/* ── Front-home course-card enroll modal ──────────────────────────────────── */

:root {
    --sd-cem-accent:        #d84e3f;
    --sd-cem-accent-light:  rgba(216, 78, 63, 0.08);
    --sd-cem-border:        #e8edf2;
    --sd-cem-surface:       #f6f8fa;
    --sd-cem-text:          #1a2332;
    --sd-cem-muted:         #7a8ea0;
    --sd-cem-green:         #16a34a;
    --sd-cem-green-bg:      #dcfce7;
    --sd-cem-green-border:  rgba(22, 163, 74, 0.35);
    --sd-cem-radius:        12px;
    --sd-cem-radius-sm:     8px;
    --sd-cem-shadow:        0 12px 40px rgba(15, 23, 42, 0.14);
}

/* ── Scroll lock ─────────────────────────────────────────────────────────── */
body.sd-cem-open { overflow: hidden; }

/* ── Overlay ─────────────────────────────────────────────────────────────── */
.sd-cem {
    position: fixed;
    inset: 0;
    z-index: 100000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    box-sizing: border-box;
    pointer-events: none;
    visibility: hidden;
    opacity: 0;
    transition: visibility 0.22s ease, opacity 0.22s ease;
}

.sd-cem.is-open {
    pointer-events: auto;
    visibility: visible;
    opacity: 1;
}

.sd-cem__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(10, 18, 35, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    cursor: pointer;
}

/* ── Dialog ──────────────────────────────────────────────────────────────── */
.sd-cem__dialog {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 580px;
    max-height: min(90vh, 820px);
    background: #ffffff;
    border-radius: var(--sd-cem-radius);
    box-shadow: var(--sd-cem-shadow);
    overflow: hidden;
    transform: translateY(14px) scale(0.97);
    transition: transform 0.24s cubic-bezier(0.34, 1.2, 0.64, 1);
}

.sd-cem.is-open .sd-cem__dialog {
    transform: translateY(0) scale(1);
}

/* ── Header ──────────────────────────────────────────────────────────────── */
.sd-cem__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 20px;
    background: linear-gradient(180deg, #ffffff 0%, #f9fafb 100%);
    border-bottom: 1px solid var(--sd-cem-border);
    flex-shrink: 0;
}

.sd-cem__title {
    margin: 0;
    font-size: 15px;
    font-weight: 800;
    color: var(--sd-cem-text);
    letter-spacing: -0.02em;
    line-height: 1.3;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sd-cem__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    padding: 0;
    background: #ffffff;
    border: 1px solid var(--sd-cem-border);
    border-radius: var(--sd-cem-radius-sm);
    color: var(--sd-cem-muted);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.sd-cem__close:hover {
    background: var(--sd-cem-accent-light);
    border-color: rgba(216, 78, 63, 0.3);
    color: var(--sd-cem-accent);
}

/* ── Body ────────────────────────────────────────────────────────────────── */
.sd-cem__body {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    -webkit-overflow-scrolling: touch;
}

/* ── Loading ─────────────────────────────────────────────────────────────── */
.sd-cem__loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    min-height: 160px;
    flex: 1;
}

.sd-cem__spinner {
    width: 30px;
    height: 30px;
    border: 3px solid var(--sd-cem-border);
    border-top-color: var(--sd-cem-accent);
    border-radius: 50%;
    animation: sdCemSpin 0.65s linear infinite;
}

@keyframes sdCemSpin { to { transform: rotate(360deg); } }

.sd-cem__loading p {
    margin: 0;
    font-size: 13px;
    font-weight: 500;
    color: var(--sd-cem-muted);
}

/* ── Sessions section ────────────────────────────────────────────────────── */
.sd-cem__sessions-title {
    margin: 0 0 8px;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--sd-cem-muted);
}

.sd-cem__session-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* ── Session card ────────────────────────────────────────────────────────── */
.sd-cem__session {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    border: 1px solid var(--sd-cem-border);
    border-radius: var(--sd-cem-radius-sm);
    background: var(--sd-cem-surface);
    transition: border-color 0.15s, background 0.15s;
}

.sd-cem__session--full {
    opacity: 0.48;
}

.sd-cem__session--enrolled {
    border-color: var(--sd-cem-green-border);
    background: var(--sd-cem-green-bg);
}

/* Left: name + meta */
.sd-cem__session-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sd-cem__session-name {
    font-size: 13px;
    font-weight: 700;
    color: var(--sd-cem-text);
    line-height: 1.35;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sd-cem__session-meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sd-cem__session-time,
.sd-cem__session-seats {
    display: block;
    font-size: 11.5px;
    color: var(--sd-cem-muted);
    line-height: 1.4;
}

/* Right: badge + price */
.sd-cem__session-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 5px;
    flex-shrink: 0;
}

.sd-cem__session-enrolled-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 9px;
    border-radius: 50px;
    background: var(--sd-cem-green-bg);
    border: 1px solid var(--sd-cem-green-border);
    color: var(--sd-cem-green);
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.sd-cem__session-price {
    font-size: 13px;
    font-weight: 800;
    color: var(--sd-cem-accent);
    white-space: nowrap;
}

.sd-cem__session-price em {
    font-style: normal;
    font-size: 11px;
    font-weight: 400;
    color: var(--sd-cem-muted);
    margin-left: 3px;
}

/* ── CTA strip ───────────────────────────────────────────────────────────── */
.sd-cem__cta {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-top: 16px;
    border-top: 1px solid var(--sd-cem-border);
    margin-top: auto;
}

.sd-cem__cta-notice {
    margin: 0;
    font-size: 12.5px;
    color: var(--sd-cem-muted);
    line-height: 1.55;
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.sd-cem__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 13px 22px;
    border: none;
    border-radius: var(--sd-cem-radius-sm);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: -0.01em;
    text-decoration: none !important;
    color: #ffffff !important;
    cursor: pointer;
    transition: filter 0.18s ease, box-shadow 0.18s ease;
}

.sd-cem__btn--sm {
    width: auto;
    padding: 10px 22px;
    font-size: 13px;
}

/* Primary — red gradient (login / payment / enrolled) */
.sd-cem__btn--primary {
    background: linear-gradient(90deg, #f08b3a 0%, #e86b4f 45%, #d84e3f 100%);
    box-shadow: 0 3px 12px rgba(216, 78, 63, 0.3);
}

.sd-cem__btn--primary:hover {
    filter: brightness(1.07);
    box-shadow: 0 5px 18px rgba(216, 78, 63, 0.38);
    color: #ffffff !important;
}

/* View Course — ghost/outline style */
.sd-cem__btn--outline {
    background: transparent;
    border: 1.5px solid var(--sd-cem-border);
    color: var(--sd-cem-text) !important;
    box-shadow: none;
}

.sd-cem__btn--outline:hover {
    border-color: var(--sd-cem-accent);
    color: var(--sd-cem-accent) !important;
    filter: none;
    box-shadow: none;
}

.sd-cem__btn--outline svg {
    color: inherit;
}

/* Registration — same red theme */
.sd-cem__btn--reg {
    background: linear-gradient(90deg, #f08b3a 0%, #e86b4f 45%, #d84e3f 100%);
    box-shadow: 0 3px 12px rgba(216, 78, 63, 0.3);
}

.sd-cem__btn--reg:hover {
    filter: brightness(1.07);
    box-shadow: 0 5px 18px rgba(216, 78, 63, 0.38);
    color: #ffffff !important;
}

.sd-cem__btn svg {
    flex-shrink: 0;
    transition: transform 0.16s ease;
}

.sd-cem__btn:hover svg {
    transform: translateX(4px);
}

/* ── No sessions ─────────────────────────────────────────────────────────── */
.sd-cem__no-sessions {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 28px 20px;
    border-radius: var(--sd-cem-radius-sm);
    background: var(--sd-cem-surface);
    border: 1px dashed var(--sd-cem-border);
    text-align: center;
}

.sd-cem__no-sessions svg {
    color: var(--sd-cem-muted);
    opacity: 0.6;
    flex-shrink: 0;
}

.sd-cem__no-sessions p {
    margin: 0;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--sd-cem-text);
    line-height: 1.5;
}

.sd-cem__no-sessions span {
    font-size: 12px;
    color: var(--sd-cem-muted);
    line-height: 1.5;
}

/* ── Error ───────────────────────────────────────────────────────────────── */
.sd-cem__error {
    margin: 0;
    padding: 13px 16px;
    border-radius: var(--sd-cem-radius-sm);
    background: rgba(239, 68, 68, 0.06);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #dc2626;
    font-size: 13px;
    font-weight: 500;
    text-align: center;
    line-height: 1.5;
}

/* ── Course card footer (front-home cards) ───────────────────────────────── */
.sc-course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 14px;
    margin-top: 4px;
    border-top: 1px solid var(--sd-cem-border);
}

.sc-course-footer__price {
    font-size: 0.9rem;
    font-weight: 800;
    color: var(--primary, #d84e3f);
    line-height: 1.2;
    flex-shrink: 0;
}

.sc-course-footer__price-sep {
    font-weight: 400;
    color: #94a3b8;
}

.sc-course-footer__enroll-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 18px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    white-space: nowrap;
    cursor: pointer;
    text-decoration: none !important;
    border: 2px solid var(--primary, #d84e3f);
    color: var(--primary, #d84e3f);
    background: transparent;
    transition: background 0.18s, color 0.18s;
}

.sc-course-footer__enroll-btn:hover {
    background: var(--primary, #d84e3f);
    color: #ffffff;
}

.sc-course-footer__enroll-btn--full {
    border-color: #d1d5db;
    color: #9ca3af;
    cursor: default;
    pointer-events: none;
}

.sc-course-footer__enroll-btn--muted {
    border-color: #d1d5db;
    color: #6b7280;
}

.sc-course-footer__enroll-btn--muted:hover {
    background: #6b7280;
    border-color: #6b7280;
    color: #ffffff;
}

.sc-course-footer__no-sessions {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--sd-cem-muted);
}

/* ── Mobile ──────────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
    .sd-cem { padding: 12px; }

    .sd-cem__dialog {
        max-width: 100%;
        border-radius: 10px;
    }

    .sd-cem__header { padding: 14px 16px; }
    .sd-cem__body   { padding: 16px; gap: 14px; }

    .sd-cem__session { padding: 12px 14px; }

    .sd-cem__session-name { font-size: 12.5px; }

    .sd-cem__btn { padding: 12px 18px; font-size: 13.5px; }
}