/* ============================================================
   LOGIN PAGE - style-login.css
   Dark terminal themed login for Jurassic Park MUD (쥬라기공원)
   Loaded ONLY on the login page. Common styles are in game.css.
   ============================================================ */


/* ----- Body override ----- */
.login-page {
    overflow: auto;
    background-color: var(--bg-deep);
}


/* ============================================================
   LOGIN CONTAINER
   Acts as both full-viewport flex wrapper AND the card itself.
   ============================================================ */
.login-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 100vh;
    min-height: 100dvh;
    padding: 2rem 1rem;
    max-width: 480px;
    margin: 0 auto;
    background-color: var(--bg-panel);
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
}


/* ============================================================
   ASCII ART LOGO
   ============================================================ */
.game-logo {
    display: block;
    font-family: var(--font-mono);
    font-size: clamp(0.32rem, 1.1vw, 0.58rem);
    line-height: 1.15;
    color: var(--green);
    text-align: center;
    white-space: pre;
    margin: 0 auto 1rem;
    padding: 0;
    user-select: none;
    text-shadow:
        0 0 6px rgba(61, 214, 140, 0.4),
        0 0 18px rgba(61, 214, 140, 0.15);
    overflow: hidden;
}


/* ============================================================
   GAME SUBTITLE
   ============================================================ */
.game-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 1.5rem;
    padding: 0 1rem;
    line-height: 1.5;
}


/* ============================================================
   TAB BAR
   ============================================================ */
.tab-bar {
    display: flex;
    width: 100%;
    border-bottom: 1px solid var(--border);
}

.tab {
    flex: 1;
    padding: 0.75rem 0;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}

.tab:hover {
    color: var(--text-secondary);
}

.tab.active {
    color: var(--green);
    border-bottom-color: var(--green);
}


/* ============================================================
   LOGIN / REGISTER FORM
   ============================================================ */
.login-form {
    width: 100%;
    padding: 1.5rem 2rem;
}

.login-form .form-group {
    margin-bottom: 1rem;
}

.login-form .form-group:last-of-type {
    margin-bottom: 1.25rem;
}

.login-form label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.35rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.login-form .form-input {
    display: block;
    width: 100%;
    padding: 0.6rem 0.75rem;
    font-size: 0.85rem;
    color: var(--text-primary);
    background-color: var(--bg-terminal);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.login-form .form-input:focus {
    border-color: var(--green);
    box-shadow: 0 0 0 2px rgba(61, 214, 140, 0.12);
}

.login-form .form-input::placeholder {
    color: var(--text-muted);
}

.login-form .form-error {
    font-size: 0.75rem;
    color: var(--red);
    min-height: 1.2rem;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.login-form .form-btn {
    display: block;
    width: 100%;
    padding: 0.7rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--bg-deep);
    background-color: var(--green);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: opacity 0.15s;
    letter-spacing: 0.03em;
}

.login-form .form-btn:hover {
    opacity: 0.88;
}

.login-form .form-btn:active {
    opacity: 0.75;
}

.login-form .form-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.login-form .form-btn.loading {
    opacity: 0.5;
}


/* ============================================================
   OPTIONAL LABEL (e.g. "(선택)" after email label)
   ============================================================ */
.optional-label {
    font-size: 0.65rem;
    font-weight: 400;
    color: var(--text-muted);
    text-transform: none;
    letter-spacing: 0;
}


/* ============================================================
   LOGIN FOOTER
   ============================================================ */
.login-footer {
    text-align: center;
    padding: 1rem 0 0.5rem;
    margin-top: auto;
}

.version-text {
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 0.04em;
}


/* ============================================================
   RESPONSIVE - TABLET (max-width: 768px)
   ============================================================ */
@media (max-width: 768px) {
    .login-container {
        padding: 1.5rem 0.75rem;
    }

    .login-form {
        padding: 1.25rem 1.5rem;
    }

    .game-logo {
        font-size: clamp(0.28rem, 1vw, 0.5rem);
        margin-bottom: 0.75rem;
    }

    .game-subtitle {
        font-size: 0.8rem;
        margin-bottom: 1.25rem;
    }
}


/* ============================================================
   RESPONSIVE - MOBILE (max-width: 480px)
   ============================================================ */
@media (max-width: 480px) {
    .login-container {
        max-width: 100%;
        border-left: none;
        border-right: none;
        border-radius: 0;
        padding: 1.25rem 0.5rem;
    }

    .game-logo {
        font-size: clamp(0.24rem, 0.9vw, 0.42rem);
        margin-bottom: 0.6rem;
        text-shadow:
            0 0 4px rgba(61, 214, 140, 0.35),
            0 0 12px rgba(61, 214, 140, 0.1);
    }

    .game-subtitle {
        font-size: 0.75rem;
        margin-bottom: 1rem;
    }

    .tab {
        font-size: 0.8rem;
        padding: 0.6rem 0;
    }

    .login-form {
        padding: 1rem 1rem;
    }

    .login-form .form-input {
        padding: 0.55rem 0.65rem;
        font-size: 0.82rem;
    }

    .login-form .form-btn {
        padding: 0.65rem 0.75rem;
        font-size: 0.85rem;
    }

    .login-form label {
        font-size: 0.7rem;
    }
}


/* ============================================================
   RESPONSIVE - FOLD / VERY SMALL (max-width: 359px)
   ============================================================ */
@media (max-width: 359px) {
    .game-logo {
        font-size: 0.22rem;
    }

    .game-subtitle {
        font-size: 0.7rem;
    }

    .login-form {
        padding: 0.75rem 0.75rem;
    }
}