/* Platform login hub — /login/ */
.sd-platform-hero {
    background: linear-gradient(145deg, var(--bg-gradient-start) 0%, #0a3d5c 48%, var(--bg-gradient-end) 100%);
    color: #fff;
    padding: 3.5rem 0 3rem;
    text-align: center;
}

.sd-platform-hero h1 {
    font-size: clamp(1.75rem, 4vw, 2.35rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
    color: #fff;
}

.sd-platform-hero p {
    max-width: 36rem;
    margin: 0 auto;
    color: rgba(255, 255, 255, 0.88);
    font-size: 1.05rem;
}

.sd-platform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: -2rem;
    padding-bottom: 3rem;
}

.sd-platform-card {
    background: var(--bg-white);
    border-radius: 14px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    padding: 1.75rem 1.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.sd-platform-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.sd-platform-card__badge {
    display: inline-block;
    align-self: flex-start;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
}

.sd-platform-card--hr .sd-platform-card__badge {
    background: rgba(12, 90, 140, 0.12);
    color: var(--primary-color);
}

.sd-platform-card--marketing .sd-platform-card__badge {
    background: rgba(15, 118, 110, 0.12);
    color: var(--secondary-color);
}

.sd-platform-card--technical .sd-platform-card__badge {
    background: rgba(109, 40, 217, 0.1);
    color: var(--accent-color);
}

.sd-platform-card h2 {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-dark);
    margin: 0;
}

.sd-platform-card p {
    color: var(--text-medium);
    font-size: 0.95rem;
    margin: 0;
    flex: 1;
}

.sd-platform-card .btn-primary {
    width: 100%;
    text-align: center;
    text-decoration: none;
    margin-top: 0.5rem;
}

.sd-platform-note {
    max-width: 40rem;
    margin: 0 auto 2.5rem;
    padding: 1rem 1.25rem;
    background: var(--bg-light);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    font-size: 0.92rem;
    color: var(--text-medium);
}

.sd-platform-note a {
    color: var(--primary-color);
    font-weight: 600;
}

.header .nav a.nav-platform-login {
    font-weight: 700;
    color: var(--primary-color);
}

/* Master login gate — visibility controlled only by body.empever-gate-active */
body.empever-gate-active {
    overflow: hidden;
}

body.empever-gate-active #empever-app {
    display: none !important;
}

body:not(.empever-gate-active) #empever-master-gate {
    display: none !important;
}

body.empever-gate-active #empever-master-gate {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: linear-gradient(145deg, var(--bg-gradient-start) 0%, #0a3d5c 48%, var(--bg-gradient-end) 100%);
}

body:not(.empever-gate-active) #empever-app {
    display: block;
}

/* Client picker modal (Switch client) */
.empever-client-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 10001;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.empever-client-modal--open {
    display: flex;
}

body.empever-client-modal-open {
    overflow: hidden;
}

.empever-client-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(10, 35, 55, 0.55);
    border: none;
    cursor: pointer;
}

.empever-client-modal__card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 520px;
    max-height: min(90vh, 640px);
    overflow-y: auto;
}

.empever-client-modal__card h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-dark);
    margin: 0 0 0.35rem;
}

.empever-client-modal__close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    width: 2rem;
    height: 2rem;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-light);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    font-family: inherit;
}

.empever-client-modal__close:hover {
    background: rgba(0, 0, 0, 0.06);
    color: var(--text-dark);
}

.header__row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem 1.5rem;
}

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

.header__row .empever-switch-client {
    margin-left: auto;
}

.empever-client-grid {
    display: grid;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.empever-client-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    width: 100%;
    padding: 1rem 1.1rem;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-white);
    cursor: pointer;
    font-family: inherit;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.empever-client-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.empever-client-card__label {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
}

.empever-client-card__desc {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 0.35rem;
    line-height: 1.4;
}

.empever-switch-client {
    margin-left: 0.75rem;
    padding: 0.25rem 0.65rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--primary-color);
    background: transparent;
    border: 1px solid var(--primary-color);
    border-radius: 6px;
    cursor: pointer;
    font-family: inherit;
}

.empever-switch-client:hover {
    background: rgba(0, 102, 153, 0.08);
}

.sd-platform-card__client-hint {
    font-size: 0.8125rem;
    color: var(--text-light);
    margin: 0 0 0.5rem;
}

.sd-platform-hero__sub {
    margin-top: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-light);
}

.empever-master-gate__card {
    width: 100%;
    max-width: 400px;
    background: var(--bg-white);
    border-radius: 14px;
    box-shadow: var(--shadow-xl);
    padding: 2rem 1.75rem;
    border: 1px solid var(--border-color);
}

.empever-master-gate__card h1 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-dark);
    margin: 0 0 0.35rem;
}

.empever-master-gate__card .sub {
    color: var(--text-light);
    font-size: 0.9rem;
    margin: 0 0 1.5rem;
}

.empever-master-gate__field {
    margin-bottom: 1rem;
}

.empever-master-gate__field label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-medium);
    margin-bottom: 0.35rem;
}

.empever-master-gate__field input {
    width: 100%;
    padding: 0.65rem 0.85rem;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
}

.empever-master-gate__field input:focus {
    outline: 2px solid var(--primary-color);
    border-color: transparent;
}

.empever-master-gate__error {
    color: var(--error-color);
    font-size: 0.875rem;
    margin: 0 0 1rem;
}

.empever-master-gate__submit {
    width: 100%;
    margin-top: 0.25rem;
}