/* --- Reset & Base --- */
:root {
    --color-black: #000000;
    --color-white: #ffffff;
    --color-gray-deep: #1a1a1a;
    --color-gray-med: #888888;
    --font-primary: 'Inter', 'Noto Sans JP', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    background-color: var(--color-black);
    color: var(--color-white);
    font-family: var(--font-primary);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;

    /* ズーム禁止対策 */
    touch-action: pan-x pan-y;
    /* ピンチズームを無効化 */
    -webkit-text-size-adjust: 100%;
    /* iOSの自動文字拡大を防止 */
    overscroll-behavior: none;
    /* バウンススクロールを抑制(任意) */
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px 25px;
}

@media (min-width: 768px) {
    .container {
        padding: 40px 60px;
    }
}

/* --- Header --- */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--color-gray-deep);
    margin-bottom: 40px;
}

.logo {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.2em;
}

.meta-nav {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-id {
    font-size: 0.65rem;
    color: var(--color-gray-med);
    letter-spacing: 0.1em;
}

.status-dot {
    width: 6px;
    height: 6px;
    background-color: #00ff88;
    border-radius: 50%;
    box-shadow: 0 0 10px #00ff88;
}

/* --- Lead Section --- */
.lead {
    margin-bottom: 50px;
}

.date-display {
    font-size: 0.7rem;
    color: var(--color-gray-med);
    letter-spacing: 0.2em;
    margin-bottom: 15px;
}

h1 {
    font-size: 2.2rem;
    font-weight: 300;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

/* --- Individual Section Styling (For injected HTML) --- */
.screen-section {
    margin-bottom: 50px;
}

.section-header {
    border-bottom: 1px solid var(--color-gray-deep);
    padding-bottom: 10px;
    margin-bottom: 25px;
}

.section-label {
    font-size: 0.6rem;
    color: var(--color-gray-med);
    letter-spacing: 0.3em;
}

/* Action Grid */
.action-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.action-card {
    background: transparent;
    border: 1px solid var(--color-gray-deep);
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: 0.4s;
}

.action-card:hover {
    background: var(--color-white);
    color: var(--color-black);
}

.action-label {
    display: block;
    font-size: 0.5rem;
    color: var(--color-gray-med);
    margin-bottom: 5px;
}

.action-name {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
}

.action-card:hover .action-label,
.action-card:hover .action-name {
    color: var(--color-black);
}

/* --- Main Grid --- */
.nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.nav-item {
    background-color: transparent;
    border: 1px solid var(--color-gray-deep);
    padding: 40px 30px;
    position: relative;
    text-decoration: none;
    color: var(--color-white);
    transition: 0.4s;
}

.nav-item:hover {
    background-color: var(--color-white);
    color: var(--color-black);
}

.nav-label {
    font-size: 0.65rem;
    color: var(--color-gray-med);
    margin-bottom: 20px;
    display: block;
}

.nav-title {
    font-size: 1.4rem;
    font-weight: 300;
    line-height: 1.3;
}

.nav-arrow {
    position: absolute;
    bottom: 30px;
    right: 30px;
    font-size: 1.2rem;
    opacity: 0;
    transition: 0.4s;
}

.nav-item:hover .nav-arrow {
    opacity: 1;
    transform: translateX(10px);
}

/* --- Overlay Screen (For Card & PDF) --- */
.overlay-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.98);
    z-index: 20000;
    display: none;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: 0.5s;
    backdrop-filter: blur(10px);
}

.screen-container {
    width: 92%;
    max-width: 800px;
}

.close-btn {
    color: #fff;
    font-size: 0.7rem;
    cursor: pointer;
    text-align: right;
    display: block;
    margin-bottom: 15px;
}

/* --- Login Overlay --- */
#login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-black);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: 0.5s;
}

.login-card {
    text-align: center;
    width: 85%;
    max-width: 300px;
}

.login-logo {
    font-size: 0.8rem;
    letter-spacing: 0.5em;
    margin-bottom: 50px;
}

.input-group input {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-gray-deep);
    color: var(--color-white);
    padding: 15px 5px;
    margin-bottom: 10px;
    font-size: 0.8rem;
    border-radius: 0;
}

.input-group input:focus {
    outline: none;
    border-color: var(--color-white);
}

#login-button {
    width: 100%;
    background: var(--color-white);
    color: var(--color-black);
    border: none;
    padding: 15px;
    margin-top: 30px;
    font-weight: 600;
    font-size: 0.7rem;
    cursor: pointer;
}

/* --- Footer --- */
footer {
    margin-top: 100px;
    padding-top: 25px;
    border-top: 1px solid var(--color-gray-deep);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    color: var(--color-gray-med);
    font-size: 0.6rem;
    letter-spacing: 0.1em;
}

@media (max-width: 767px) {
    .action-grid {
        grid-template-columns: 1fr;
    }
}