: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-gold-soft: rgba(180, 136, 47, 0.18);
    --gpo-shadow: 0 20px 50px rgba(76, 42, 18, 0.12);
    --gpo-font-title: "Noto Serif", "Palatino Linotype", "Book Antiqua", Georgia, serif;
    --gpo-font-body: "Noto Serif", Georgia, "Times New Roman", serif;
}

html {
    scroll-behavior: smooth;
}

body {
    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 * {
    box-sizing: border-box;
}

a {
    text-decoration: none;
}

.gpo-header {
    position: sticky;
    top: 0;
    z-index: 1050;
    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-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-header .navbar {
    padding: 0.85rem 0;
}

.gpo-brand-badge {
    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;
    flex: 0 0 auto;
}

.gpo-logo-text {
    display: flex;
    flex-direction: column;
    color: #f7e9c1;
    font-family: var(--gpo-font-title);
}

.gpo-logo-text strong {
    font-size: 1.48rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    line-height: 1.05;
    text-transform: uppercase;
}

.gpo-logo-text small {
    margin-top: 2px;
    color: rgba(243, 226, 185, 0.92);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.gpo-header .navbar-toggler {
    border-color: rgba(241, 212, 151, 0.35);
    background: rgba(255, 247, 223, 0.08);
}

.gpo-header .navbar-toggler:focus {
    box-shadow: none;
}

.gpo-header .navbar-toggler-icon {
    filter: invert(93%) sepia(12%) saturate(434%) hue-rotate(341deg) brightness(103%) contrast(92%);
}

.gpo-header .nav-link {
    color: rgba(246, 231, 188, 0.9);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    padding: 0.6rem 1rem;
}

.gpo-header .nav-link:hover,
.gpo-header .nav-link:focus {
    color: #fff3d5;
}

.btn-gpo,
.btn-outline-gpo,
.btn-gpo-primary,
.btn-gpo-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0.8rem 1.3rem;
    border-radius: 999px;
    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, box-shadow 0.28s ease;
}

.btn-gpo,
.btn-gpo-primary {
    border: 1px solid rgba(238, 210, 150, 0.42);
    background: linear-gradient(180deg, #a52d24, #7b1e1e);
    color: #fff3d6;
    box-shadow: 0 14px 26px rgba(66, 14, 14, 0.16);
}

.btn-gpo:hover,
.btn-gpo:focus,
.btn-gpo-primary:hover,
.btn-gpo-primary:focus {
    color: #fff8ea;
    transform: translateY(-1px);
    box-shadow: 0 18px 32px rgba(66, 14, 14, 0.22);
}

.btn-outline-gpo,
.btn-gpo-outline {
    color: #f6e7bc;
    border: 1px solid rgba(238, 210, 150, 0.42);
    background: rgba(255, 247, 223, 0.08);
}

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

.btn-gpo-outline {
    color: var(--gpo-accent-deep);
    border-color: rgba(143, 32, 32, 0.32);
    background: rgba(255, 249, 235, 0.96);
    box-shadow: 0 10px 22px rgba(76, 42, 18, 0.08);
}

.btn-gpo-outline:hover,
.btn-gpo-outline:focus {
    color: var(--gpo-accent-deep);
    border-color: rgba(143, 32, 32, 0.46);
    background: #fff6e4;
}

.btn-gpo-lg {
    min-height: 54px;
    padding: 0.95rem 1.6rem;
    font-size: 1rem;
}

.gpo-hero-shell,
.gpo-section,
.gpo-footer {
    position: relative;
}

.gpo-hero-shell {
    padding: 54px 0 28px;
}

.gpo-hero-frame,
.gpo-panel,
.gpo-motif-card,
.gpo-tree-panel,
.gpo-frame-panel,
.gpo-footer-main {
    position: relative;
    border: 1px solid rgba(123, 74, 42, 0.16);
    border-radius: 30px;
    background:
        linear-gradient(180deg, rgba(255, 249, 235, 0.98), rgba(244, 230, 199, 0.98)),
        url("/web/images/paper-texture.png");
    background-size: auto, 280px;
    box-shadow: var(--gpo-shadow);
    overflow: hidden;
}

.gpo-hero-frame::before,
.gpo-panel::before,
.gpo-motif-card::before,
.gpo-tree-panel::before,
.gpo-frame-panel::before,
.gpo-footer-main::before {
    content: "";
    position: absolute;
    inset: 12px;
    border: 1px solid rgba(143, 32, 32, 0.14);
    border-radius: 22px;
    pointer-events: none;
}

.gpo-hero-frame {
    padding: 62px 38px 42px;
}

.gpo-hero-frame > .row {
    position: relative;
    z-index: 1;
}

.gpo-hero-dragons {
    position: absolute;
    top: 10px;
    left: 24px;
    right: 24px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    pointer-events: none;
    z-index: 0;
}

.gpo-hero-dragon {
    width: 148px;
    height: 148px;
    object-fit: contain;
    opacity: 0.96;
    filter: drop-shadow(0 14px 20px rgba(86, 42, 14, 0.2));
}

.gpo-hero-dragon-left {
    transform: translate(-10px, -8px);
}

.gpo-hero-dragon-right {
    transform: translate(10px, -8px);
}

.gpo-kicker,
.gpo-section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin: 0;
    color: var(--gpo-accent);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.gpo-kicker::before,
.gpo-section-eyebrow::before {
    content: "";
    width: 34px;
    height: 1px;
    background: linear-gradient(90deg, rgba(143, 32, 32, 0.2), rgba(143, 32, 32, 0.8));
}

.gpo-hero-title,
.gpo-section-title,
.gpo-board-top strong,
.gpo-footer-brand {
    font-family: var(--gpo-font-title);
}

.gpo-hero-title {
    margin: 18px 0 0;
    color: var(--gpo-ink);
    font-size: clamp(2.6rem, 3.2vw, 3rem);
    line-height: 1.32;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.gpo-hero-title span {
    display: block;
    color: var(--gpo-accent);
    font-size: clamp(1.25rem, 1.9vw, 1.5rem);
    line-height: 1.45;
    margin-top: 8px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.gpo-hero-subtitle,
.gpo-section-desc,
.gpo-board-cell p,
.gpo-feature-list li,
.gpo-motif-card p,
.gpo-footer-desc,
.gpo-footer-bottom p {
    color: var(--gpo-ink-soft);
    font-size: 1rem;
    line-height: 1.9;
}

.gpo-hero-subtitle {
    max-width: 680px;
    margin: 14px 0 0;
    font-size: 1.04rem;
    line-height: 1.78;
}

.gpo-hero-lead {
    margin: 12px 0 0;
    color: var(--gpo-accent-deep);
    font-size: 1.06rem;
    line-height: 1.65;
    font-weight: 600;
}

.gpo-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 22px;
}

.gpo-hero-board {
    padding: 18px;
    border-radius: 24px;
    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;
    color: #faecc7;
    height: 100%;
    box-shadow: 0 16px 28px rgba(66, 14, 14, 0.14);
}

.gpo-board-top {
    display: grid;
    gap: 8px;
    padding: 6px 6px 18px;
}

.gpo-board-top span {
    color: #f3d9a3;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.gpo-board-top strong {
    color: #f7ead0;
    font-size: 1.1rem;
    line-height: 1.45;
}

.gpo-board-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

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

.gpo-board-cell h2 {
    margin: 0;
    color: #f4d488;
    font-family: var(--gpo-font-title);
    font-size: 0.85rem;
    letter-spacing: 0.12em;
    line-height: 1.3;
}

.gpo-board-cell strong {
    display: block;
    margin-top: 8px;
    color: #fff2d0;
    font-family: var(--gpo-font-title);
    font-size: 1.02rem;
    line-height: 1.45;
    font-weight: 700;
}

.gpo-board-cell p {
    margin: 8px 0 0;
    color: rgba(255, 244, 219, 0.92);
    font-size: 0.92rem;
    line-height: 1.68;
}

.gpo-section {
    padding: 30px 0;
}

.gpo-section-alt {
    padding-top: 6px;
}

.gpo-section-heading {
    max-width: 760px;
    margin: 0 auto 26px;
    text-align: center;
}

.gpo-section-title {
    margin: 16px 0 0;
    color: var(--gpo-ink);
    font-size: clamp(2rem, 2.6vw, 2.2rem);
    line-height: 1.38;
    font-weight: 700;
}

.gpo-title-left,
.gpo-desc-left {
    text-align: left;
}

.gpo-section-desc {
    margin: 16px auto 0;
    max-width: 700px;
    font-size: 0.98rem;
    line-height: 1.78;
}

.gpo-frame-panel,
.gpo-tree-panel {
    padding: 30px 28px;
    height: 100%;
}

.gpo-feature-list {
    list-style: none;
    margin: 20px 0 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.gpo-feature-list li {
    padding: 12px 14px;
    border-radius: 16px;
    border: 1px solid rgba(104, 61, 33, 0.12);
    background: rgba(255, 251, 241, 0.75);
    font-size: 0.95rem;
    line-height: 1.72;
}

.gpo-feature-list strong {
    color: var(--gpo-accent);
    letter-spacing: 0.06em;
}

.gpo-motif-card {
    padding: 24px 22px;
    height: 100%;
}

.gpo-card-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid rgba(143, 32, 32, 0.18);
    background: rgba(143, 32, 32, 0.08);
    color: var(--gpo-accent);
    font-size: 0.875rem;
    font-weight: 700;
}

.gpo-motif-card h3 {
    margin: 16px 0 10px;
    color: var(--gpo-accent-deep);
    font-family: var(--gpo-font-title);
    font-size: 1.15rem;
    line-height: 1.48;
}

.gpo-motif-card p {
    margin: 0;
    font-size: 0.94rem;
    line-height: 1.72;
}

.gpo-tree-badge {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid rgba(138, 59, 34, 0.2);
    background: rgba(255, 248, 231, 0.9);
    color: #7b2a1f;
    font-size: 0.83rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.gpo-tree-level {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 18px;
    flex-wrap: wrap;
}

.gpo-tree-level-top {
    margin-top: 26px;
}

.gpo-tree-node {
    position: relative;
    min-width: 180px;
    max-width: 220px;
    padding: 16px 16px 18px;
    border-radius: 18px;
    border: 1px solid rgba(104, 61, 33, 0.14);
    background: rgba(255, 251, 241, 0.92);
    text-align: center;
    box-shadow: 0 10px 24px rgba(76, 42, 18, 0.08);
}

.gpo-tree-node::before {
    content: "";
    position: absolute;
    inset: 8px;
    border: 1px solid rgba(180, 136, 47, 0.14);
    border-radius: 12px;
    pointer-events: none;
}

.gpo-tree-node-featured {
    min-width: 250px;
    background: linear-gradient(180deg, rgba(255, 249, 230, 0.95), rgba(244, 226, 179, 0.92));
}

.gpo-tree-node-small {
    min-width: 140px;
}

.gpo-tree-label {
    display: block;
    color: var(--gpo-accent);
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.gpo-tree-node strong {
    display: block;
    color: var(--gpo-ink);
    font-family: var(--gpo-font-title);
    font-size: 1.02rem;
    line-height: 1.52;
}

.gpo-tree-node small {
    display: block;
    margin-top: 8px;
    color: var(--gpo-ink-soft);
    font-size: 0.94rem;
    line-height: 1.68;
}

.gpo-frame-panel .gpo-section-title {
    font-size: clamp(2.25rem, 3vw, 2.55rem);
    line-height: 1.3;
}

.gpo-frame-panel .gpo-section-desc {
    font-size: 1rem;
    line-height: 1.8;
}

.gpo-footer {
    padding: 34px 0 24px;
}

.gpo-footer-main {
    padding: 26px 26px 18px;
}

.gpo-footer-brand {
    color: var(--gpo-accent-deep);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.gpo-footer-desc {
    max-width: 520px;
    margin-top: 10px;
    font-size: 0.96rem;
}

.gpo-footer-subbrand {
    margin: 6px 0 0;
    color: var(--gpo-accent);
    font-size: 0.86rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.gpo-footer-heading {
    color: var(--gpo-accent);
    font-family: var(--gpo-font-title);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 14px;
}

.gpo-footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 10px;
}

.gpo-footer-links a {
    color: var(--gpo-ink-soft);
    font-size: 0.94rem;
    font-weight: 600;
}

.gpo-footer-links a:hover,
.gpo-footer-links a:focus {
    color: var(--gpo-accent);
}

.gpo-footer-bottom {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid rgba(104, 61, 33, 0.12);
}

.gpo-footer-bottom p {
    margin: 0;
    font-size: 0.9rem;
}

.gpo-reveal {
    animation: gpoFadeUp 0.55s ease both;
}

@keyframes gpoFadeUp {
    from {
        opacity: 0;
        transform: translateY(18px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 991.98px) {
    .gpo-header .navbar-collapse {
        margin-top: 12px;
    }

    .gpo-hero-shell {
        padding-top: 36px;
    }

    .gpo-hero-frame,
    .gpo-frame-panel,
    .gpo-tree-panel,
    .gpo-footer-main {
        padding: 68px 20px 24px;
    }

    .gpo-hero-dragons {
        top: 10px;
        left: 16px;
        right: 16px;
    }

    .gpo-hero-dragon {
        width: 116px;
        height: 116px;
    }

    .gpo-board-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 767.98px) {
    .gpo-brand-badge {
        width: 54px;
        height: 54px;
        font-size: 0.82rem;
    }

    .gpo-logo-text strong {
        font-size: 1.2rem;
    }

    .gpo-logo-text small {
        font-size: 0.66rem;
    }

    .gpo-hero-title {
        font-size: 2.3rem;
    }

    .gpo-hero-title span {
        font-size: 1.12rem;
    }

    .gpo-hero-lead {
        font-size: 1rem;
    }

    .gpo-hero-frame,
    .gpo-panel,
    .gpo-motif-card,
    .gpo-tree-panel,
    .gpo-frame-panel,
    .gpo-footer-main {
        border-radius: 22px;
    }

    .gpo-hero-frame::before,
    .gpo-panel::before,
    .gpo-motif-card::before,
    .gpo-tree-panel::before,
    .gpo-frame-panel::before,
    .gpo-footer-main::before {
        inset: 8px;
        border-radius: 16px;
    }

    .gpo-hero-frame,
    .gpo-frame-panel,
    .gpo-tree-panel,
    .gpo-footer-main {
        padding: 58px 16px 18px;
    }

    .gpo-hero-dragons {
        top: 8px;
        left: 10px;
        right: 10px;
    }

    .gpo-hero-dragon {
        width: 82px;
        height: 82px;
        opacity: 0.9;
    }

    .gpo-board-grid {
        grid-template-columns: 1fr;
    }

    .gpo-hero-actions {
        flex-direction: column;
    }

    .btn-gpo-lg,
    .btn-gpo-primary,
    .btn-gpo-outline {
        width: 100%;
    }

    .gpo-tree-node,
    .gpo-tree-node-featured,
    .gpo-tree-node-small {
        min-width: 100%;
        max-width: none;
    }

    .gpo-section {
        padding: 22px 0;
    }

    .gpo-frame-panel .gpo-section-title,
    .gpo-section-title {
        font-size: 1.85rem;
    }
}