*,
*::before,
*::after {
    box-sizing: border-box;
}

:root {
    --color-primary: #0F3D78;
    --color-secondary: #2FA84F;
    --color-text: #111827;
    --color-muted: #6B7280;
    --color-bg: #F9FAFB;
    --color-white: #FFFFFF;
    --color-border: #E5E7EB;
    --container-width: 1200px;
    --radius: 14px;
    --shadow-soft: 0 10px 30px rgba(15, 61, 120, 0.08);
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Inter, Arial, Helvetica, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: min(100% - 32px, var(--container-width));
    margin: 0 auto;
}

.site-header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    min-height: 84px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 14px 0;
}

.site-brand {
    flex-shrink: 0;
}

.site-logo {
    height: 44px;
    width: auto;
}

.main-nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 24px;
    margin: 0;
    padding: 0;
}

.main-nav a {
    font-weight: 600;
    color: var(--color-text);
    position: relative;
    padding: 8px 0;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--color-primary);
}

.main-nav a.active::after,
.main-nav a:hover::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 3px;
    border-radius: 999px;
    background: var(--color-secondary);
}

.language-switcher {
    flex-shrink: 0;
}

.language-switcher select {
    border: 1px solid var(--color-border);
    background: var(--color-white);
    color: var(--color-text);
    padding: 10px 12px;
    border-radius: 10px;
    font: inherit;
    cursor: pointer;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    border: 0;
    clip: rect(0 0 0 0);
}

main {
    padding: 48px 0;
}

.hero,
.seo-intro {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
    padding: 32px;
    margin-bottom: 24px;
}

.hero h1,
.hero h2,
.seo-intro h2 {
    margin-top: 0;
}

button,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 12px;
    padding: 14px 22px;
    background: var(--color-secondary);
    color: var(--color-white);
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

button:hover,
.btn:hover {
    opacity: 0.92;
}

footer {
    border-top: 1px solid var(--color-border);
    background: var(--color-white);
    padding: 24px 0;
    text-align: center;
    color: var(--color-muted);
}

@media (max-width: 980px) {
    .header-inner {
        flex-wrap: wrap;
        justify-content: center;
    }

    .main-nav {
        order: 3;
        width: 100%;
    }

    .main-nav ul {
        justify-content: center;
        flex-wrap: wrap;
        gap: 16px 20px;
    }
}

@media (max-width: 640px) {
    .container {
        width: min(100% - 20px, var(--container-width));
    }

    .site-logo {
        height: 38px;
    }

    .hero,
    .seo-intro {
        padding: 22px;
    }

    .main-nav ul {
        gap: 12px 16px;
    }

    .language-switcher {
        width: 100%;
        display: flex;
        justify-content: center;
    }
}

/* =========================
   LOGIN
   ========================= */

body.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #F9FAFB 0%, #EEF4FB 100%);
    padding: 24px;
}

.login-card {
    width: 100%;
    max-width: 460px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 18px;
    box-shadow: 0 18px 50px rgba(15, 61, 120, 0.10);
    padding: 32px;
}

.login-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}

.login-logo img {
    max-height: 58px;
    width: auto;
}

.login-card h1 {
    margin: 0 0 8px;
    text-align: center;
    font-size: 1.9rem;
    color: var(--color-primary);
}

.login-subtitle {
    margin: 0 0 28px;
    text-align: center;
    color: var(--color-muted);
}

.login-form {
    display: grid;
    gap: 18px;
}

.form-group {
    display: grid;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: var(--color-text);
}

.form-group input {
    width: 100%;
    border: 1px solid #D1D5DB;
    border-radius: 12px;
    padding: 14px 16px;
    font: inherit;
    background: var(--color-white);
    color: var(--color-text);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(15, 61, 120, 0.10);
}

.login-btn {
    width: 100%;
    margin-top: 4px;
}

.login-error {
    border: 1px solid #F3C7C7;
    background: #FFF1F1;
    color: #B42318;
    border-radius: 12px;
    padding: 14px 16px;
    margin-bottom: 18px;
    font-size: 0.95rem;
}


@media (max-width: 640px) {
    body.login-page {
        padding: 18px;
    }

    .login-card {
        padding: 24px;
        border-radius: 16px;
    }

    .login-logo img {
        max-height: 50px;
    }

    .login-card h1 {
        font-size: 1.65rem;
    }
}

/* =========================
   SIMULATOR
   ========================= */

.simulator-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
    margin-bottom: 24px;
}

.simulator-panel {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
    padding: 32px;
}

.simulator-panel h2,
.simulator-breakdown h3 {
    margin-top: 0;
}

.simulator-form {
    display: grid;
    gap: 18px;
}

.simulator-field {
    display: grid;
    gap: 8px;
}

.simulator-field label {
    font-weight: 600;
    color: var(--color-text);
}

.simulator-field input,
.simulator-field select {
    width: 100%;
    border: 1px solid #D1D5DB;
    border-radius: 12px;
    padding: 14px 16px;
    font: inherit;
    background: var(--color-white);
    color: var(--color-text);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.simulator-field input:focus,
.simulator-field select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(15, 61, 120, 0.10);
}

.simulator-submit {
    width: 100%;
    margin-top: 4px;
}

.simulator-empty-state {
    min-height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-muted);
    border: 1px dashed #CBD5E1;
    border-radius: 16px;
    padding: 24px;
    background: #F8FAFC;
}

.score-badge {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 170px;
    min-height: 170px;
    border-radius: 24px;
    margin-bottom: 22px;
    padding: 18px;
    color: var(--color-white);
    box-shadow: 0 16px 40px rgba(15, 61, 120, 0.16);
}

.score-badge-label {
    font-size: 0.95rem;
    font-weight: 600;
    opacity: 0.92;
}

.score-badge strong {
    font-size: 2.3rem;
    line-height: 1.1;
    margin-top: 8px;
}

.score-badge-1 { background: #B42318; }
.score-badge-2 { background: #D97706; }
.score-badge-3 { background: #0F3D78; }
.score-badge-4 { background: #1D7A35; }
.score-badge-5 { background: #2FA84F; }

.simulator-summary {
    display: grid;
    gap: 12px;
    margin-bottom: 18px;
}

.simulator-summary-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    border: 1px solid var(--color-border);
    border-radius: 14px;
    padding: 14px 16px;
    background: #FCFDFE;
}

.simulator-summary-item span {
    color: var(--color-muted);
}

.simulator-summary-item strong {
    color: var(--color-primary);
}

.simulator-score-text {
    margin: 18px 0 22px;
    font-size: 1.03rem;
}

.simulator-breakdown {
    border-top: 1px solid var(--color-border);
    padding-top: 18px;
}

.simulator-breakdown-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 0;
    border-bottom: 1px solid #EEF2F7;
}

.simulator-breakdown-row:last-child {
    border-bottom: 0;
}

.simulator-note {
    margin-top: 22px;
    color: var(--color-muted);
    font-size: 0.95rem;
}

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

.simulator-breakdown-row-help {
    align-items: flex-start;
}

.simulator-breakdown-label-wrap {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-width: 75%;
}

.simulator-help-text {
    color: var(--color-muted);
    font-size: 0.85rem;
    line-height: 1.4;
}

.simulator-personality {
    margin: 18px 0 22px;
    padding: 18px 20px;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    background: #FCFDFE;
}

.simulator-personality-1 {
    background: #FFF5F5;
    border-color: #F3C7C7;
}

.simulator-personality-2 {
    background: #FFF8EE;
    border-color: #F2D3A2;
}

.simulator-personality-3 {
    background: #F5F8FD;
    border-color: #C9D7ED;
}

.simulator-personality-4,
.simulator-personality-5 {
    background: #F2FBF4;
    border-color: #BFE3C7;
}

.simulator-personality-context {
    margin: 0 0 10px;
    font-weight: 700;
    color: var(--color-primary);
}

.simulator-personality-focus,
.simulator-personality-tip {
    margin: 10px 0 0;
    color: var(--color-text);
}

.simulator-score-text {
    margin: 0;
    font-size: 1.03rem;
}