/**
 * AUTH — v1.1.2h Mobile Login UX Final Fix
 * Giữ nguyên tinh thần giao diện gốc, chỉ tinh chỉnh nhẹ để gọn và sang hơn.
 */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 28px 18px;
    background:
        radial-gradient(circle at 18% 12%, rgba(37, 99, 235, 0.055), transparent 25%),
        radial-gradient(circle at 86% 82%, rgba(30, 64, 175, 0.045), transparent 24%),
        #F4F7FB;
    color: var(--color-text);
}

.login-container {
    width: min(100%, 920px);
}

.login-card {
    padding: 34px 38px 30px;
    border: 1px solid rgba(203, 213, 225, 0.82);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 18px 48px rgba(30, 58, 95, 0.09);
}

.login-header {
    text-align: center;
}

.login-logo-wrap {
    width: auto;
    height: auto;
    margin: 0 auto 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
}

.login-logo {
    display: block;
    width: auto;
    height: 92px;
    max-width: 100%;
    object-fit: contain;
}

.login-header h1 {
    margin: 0;
    color: var(--color-primary);
    font-size: clamp(1.7rem, 3.1vw, 2.35rem);
    line-height: 1.16;
    font-weight: 800;
    letter-spacing: -0.025em;
}

.login-school {
    margin-top: 8px;
    color: var(--color-primary);
    font-size: clamp(0.92rem, 1.55vw, 1.06rem);
    font-weight: 800;
    letter-spacing: 0.045em;
    text-transform: uppercase;
}

.login-divider {
    width: 46px;
    height: 3px;
    margin: 15px auto 17px;
    border-radius: 999px;
    background: linear-gradient(90deg, #1D4ED8, #3B82F6);
}

.login-desc {
    max-width: 650px;
    margin: 0 auto 30px;
    color: var(--color-text-2);
    font-size: 0.98rem;
    line-height: 1.65;
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 22px;
}

.feature-card {
    padding: 20px 22px 18px;
    border: 1px solid #E2E8F0;
    border-radius: 14px;
    background: #FFFFFF;
    box-shadow: 0 6px 18px rgba(30, 58, 95, 0.035);
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}


.feature-card:hover {
    transform: translateY(-1px);
    border-color: #C5D3E5;
    box-shadow: 0 10px 24px rgba(30, 58, 95, 0.065);
}

.feature-card h2 {
    margin: 0 0 11px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 11px;
    color: var(--color-primary);
    font-size: 1.06rem;
    line-height: 1.35;
    font-weight: 800;
    text-align: left;
}

.feature-icon {
    width: 42px;
    height: 42px;
    display: inline-grid;
    place-items: center;
    flex: 0 0 42px;
    border-radius: 12px;
    background: #EEF4FF;
    color: #2563EB;
}

.feature-card--library .feature-icon {
    background: #FFF1F2;
    color: #E85D68;
}

.feature-icon svg {
    width: 26px;
    height: 26px;
}

.feature-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.feature-list li {
    position: relative;
    padding: 8px 0 8px 23px;
    border-bottom: 1px dashed rgba(203, 213, 225, 0.72);
    color: var(--color-text-2);
    font-size: 0.9rem;
    line-height: 1.4;
}

.feature-list li:last-child {
    border-bottom: 0;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 2px;
    top: 7px;
    color: #2563EB;
    font-weight: 800;
}

.login-action {
    width: min(100%, 420px);
    margin: 0 auto;
    text-align: center;
}

.google-btn-wrap {
    width: min(100%, 380px);
    min-height: 48px;
    margin: 6px auto 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.24s ease;
}

.google-signin-button {
    width: 100%;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-note {
    margin-top: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    color: #64748B;
    font-size: 0.8rem;
    line-height: 1.45;
}

.login-note-icon {
    width: 17px;
    height: 17px;
    display: inline-grid;
    place-items: center;
    flex: 0 0 17px;
    border: 1px solid #CBD5E1;
    border-radius: 50%;
    color: #64748B;
    font-size: 0.68rem;
    font-weight: 800;
    font-style: normal;
}

.login-copyright {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid #EEF2F7;
    color: #94A3B8;
    font-size: 0.75rem;
    line-height: 1.45;
    text-align: center;
}

.login-loading {
    width: 100%;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--color-primary-l);
    font-size: 0.9rem;
    font-weight: 700;
}

.login-loading::before {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-primary-soft);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: login-spin 0.75s linear infinite;
}

.login-error {
    width: 100%;
    padding: 13px;
    border: 1px solid #FECACA;
    border-radius: 9px;
    background: var(--color-danger-bg);
    text-align: center;
}

.login-error p {
    margin-bottom: 9px;
    color: #991B1B;
    font-size: 0.86rem;
    line-height: 1.45;
}

.login-error button:focus-visible {
    outline: 3px solid rgba(59, 130, 246, 0.25);
    outline-offset: 3px;
}

@keyframes login-spin {
    to { transform: rotate(360deg); }
}

@media (max-width: 680px) {
    .login-page {
        align-items: flex-start;
        padding: 18px 12px;
    }

    .login-card {
        display: flex;
        flex-direction: column;
        padding: 24px 16px 22px;
        border-radius: 16px;
    }

    .login-header {
        order: 1;
    }

   .login-logo-wrap {
        margin-bottom: 18px;
    }

    .login-logo {
        width: auto;
        height: 74px;
    }

    .login-header h1 {
        max-width: 320px;
        margin-left: auto;
        margin-right: auto;
        font-size: clamp(1.2rem, 5.5vw, 1.38rem);
        line-height: 1.16;
        text-wrap: balance;
    }

    .login-school {
        font-size: 0.82rem;
        line-height: 1.4;
    }

    .login-desc {
        order: 2;
        margin-bottom: 17px;
        font-size: 0.88rem;
        line-height: 1.58;
    }

    .login-desc-break {
        display: none;
    }

    .login-action {
        order: 3;
        width: 100%;
        margin-bottom: 22px;
    }

    .google-btn-wrap {
        width: 100%;
        min-height: 46px;
        overflow: visible;
    }

    .google-signin-button {
        width: 100%;
        min-height: 46px;
        overflow: visible;
    }

    .login-note {
        margin-top: 12px;
        align-items: flex-start;
        text-wrap: pretty;
    }

    .features-grid {
        order: 4;
        grid-template-columns: 1fr;
        gap: 22px;
        margin-bottom: 0;
    }

    .feature-card {
        padding: 15px 13px 14px;
    }

    .feature-card h2 {
        justify-content: flex-start;
        gap: 10px;
        text-align: left;
    }

    .feature-list li {
        padding-left: 19px;
        font-size: 0.84rem;
        line-height: 1.45;
        text-wrap: pretty;
    }

    .feature-list li::before {
        left: 0;
    }

    .login-copyright {
        order: 5;
        margin-top: 18px;
        padding-top: 14px;
    }
}

@media (max-height: 760px) and (min-width: 681px) {
    .login-page {
        padding-top: 18px;
        padding-bottom: 18px;
    }

    .login-card {
        padding-top: 26px;
        padding-bottom: 24px;
    }

   .login-logo-wrap {
        margin-bottom: 14px;
    }

    .login-logo {
        width: auto;
        height: 72px;
    }

    .login-divider {
        margin-top: 12px;
        margin-bottom: 13px;
    }

    .login-desc {
        margin-bottom: 17px;
    }

    .features-grid {
        margin-bottom: 17px;
    }
}