/* ============================================================
   Climate Detectives Certificate Sender — Stylesheet
   Palette matching ESA Climate Detectives branding:
     Navy    #0D1B4B  (dark background)
     Green   #2F9C4F  (Climate Detectives green)
     LtGreen #5BBB78
     Yellow  #F5C400  (star accent)
     White   #FFFFFF
   ============================================================ */

.cd-cert-wrapper *,
.cd-cert-wrapper *::before,
.cd-cert-wrapper *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ── Outer wrapper ────────────────────────────────────────── */
.cd-cert-wrapper {
    font-family: 'Segoe UI', Arial, sans-serif;
    max-width: 680px;
    margin: 32px auto;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(13, 27, 75, 0.22);
}

/* ── Header ───────────────────────────────────────────────── */
.cd-cert-header {
    background: linear-gradient(135deg, #0D1B4B 0%, #162560 60%, #1a3070 100%);
    padding: 26px 32px;
    position: relative;
    overflow: hidden;
}

/* Decorative orbit rings */
.cd-cert-header::before {
    content: '';
    position: absolute;
    width: 260px; height: 260px;
    border: 2px solid rgba(47, 156, 79, 0.25);
    border-radius: 50%;
    top: -100px; right: -60px;
    pointer-events: none;
}
.cd-cert-header::after {
    content: '';
    position: absolute;
    width: 140px; height: 140px;
    border: 2px solid rgba(245, 196, 0, 0.20);
    border-radius: 50%;
    bottom: -50px; left: 30px;
    pointer-events: none;
}

.cd-cert-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.cd-cert-logo-area {
    display: flex;
    align-items: center;
    gap: 14px;
}

.cd-cert-logo-icon {
    font-size: 2.2rem;
    line-height: 1;
    filter: drop-shadow(0 2px 6px rgba(0,0,0,0.3));
}

.cd-cert-logo-text {
    font-size: 1.4rem;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.cd-cert-logo-sub {
    font-size: 0.75rem;
    color: #5BBB78;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-top: 3px;
}

.cd-cert-badge {
    background: #2F9C4F;
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 6px 16px;
    border-radius: 50px;
    box-shadow: 0 2px 10px rgba(47,156,79,0.4);
}

/* ── Main card ────────────────────────────────────────────── */
.cd-cert-card {
    background: #ffffff;
    padding: 36px 40px 40px;
}

.cd-cert-card-top {
    border-left: 5px solid #2F9C4F;
    padding-left: 16px;
    margin-bottom: 28px;
}

.cd-cert-title {
    font-size: 1.35rem;
    font-weight: 800;
    color: #0D1B4B;
    line-height: 1.25;
    margin-bottom: 6px;
}

.cd-cert-subtitle {
    font-size: 0.9rem;
    color: #4a5568;
    line-height: 1.55;
}

/* ── Alerts ───────────────────────────────────────────────── */
.cd-cert-alert {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 14px 18px;
    border-radius: 10px;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 24px;
    font-weight: 500;
}

.cd-cert-alert-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 1px;
}

.cd-cert-alert--success {
    background: #edfbf3;
    border: 1px solid #2F9C4F;
    color: #1a5c30;
}

.cd-cert-alert--error {
    background: #fff3f0;
    border: 1px solid #e53e3e;
    color: #822727;
}

/* ── Form layout ──────────────────────────────────────────── */
.cd-cert-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.cd-cert-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 520px) {
    .cd-cert-row { grid-template-columns: 1fr; }
    .cd-cert-card { padding: 24px 20px 28px; }
}

/* ── Labels ───────────────────────────────────────────────── */
.cd-cert-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 700;
    color: #0D1B4B;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 7px;
}

.cd-cert-required {
    color: #2F9C4F;
    font-size: 0.9rem;
}

/* ── Inputs ───────────────────────────────────────────────── */
.cd-cert-input {
    display: block;
    width: 100%;
    padding: 11px 14px;
    border: 2px solid #d1dce9;
    border-radius: 9px;
    font-size: 0.95rem;
    color: #1a202c;
    background: #f7fafd;
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
    outline: none;
    -webkit-appearance: none;
}

.cd-cert-input::placeholder { color: #a0aec0; }

.cd-cert-input:focus {
    border-color: #2F9C4F;
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(47, 156, 79, 0.18);
}

/* ── Submit button ────────────────────────────────────────── */
.cd-cert-submit-row { margin-top: 8px; }

.cd-cert-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 36px;
    background: linear-gradient(135deg, #2F9C4F 0%, #237a3c 100%);
    color: #ffffff;
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s, filter 0.15s;
    box-shadow: 0 4px 18px rgba(47, 156, 79, 0.40);
    -webkit-appearance: none;
}

.cd-cert-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 26px rgba(47, 156, 79, 0.50);
    filter: brightness(1.05);
}

.cd-cert-btn:active {
    transform: translateY(0);
    box-shadow: 0 3px 10px rgba(47, 156, 79, 0.35);
}

.cd-cert-btn-icon { font-size: 1.2rem; }