            90deg,
            transparent 0 18px,
            rgba(245, 231, 193, 0.18) 18px 22px,
            transparent 22px 40px
        );
}

.gpo-auth-header-inner {
    min-height: 92px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.gpo-auth-brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
}

.gpo-auth-brand-mark {
    width: 62px;
    height: 62px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: url("/favicon.svg") center/contain no-repeat;
    color: transparent;
    overflow: hidden;
    text-indent: -9999px;
}

.gpo-auth-brand-text {
    display: flex;
    flex-direction: column;
}

.gpo-auth-brand-text strong {
    color: #f7e9c1;
    font-family: var(--gpo-font-title);
    font-size: 1.35rem;
    line-height: 1.1;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.gpo-auth-brand-text small {
    color: rgba(243, 226, 185, 0.82);
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.gpo-auth-home-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0.8rem 1.3rem;
    border-radius: 999px;
    color: #f6e7bc;
    border: 1px solid rgba(238, 210, 150, 0.42);
    background: rgba(255, 247, 223, 0.08);
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    transition: background-color 0.28s ease, border-color 0.28s ease, transform 0.28s ease;
}

.gpo-auth-home-link:hover,
.gpo-auth-home-link:focus {
    color: #fff3d5;
    border-color: rgba(255, 230, 180, 0.7);
    background: rgba(255, 247, 223, 0.16);
    transform: translateY(-1px);
}

.gpo-auth-main {
    padding: 42px 0 56px;
}

.gpo-auth-shell {
    position: relative;
    overflow: hidden;
    border-radius: 30px;
    border: 1px solid var(--gpo-line);
    background:
        linear-gradient(180deg, rgba(255, 248, 229, 0.92), rgba(239, 220, 176, 0.92)),
        url("/web/images/hero-paper-bg.png");
    background-size: auto, 340px;
    box-shadow: var(--gpo-shadow);
}

.gpo-auth-shell::before {
    content: "";
    position: absolute;
    inset: 14px;
    border: 1px solid rgba(143, 32, 32, 0.16);
    border-radius: 22px;
    pointer-events: none;
}

.gpo-auth-ornament {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 12% 16%, rgba(180, 136, 47, 0.12), transparent 16%),
        radial-gradient(circle at 90% 82%, rgba(143, 32, 32, 0.12), transparent 18%);
    pointer-events: none;
}

.gpo-auth-shell > .row,
.gpo-auth-ceremony > *,
.gpo-auth-form-panel > * {
    position: relative;
    z-index: 1;
}

.gpo-auth-ceremony {
    height: 100%;
    padding: 42px 34px;
    color: #faecc7;
    background:
        linear-gradient(180deg, rgba(132, 31, 31, 0.94), rgba(90, 21, 21, 0.94)),
        url("/web/images/paper-texture.png");
    background-size: auto, 320px;
}

.gpo-auth-kicker,
.gpo-auth-card-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: 0.78rem;
    font-weight: 700;
}

.gpo-auth-kicker {
    color: #f3d9a3;
}

.gpo-auth-kicker::before,
.gpo-auth-card-kicker::before {
    content: "";
    width: 34px;
    height: 1px;
    background: linear-gradient(90deg, rgba(255, 232, 174, 0.2), rgba(255, 232, 174, 0.8));
}

.gpo-auth-title,
.gpo-auth-card h2 {
    margin: 18px 0 0;
    font-family: var(--gpo-font-title);
    line-height: 1.16;
}

.gpo-auth-title {
    font-size: clamp(2rem, 3vw, 3.2rem);
}

.gpo-auth-desc,
.gpo-auth-card-subtitle {
    margin: 20px 0 0;
    line-height: 1.85;
    font-size: 1.02rem;
}

.gpo-auth-desc {
    color: rgba(251, 239, 209, 0.88);
}

.gpo-auth-notes {
    display: grid;
    gap: 16px;
    margin-top: 28px;
}

.gpo-auth-note {
    padding: 18px 18px 16px;
    border-radius: 18px;
    border: 1px solid rgba(250, 231, 189, 0.12);
    background: rgba(255, 248, 229, 0.07);
}

.gpo-auth-note h2 {
    margin: 0;
    color: #f4d488;
    font-family: var(--gpo-font-title);
    font-size: 1.05rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.gpo-auth-note p {
    margin: 10px 0 0;
    color: rgba(255, 244, 219, 0.92);
    font-size: 0.96rem;
    line-height: 1.75;
}

.gpo-auth-form-panel {
    height: 100%;
    padding: 34px;
}

.gpo-auth-card {
    position: relative;
    padding: 32px;
    border-radius: 24px;
    border: 1px solid rgba(104, 61, 33, 0.18);
    background:
        linear-gradient(180deg, rgba(255, 250, 238, 0.92), rgba(244, 229, 193, 0.96)),
        url("/web/images/paper-texture.png");
    background-size: auto, 320px;
    box-shadow: 0 14px 34px rgba(72, 38, 18, 0.08);
}

.gpo-auth-card::before {
    content: "";
    position: absolute;
    inset: 12px;
    border: 1px solid rgba(143, 32, 32, 0.14);
    border-radius: 18px;
    pointer-events: none;
}

.gpo-auth-card > * {
    position: relative;
    z-index: 1;
}

.gpo-auth-card-kicker {
    color: var(--gpo-accent);
}

.gpo-auth-card-subtitle {
    color: var(--gpo-ink-soft);
}

.gpo-auth-form {
    margin-top: 24px;
}

.gpo-field + .gpo-field {
    margin-top: 18px;
}

.gpo-form-label {
    display: inline-block;
    margin-bottom: 8px;
    color: var(--gpo-ink);
    font-size: 0.92rem;
    font-weight: 700;
}

.gpo-form-control {
    min-height: 54px;
    border-radius: 16px;
    border: 1px solid rgba(104, 61, 33, 0.2);
    background: rgba(255, 251, 241, 0.9);
    color: var(--gpo-ink);
    font-size: 0.98rem;
    padding: 0.8rem 0.95rem;
    box-shadow: none;
}

.gpo-form-control::placeholder {
    color: #8b7964;
}

.gpo-form-control:focus {
    border-color: rgba(143, 32, 32, 0.52);
    background: #fffdfa;
    box-shadow: 0 0 0 4px rgba(143, 32, 32, 0.08);
}

.gpo-auth-row {
    margin-top: 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}

.gpo-check {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--gpo-ink-soft);
    font-size: 0.92rem;
}

.gpo-check input {
    width: 18px;
    height: 18px;
    accent-color: var(--gpo-accent);
}

.gpo-check-block {
    margin-top: 20px;
    align-items: flex-start;
}

.gpo-link {
    color: var(--gpo-accent);
    font-weight: 700;
}

.gpo-link:hover,
.gpo-link:focus {
    color: var(--gpo-accent-deep);
    text-decoration: underline;
}

.gpo-link-strong {
    font-size: 1rem;
}

.gpo-auth-button {
    width: 100%;
    min-height: 56px;
    margin-top: 24px;
    border: 0;
    border-radius: 999px;
    background: linear-gradient(180deg, #a52d24, #7b1e1e);
    color: #fff3d6;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    box-shadow: 0 14px 26px rgba(66, 14, 14, 0.22);
    transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.gpo-auth-button:hover,
.gpo-auth-button:focus {
    color: #fff8ea;
    transform: translateY(-2px);
    box-shadow: 0 18px 32px rgba(66, 14, 14, 0.28);
}

.gpo-auth-bottom {
    margin-top: 22px;
    padding-top: 18px;
    border-top: 1px solid rgba(104, 61, 33, 0.12);
    text-align: center;
}

.gpo-auth-bottom p {
    margin: 0;
    color: var(--gpo-ink-soft);
    font-size: 0.96rem;
}

.gpo-auth-bottom a {
    display: inline-block;
    margin-top: 8px;
}

.gpo-alert {
    margin-top: 18px;
    padding: 0.9rem 1rem;
    border-radius: 16px;
    border: 1px solid transparent;
    font-size: 0.95rem;
    line-height: 1.7;
}

.gpo-alert-danger,
.gpo-alert-error {
    color: #6f1616;
    background: rgba(143, 32, 32, 0.08);
    border-color: rgba(143, 32, 32, 0.18);
}

.gpo-alert-warning {
    color: #7b5317;
    background: rgba(180, 136, 47, 0.12);
    border-color: rgba(180, 136, 47, 0.22);
}

.gpo-alert-info {
    color: #5f4a2d;
    background: rgba(135, 101, 53, 0.1);
    border-color: rgba(135, 101, 53, 0.2);
}

.gpo-alert-success {
    color: #2f5635;
    background: rgba(53, 92, 59, 0.1);
    border-color: rgba(53, 92, 59, 0.2);
}

.gpo-auth-footer {
    padding: 0 0 28px;
}

.gpo-auth-footer p {
    margin: 0;
    text-align: center;
    color: #6b573f;
    font-size: 0.9rem;
}

@media (max-width: 991.98px) {
    .gpo-auth-main {
        padding-top: 28px;
    }

    .gpo-auth-ceremony,
    .gpo-auth-form-panel {
        padding: 24px;
    }
}

@media (max-width: 767.98px) {
    .gpo-auth-header-inner {
        min-height: auto;
        padding-top: 14px;
        padding-bottom: 14px;
        flex-direction: column;
        align-items: flex-start;
    }

    .gpo-auth-brand-mark {
        width: 50px;
        height: 50px;
        font-size: 0.88rem;
    }

    .gpo-auth-brand-text strong {
        font-size: 1.08rem;
    }

    .gpo-auth-brand-text small {
        font-size: 0.67rem;
        letter-spacing: 0.11em;
    }

    .gpo-auth-shell {
        border-radius: 22px;
    }

    .gpo-auth-ceremony,
    .gpo-auth-form-panel,
    .gpo-auth-card {
        padding: 20px;
    }

    .gpo-auth-title {
        font-size: 2rem;
    }

    .gpo-auth-row {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .gpo-auth-home-link,
    .gpo-auth-button {
        transition: none;
    }
}