body {
    min-height: 100vh;
    background: #f8fafc;
}

.guide-page {
    color: var(--dark);
}

.guide-hero {
    padding: 72px 0 56px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 1), rgba(248, 250, 252, 0.96));
    border-bottom: 1px solid var(--border);
}

.guide-hero-grid,
.instruction-grid,
.final-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(340px, 520px);
    gap: 48px;
    align-items: center;
}

.guide-kicker,
.step-label {
    display: inline-flex;
    margin-bottom: 16px;
    padding: 7px 12px;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.guide-hero h1 {
    max-width: 760px;
    margin-bottom: 18px;
    font-size: clamp(36px, 5vw, 58px);
    line-height: 1.06;
}

.guide-hero p,
.guide-final p {
    max-width: 720px;
    color: var(--text);
    font-size: 18px;
}

.guide-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 30px;
}

.guide-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 12px 18px;
    border-radius: 999px;
    font-weight: 800;
    text-decoration: none;
    border: 1px solid transparent;
}

.guide-button-primary {
    background: var(--primary);
    color: #fff;
}

.guide-button-secondary {
    background: #fff;
    color: var(--dark);
    border-color: var(--border);
}

.guide-summary {
    padding: 28px;
    border-radius: 18px;
    background: #fff;
    border: 1px solid rgba(37, 99, 235, 0.12);
    box-shadow: var(--shadow-xl);
}

.guide-summary h2 {
    margin-bottom: 16px;
    font-size: 24px;
}

.guide-summary ul,
.final-checklist {
    display: grid;
    gap: 12px;
    list-style: none;
}

.guide-summary li,
.final-checklist li {
    position: relative;
    padding-left: 26px;
    color: var(--text);
}

.guide-summary li::before,
.final-checklist li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 900;
}

.guide-toc {
    padding: 38px 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
}

.guide-toc h2 {
    margin-bottom: 18px;
    font-size: 26px;
}

.guide-toc-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.guide-toc-grid a {
    display: flex;
    align-items: center;
    min-height: 58px;
    padding: 14px 16px;
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.03);
    color: var(--dark);
    text-decoration: none;
    font-weight: 700;
    border: 1px solid rgba(15, 23, 42, 0.08);
}

.guide-toc-grid a:hover {
    color: var(--primary-dark);
    border-color: rgba(37, 99, 235, 0.22);
    background: rgba(37, 99, 235, 0.06);
}

.instruction-step {
    padding: 78px 0;
    border-bottom: 1px solid var(--border);
    background: #fff;
}

.instruction-step-alt {
    background: #f8fafc;
}

.instruction-step-alt .instruction-grid {
    grid-template-columns: minmax(340px, 520px) minmax(0, 1fr);
}

.instruction-copy h2 {
    margin-bottom: 18px;
    font-size: clamp(28px, 4vw, 40px);
    line-height: 1.12;
}

.instruction-copy-wide {
    max-width: 860px;
    margin-bottom: 28px;
}

.example-lead {
    color: var(--text);
    font-size: 17px;
}

.step-actions {
    display: grid;
    gap: 12px;
    margin: 0 0 22px 22px;
    color: var(--text);
    font-size: 16px;
}

.step-actions li::marker {
    color: var(--primary);
    font-weight: 900;
}

.hint-box,
.done-box {
    margin-top: 14px;
    padding: 16px 18px;
    border-radius: 8px;
    line-height: 1.6;
}

.hint-box {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.22);
    color: #6b4b08;
}

.done-box {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.22);
    color: #065f46;
}

.screen-card {
    position: relative;
    overflow: hidden;
    min-height: 360px;
    border-radius: 10px;
    background: #fff;
    border: 1px solid rgba(37, 99, 235, 0.14);
    box-shadow: 0 28px 70px -44px rgba(15, 23, 42, 0.55);
}

.screen-image {
    display: block;
    width: 100%;
    min-height: 360px;
    object-fit: cover;
}

.screen-pin {
    position: absolute;
    right: 18px;
    max-width: 240px;
    padding: 10px 12px;
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.9);
    color: #fff;
    font-size: 13px;
    font-weight: 800;
    box-shadow: 0 18px 28px -18px rgba(15, 23, 42, 0.6);
}

.screen-pin-top {
    top: 18px;
}

.screen-pin-middle {
    top: 48%;
}

.screen-pin-bottom {
    bottom: 18px;
}

.screen-mock {
    padding: 24px;
}

.mock-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}

.mock-toolbar span,
.mock-modal h3 {
    font-size: 24px;
    font-weight: 800;
}

.mock-toolbar button,
.mock-modal button {
    padding: 11px 14px;
    border: 0;
    border-radius: 8px;
    background: var(--primary);
    color: #fff;
    font-weight: 800;
}

.mock-project-list,
.tool-choice {
    display: grid;
    gap: 14px;
}

.mock-project-card,
.tool-option,
.mock-modal {
    padding: 18px;
    border-radius: 8px;
    background: #f8fafc;
    border: 1px solid var(--border);
}

.mock-chip {
    display: inline-flex;
    margin-bottom: 10px;
    padding: 5px 9px;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 800;
}

.mock-project-card h3,
.tool-option strong {
    display: block;
    margin-bottom: 6px;
}

.mock-project-card p,
.tool-option span {
    color: var(--text);
}

.mock-modal {
    display: grid;
    gap: 12px;
}

.mock-modal label {
    font-size: 13px;
    font-weight: 800;
    color: var(--dark);
}

.mock-input,
.mock-select {
    padding: 13px 14px;
    border-radius: 8px;
    background: #fff;
    border: 1px solid var(--border);
    color: var(--text);
}

.tool-option.active {
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.3);
}

.mock-textarea {
    min-height: 76px;
    padding: 13px 14px;
    border-radius: 8px;
    background: #fff;
    border: 1px solid var(--border);
    color: var(--text);
}

.okr-example-section {
    background: #fff;
}

.okr-example-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.okr-example-card {
    padding: 20px;
    border-radius: 8px;
    background: #f8fafc;
    border: 1px solid var(--border);
}

.okr-example-card h3 {
    margin-bottom: 10px;
    font-size: 18px;
    line-height: 1.35;
}

.okr-example-card p {
    color: var(--text);
    font-size: 14px;
}

.example-stage {
    display: inline-flex;
    margin-bottom: 12px;
    padding: 5px 9px;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 800;
}

.formula-box {
    margin-top: 22px;
    padding: 24px;
    border-radius: 8px;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.18);
}

.formula-box h3 {
    margin-bottom: 12px;
}

.formula-box p {
    margin-top: 8px;
    color: var(--text);
}

.example-table {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fff;
}

.example-table > div {
    padding: 16px 18px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

.example-table > div:nth-child(2n + 1) {
    border-right: 1px solid var(--border);
}

.example-table-head {
    background: #f1f5f9;
    color: var(--dark) !important;
    font-weight: 800;
}

.hint-box-wide {
    max-width: none;
}

.guide-final {
    padding: 76px 0;
    background: #fff;
}

.final-grid {
    align-items: start;
}

.guide-final h2 {
    margin-bottom: 14px;
    font-size: clamp(30px, 4vw, 44px);
    line-height: 1.12;
}

.final-checklist {
    padding: 28px;
    border-radius: 10px;
    background: #f8fafc;
    border: 1px solid var(--border);
}

@media (max-width: 980px) {
    .guide-hero-grid,
    .instruction-grid,
    .instruction-step-alt .instruction-grid,
    .final-grid {
        grid-template-columns: 1fr;
    }

    .guide-toc-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .okr-example-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .nav-menu {
        display: none;
    }

    .guide-hero,
    .instruction-step,
    .guide-final {
        padding: 48px 0;
    }

    .guide-toc-grid {
        grid-template-columns: 1fr;
    }

    .okr-example-grid,
    .example-table {
        grid-template-columns: 1fr;
    }

    .example-table > div:nth-child(2n + 1) {
        border-right: 0;
    }

    .screen-card {
        min-height: 280px;
    }

    .screen-image {
        min-height: 280px;
    }

    .screen-pin {
        left: 14px;
        right: 14px;
        max-width: none;
    }
}