/* Frontend CSS */
.cv-search-wrapper { max-width: 900px; margin: 30px auto; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; }

.cv-search-box {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0,0,0,.10);
    padding: 36px 40px;
    text-align: center;
    margin-bottom: 30px;
}

.cv-search-title { font-size: 24px; font-weight: 700; color: #1a1a2e; margin: 0 0 8px; }
.cv-search-desc { color: #666; font-size: 15px; margin-bottom: 24px; }

.cv-search-form { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.cv-search-input {
    flex: 1; min-width: 220px; max-width: 400px;
    padding: 12px 18px; font-size: 16px;
    border: 2px solid #dde3f0; border-radius: 10px;
    outline: none; text-align: center; letter-spacing: 2px;
    transition: border-color .2s;
}
.cv-search-input:focus { border-color: #4a6cf7; }

.cv-search-button {
    padding: 12px 32px; font-size: 16px; font-weight: 700;
    background: linear-gradient(135deg, #4a6cf7, #7b4ff7);
    color: #fff; border: none; border-radius: 10px;
    cursor: pointer; transition: opacity .2s, transform .1s;
    font-family: inherit;
}
.cv-search-button:hover { opacity: .9; }
.cv-search-button:active { transform: scale(.98); }
.cv-search-button:disabled { opacity: .6; cursor: not-allowed; }

.cv-search-error {
    margin-top: 14px; color: #d32f2f; font-size: 15px;
    background: #fff3f3; border: 1px solid #f5c6cb;
    border-radius: 8px; padding: 10px 16px;
}

.cv-result-area { animation: cvFadeIn .4s ease; }
@keyframes cvFadeIn {
    from { opacity:0; transform:translateY(16px); }
    to { opacity:1; transform:translateY(0); }
}

/* Certificate Base */
.cv-cert {
    background: #fff;
    border-radius: 16px;
    padding: 40px;
    position: relative;
    overflow: hidden;
    max-width: 860px;
    margin: 0 auto;
    box-shadow: 0 8px 40px rgba(0,0,0,.15);
}

.cv-cert__header {
    display: flex; align-items: center;
    justify-content: space-between;
    margin-bottom: 24px; gap: 16px; flex-wrap: wrap;
}

.cv-cert__logo { max-height: 80px; max-width: 140px; object-fit: contain; }

.cv-cert__header-text { text-align: center; flex: 1; }
.cv-cert__badge { font-size: 42px; margin-bottom: 4px; }
.cv-cert__title { font-size: 26px; font-weight: 800; margin: 0 0 4px; letter-spacing: 1px; }
.cv-cert__subtitle { font-size: 12px; letter-spacing: 3px; text-transform: uppercase; margin: 0; opacity: .7; }

.cv-cert__id-wrap { text-align: center; min-width: 120px; }
.cv-cert__id-label { display: block; font-size: 10px; opacity: .6; margin-bottom: 4px; text-transform: uppercase; letter-spacing: 1px; }
.cv-cert__id { display: block; font-size: 14px; font-weight: 700; font-family: monospace; border-radius: 6px; padding: 4px 10px; letter-spacing: 1px; }

.cv-cert__divider { height: 3px; border-radius: 2px; margin: 0 0 28px; }

/* Body */
.cv-cert__body { display: flex; align-items: center; gap: 28px; margin-bottom: 28px; flex-wrap: wrap; }
.cv-cert__photo-wrap {
    border-radius: 12px; overflow: hidden; border: 4px solid rgba(255,255,255,.4);
    width: 140px; height: 160px; flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(0,0,0,.2); text-align: center;
}
.cv-cert__photo { width: 100%; height: 100%; object-fit: cover; display: block; }
.cv-cert__photo-caption { font-size: 11px; opacity: .7; margin-top: 4px; display: block; }

.cv-cert__details { flex: 1; }
.cv-cert__presented { font-size: 13px; opacity: .8; margin: 0 0 4px; }
.cv-cert__name { font-size: 28px; font-weight: 800; margin: 0 0 8px; border-bottom: 2px dashed rgba(255,255,255,.4); padding-bottom: 8px; }
.cv-cert__course-intro { font-size: 13px; opacity: .8; margin: 8px 0 4px; }
.cv-cert__course { font-size: 20px; font-weight: 700; margin: 0; }
.cv-cert__lab { font-size: 14px; margin: 8px 0 0; opacity: .8; }

/* Grid */
.cv-cert__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 14px; margin-bottom: 24px; }
.cv-cert__grid--2col { grid-template-columns: repeat(2, 1fr); }
.cv-cert__grid--4cs { grid-template-columns: repeat(4, 1fr); }
.cv-cert__grid-item { background: rgba(255,255,255,.15); border-radius: 10px; padding: 12px 16px; display: flex; flex-direction: column; gap: 4px; }
.cv-cert__grid-label { font-size: 11px; opacity: .7; font-weight: 600; }
.cv-cert__grid-value { font-size: 15px; font-weight: 700; }

/* 4Cs */
.cv-cert__4cs-title { text-align: center; font-size: 13px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; margin-bottom: 14px; }
.cv-cert__4c-item { background: rgba(255,255,255,.1); border-radius: 12px; padding: 16px 8px; text-align: center; }
.cv-cert__4c-icon { font-size: 22px; margin-bottom: 6px; }
.cv-cert__4c-label { font-size: 10px; letter-spacing: 2px; display: block; margin-bottom: 4px; text-transform: uppercase; }
.cv-cert__4c-value { font-size: 18px; font-weight: 800; display: block; }

/* Description */
.cv-cert__description { background: rgba(255,255,255,.12); border-radius: 10px; padding: 14px 18px; font-size: 14px; opacity: .9; margin-bottom: 20px; line-height: 1.8; }
.cv-cert__description h4 { margin: 0 0 8px; font-size: 13px; opacity: .7; text-transform: uppercase; letter-spacing: 1px; }

/* Verified Badge */
.cv-cert__verified { text-align: center; margin-bottom: 24px; padding: 16px; background: rgba(255,255,255,.1); border-radius: 10px; }
.cv-cert__verified-icon { font-size: 32px; display: block; }
.cv-cert__verified-text { font-size: 11px; font-weight: 700; letter-spacing: 2px; }

/* Actions */
.cv-cert__actions { text-align: center; margin-top: 24px; }
.cv-download-btn {
    display: inline-block;
    padding: 14px 32px;
    background: #fff;
    color: #1a1a2e;
    text-decoration: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 700;
    transition: transform .1s, opacity .2s;
    box-shadow: 0 2px 12px rgba(0,0,0,.15);
}
.cv-download-btn:hover { opacity: .9; transform: scale(1.02); }

/* Education — Blue */
.cv-cert--education { background: linear-gradient(135deg, #1a1a6e 0%, #4a6cf7 50%, #7b4ff7 100%); color: #fff; }
.cv-cert--education .cv-cert__divider { background: linear-gradient(90deg, #ffd700, #fff, #ffd700); }
.cv-cert--education .cv-cert__title { color: #ffd700; }
.cv-cert--education .cv-cert__id { border: 1px solid #ffd700; }

/* Stone — Green */
.cv-cert--stone { background: linear-gradient(135deg, #0d3b2e 0%, #1a7a5e 60%, #26a681 100%); color: #e0f5f0; }
.cv-cert--stone .cv-cert__divider { background: linear-gradient(90deg, #a8e6cf, #fff, #a8e6cf); }
.cv-cert--stone .cv-cert__title { color: #a8e6cf; }
.cv-cert--stone .cv-cert__id { border: 1px solid #a8e6cf; }

/* Diamond — Black/Gold */
.cv-cert--diamond { background: linear-gradient(135deg, #0a0a0a 0%, #1c1c2e 50%, #16213e 100%); color: #e8d5a3; border: 2px solid #c9a84c; }
.cv-cert--diamond .cv-cert__divider--diamond { background: linear-gradient(90deg, transparent, #c9a84c, #fff8e7, #c9a84c, transparent); height: 2px; }
.cv-cert--diamond .cv-cert__title { color: #c9a84c; }
.cv-cert--diamond .cv-cert__badge--diamond { filter: drop-shadow(0 0 8px #c9a84c); }
.cv-cert--diamond .cv-cert__subtitle { color: #a8916b; }
.cv-cert--diamond .cv-cert__id { border: 1px solid #c9a84c; color: #c9a84c; }
.cv-cert--diamond .cv-cert__name { color: #fff; border-bottom-color: rgba(201,168,76,.4); }
.cv-cert--diamond .cv-cert__grid-item { background: rgba(201,168,76,.08); border: 1px solid rgba(201,168,76,.25); }
.cv-cert--diamond .cv-cert__grid-label { color: #c9a84c; }
.cv-cert--diamond .cv-cert__grid-value { color: #fff; }
.cv-cert--diamond .cv-cert__4cs-title { color: #c9a84c; }
.cv-cert--diamond .cv-cert__4c-item { background: rgba(201,168,76,.1); border: 1px solid rgba(201,168,76,.25); }
.cv-cert--diamond .cv-cert__4c-label { color: #c9a84c; }
.cv-cert--diamond .cv-cert__4c-value { color: #fff; }
.cv-cert--diamond .cv-cert__description { background: rgba(201,168,76,.06); }
.cv-cert--diamond .cv-cert__download-btn { background: linear-gradient(135deg, #c9a84c, #f0d070); color: #000; }

.cv-cert__corner { position: absolute; font-size: 18px; color: #c9a84c; opacity: .6; }
.cv-cert__corner--tl { top: 12px; left: 12px; }
.cv-cert__corner--tr { top: 12px; right: 12px; }
.cv-cert__corner--bl { bottom: 12px; left: 12px; }
.cv-cert__corner--br { bottom: 12px; right: 12px; }

/* Grading Table */
.cv-cert__grading-title { text-align: center; font-size: 14px; font-weight: 700; letter-spacing: 2px; margin: 20px 0 12px; opacity: .8; }
.cv-cert__grading-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
    background: rgba(255,255,255,.05);
    border-radius: 8px;
    overflow: hidden;
}
.cv-cert__grading-table th,
.cv-cert__grading-table td {
    padding: 10px 12px;
    text-align: left;
    border: 1px solid rgba(255,255,255,.1);
}
.cv-cert__grading-table th {
    background: rgba(255,255,255,.1);
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.cv-cert__grading-table td {
    font-size: 13px;
}

/* Extra Images */
.cv-cert__images { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 20px; }
.cv-cert__image-item h4 { font-size: 12px; margin: 0 0 8px; opacity: .7; text-transform: uppercase; letter-spacing: 1px; }
.cv-cert__image-item img { width: 100%; height: auto; border-radius: 8px; border: 2px solid rgba(255,255,255,.2); }

.cv-cert__extra-photo { margin-bottom: 20px; text-align: center; }
.cv-cert__extra-photo img { max-width: 300px; border-radius: 8px; border: 2px solid rgba(255,255,255,.3); }

.cv-cert__qr { text-align: center; margin-bottom: 20px; }
.cv-cert__qr img { width: 120px; height: 120px; border-radius: 8px; background: #fff; padding: 8px; }

/* Responsive */
@media (max-width: 600px) {
    .cv-cert { padding: 20px; }
    .cv-cert__header { flex-direction: column; text-align: center; }
    .cv-cert__body { flex-direction: column; align-items: center; }
    .cv-cert__grid--2col, .cv-cert__grid--4cs { grid-template-columns: repeat(2, 1fr); }
    .cv-search-form { flex-direction: column; align-items: stretch; }
    .cv-search-input { max-width: 100%; }
    .cv-search-box { padding: 24px 20px; }
}

@media print {
    .cv-cert__actions, .cv-search-box { display: none !important; }
    .cv-cert { box-shadow: none; }
}