body {
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(255, 70, 85, 0.14), transparent 28%),
        linear-gradient(135deg, #131722, #0f172a);
}

.planner-page {
    padding: clamp(24px, 4vw, 50px) clamp(16px, 3vw, 20px) 70px;
}

.planner-shell {
    width: 100%;
    max-width: 1040px;
    margin: 0 auto;
}

.planner-card {
    padding: clamp(24px, 4vw, 42px);
    border-radius: 24px;
    background: linear-gradient(180deg, #ffffff, #f8fafc);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.28);
}

.planner-header {
    max-width: 760px;
    margin-bottom: 30px;
}

.planner-eyebrow {
    margin-bottom: 12px;
    color: #ff4655;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.planner-header h1,
.metric-card strong {
    font-family: var(--font-display);
}

.planner-header h1 {
    margin-bottom: 10px;
    color: #0f172a;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.planner-header p {
    color: #475569;
    line-height: 1.7;
}

.planner-form {
    display: grid;
    gap: 20px;
}

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

.field-group label {
    display: block;
    margin-bottom: 8px;
    color: #334155;
    font-size: 0.9rem;
    font-weight: 700;
}

.field-group input,
.field-group select {
    width: 100%;
    min-height: 48px;
    padding: 12px;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    background: #f8fafc;
    color: #0f172a;
    font: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field-group input:focus,
.field-group select:focus {
    outline: none;
    border-color: #ff4655;
    box-shadow: 0 0 0 3px rgba(255, 70, 85, 0.12);
}

.planner-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.planner-button,
.back-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 18px;
    border-radius: 12px;
    border: none;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.planner-button {
    background: #ff4655;
    color: #ffffff;
}

.planner-button:hover,
.back-link:hover {
    transform: translateY(-1px);
}

.planner-button:hover {
    background: #e03b49;
}

.back-link {
    background: #e2e8f0;
    color: #0f172a;
}

.back-link:hover {
    background: #cbd5e1;
}

.planner-result {
    margin-top: 30px;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.metric-card {
    padding: 18px;
    border-radius: 16px;
    background: #0f172a;
    color: #e2e8f0;
}

.metric-card span {
    display: block;
    margin-bottom: 8px;
    color: #94a3b8;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.metric-card strong {
    display: block;
    color: #ffffff;
    font-size: 2.1rem;
    line-height: 1;
}

.metric-card p {
    margin-top: 8px;
    color: #cbd5e1;
    line-height: 1.6;
}

.plan-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 0.9fr);
    gap: 16px;
    margin-top: 16px;
}

.plan-panel {
    padding: 22px;
    border: 1px solid #dbe2ea;
    border-radius: 18px;
    background: #ffffff;
}

.plan-panel h2 {
    margin-bottom: 14px;
    color: #334155;
    font-size: 14px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.plan-list,
.checkpoint-list {
    display: grid;
    gap: 12px;
}

.plan-item,
.checkpoint-item {
    padding: 14px;
    border-radius: 14px;
    background: #f8fafc;
}

.plan-item span,
.checkpoint-item span {
    display: block;
    margin-bottom: 6px;
    color: #64748b;
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.plan-item strong,
.checkpoint-item strong {
    color: #0f172a;
}

.plan-item p,
.checkpoint-item p,
.planner-empty {
    color: #64748b;
    line-height: 1.7;
}

.planner-empty {
    margin-top: 24px;
    padding: 18px;
    border: 1px dashed #cbd5e1;
    border-radius: 16px;
    background: #f8fafc;
}

@media (max-width: 900px) {
    .form-grid,
    .result-grid,
    .plan-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .planner-card {
        border-radius: 20px;
    }

    .planner-actions {
        flex-direction: column;
    }

    .planner-button,
    .back-link {
        width: 100%;
    }
}