/* ============================================================
   QCS Certificate Verifier — Frontend Styles
   ============================================================ */

.qcs-verifier {
    --qcs-blue:          #6EC1E4;
    --qcs-blue-hover:    #4FAECE;
    --qcs-blue-tint:     #EBF5FB;
    --qcs-green:         #4CBD6B;
    --qcs-green-dark:    #27874A;
    --qcs-green-tint:    #E8F8EE;
    --qcs-green-border:  #7DD49A;
    --qcs-amber:         #CA8A04;
    --qcs-amber-tint:    #FEFCE8;
    --qcs-amber-border:  #DDB84A;
    --qcs-text:          #1A2535;
    --qcs-muted:         #8896AA;
    --qcs-border:        #D8E2EA;
    --qcs-radius:        10px;
    --qcs-radius-sm:     7px;

    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: var(--qcs-text);
    box-sizing: border-box;
}

.qcs-verifier *, .qcs-verifier *::before, .qcs-verifier *::after {
    box-sizing: border-box;
}

/* ── Form card ───────────────────────────────────────────── */
.qcs-verifier__card {
    background: #ffffff;
    border: 1px solid var(--qcs-border);
    border-radius: var(--qcs-radius);
    padding: 40px 40px 36px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.07), 0 1px 3px rgba(0,0,0,0.04);
}

/* ── Header ──────────────────────────────────────────────── */
.qcs-verifier__head {
    text-align: center;
    margin-bottom: 32px;
}

.qcs-verifier__head-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--qcs-blue-tint);
    border-radius: 14px;
    margin: 0 auto 16px;
    color: var(--qcs-blue);
}

.qcs-verifier__head-icon svg {
    width: 28px;
    height: 28px;
    display: block;
}

.qcs-verifier__title {
    font-family: 'Roboto Slab', Georgia, 'Times New Roman', serif !important;
    font-size: 1.3rem !important;
    font-weight: 700 !important;
    color: var(--qcs-text) !important;
    margin: 0 0 8px !important;
    padding: 0 !important;
    line-height: 1.25 !important;
    border: none !important;
    letter-spacing: -0.01em;
}

.qcs-verifier__subtitle {
    font-size: 0.875rem;
    color: var(--qcs-muted);
    margin: 0;
    line-height: 1.6;
}

/* ── Input field ─────────────────────────────────────────── */
.qcs-verifier__field {
    display: flex;
    flex-direction: column;
}

.qcs-verifier__label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--qcs-text);
    margin-bottom: 8px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.qcs-verifier__input {
    display: block;
    width: 100%;
    height: 50px;
    padding: 0 16px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--qcs-text);
    background: #ffffff;
    border: 1.5px solid var(--qcs-border);
    border-radius: var(--qcs-radius-sm);
    outline: none;
    transition: border-color 0.18s, box-shadow 0.18s;
    letter-spacing: 0.02em;
    -webkit-appearance: none;
}

.qcs-verifier__input:focus {
    border-color: var(--qcs-blue);
    box-shadow: 0 0 0 3px rgba(110,193,228,0.2);
}

.qcs-verifier__input::placeholder { color: #B0BEC8; }

.qcs-verifier__input.qcs--error {
    border-color: #E05252;
    box-shadow: 0 0 0 3px rgba(224,82,82,0.14);
}

/* ── Submit button ───────────────────────────────────────── */
.qcs-verifier__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    height: 50px;
    margin-top: 12px;
    padding: 0 24px;
    background: var(--qcs-blue);
    color: #ffffff;
    border: none;
    border-radius: var(--qcs-radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    letter-spacing: 0.02em;
    transition: background 0.18s, box-shadow 0.18s, transform 0.1s;
    position: relative;
    overflow: hidden;
}

.qcs-verifier__btn::after {
    content: '';
    position: absolute;
    top: 0; left: -80%;
    width: 55%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.22), transparent);
    transform: skewX(-18deg);
    transition: left 0s;
    pointer-events: none;
}

.qcs-verifier__btn:hover:not(:disabled) {
    background: var(--qcs-blue-hover);
    box-shadow: 0 4px 16px rgba(79,174,206,0.4);
}

.qcs-verifier__btn:hover:not(:disabled)::after {
    left: 130%;
    transition: left 0.45s ease;
}

.qcs-verifier__btn:active:not(:disabled) { transform: translateY(1px); }
.qcs-verifier__btn:disabled { opacity: 0.65; cursor: not-allowed; }

.qcs-verifier__spinner {
    width: 18px;
    height: 18px;
    display: none;
    animation: qcs-spin 0.75s linear infinite;
    flex-shrink: 0;
}

.qcs-verifier__btn.qcs--loading .qcs-verifier__spinner { display: block; }
.qcs-verifier__btn.qcs--loading .qcs-verifier__btn-text { opacity: 0.75; }
.qcs-verifier__btn.qcs--loading svg:not(.qcs-verifier__spinner) { display: none; }

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

.qcs-verifier__hint {
    font-size: 0.775rem;
    color: var(--qcs-muted);
    margin-top: 10px;
    line-height: 1.5;
    text-align: center;
}

/* ── Result wrapper ──────────────────────────────────────── */
.qcs-verifier__result { margin-top: 16px; }
.qcs-verifier__result[hidden] { display: none; }

@keyframes qcs-slide-up {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════════════════════════════ */
/*  VALID CERTIFICATE CARD                                    */
/* ══════════════════════════════════════════════════════════ */
.qcs-result-found {
    background: #ffffff;
    border: 2px solid var(--qcs-green-border);
    border-radius: var(--qcs-radius);
    overflow: hidden;
    animation: qcs-slide-up 0.3s cubic-bezier(0.22,1,0.36,1);
}

/* Hero */
.qcs-result-found__hero {
    background: linear-gradient(160deg, #E4F8EC 0%, #F0FCF4 100%);
    padding: 36px 32px 28px;
    text-align: center;
    border-bottom: 1px solid #B8E8C8;
}

/* ── Animated check circle ──────────────────────────────── */
/* r=30, circumference = 2π×30 ≈ 188.5 → use 189          */
.qcs-check-anim {
    display: block;
    width: 76px;
    height: 76px;
    margin: 0 auto 20px;
}

/* Background fill — pops in after ring completes */
.qcs-check-bg {
    fill: var(--qcs-green-tint);
    r: 30;
    animation: qcs-pop-bg 0.15s ease 0.55s both;
}

@keyframes qcs-pop-bg {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* Ring draws clockwise from top */
.qcs-check-ring {
    fill: none;
    stroke: var(--qcs-green);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-dasharray: 189;
    stroke-dashoffset: 189;
    transform-origin: center;
    transform: rotate(-90deg);
    animation: qcs-draw-ring 0.55s cubic-bezier(0.4,0,0.2,1) 0.05s forwards;
}

@keyframes qcs-draw-ring {
    to { stroke-dashoffset: 0; }
}

/* Tick draws after ring — path length ≈ 41 */
.qcs-check-tick {
    fill: none;
    stroke: var(--qcs-green-dark);
    stroke-width: 3.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 41;
    stroke-dashoffset: 41;
    animation: qcs-draw-tick 0.3s ease 0.58s forwards;
}

@keyframes qcs-draw-tick {
    to { stroke-dashoffset: 0; }
}

/* Status text */
.qcs-result-found__status {
    font-family: 'Roboto Slab', Georgia, serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--qcs-green-dark);
    margin: 0 0 6px;
    line-height: 1.2;
}

.qcs-result-found__tagline {
    font-size: 0.875rem;
    color: #3A7A50;
    margin: 0 0 20px;
    line-height: 1.5;
}

/* ── Details grid ────────────────────────────────────────── */
.qcs-result-found__body {
    padding: 24px 32px 20px;
}

.qcs-result-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px 24px;
}

.qcs-result-field__label {
    display: block;
    font-size: 0.67rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--qcs-muted);
    margin-bottom: 4px;
}

.qcs-result-field__value {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--qcs-text);
    line-height: 1.35;
}

/* Footer */
.qcs-result-found__footer {
    padding: 14px 32px 18px;
    border-top: 1px solid #C8E8D4;
    background: #F4FBF7;
    text-align: center;
}

.qcs-result-found__credit {
    font-size: 0.76rem;
    color: #5A8E68;
    margin: 0;
    line-height: 1.4;
}

/* ══════════════════════════════════════════════════════════ */
/*  NOT FOUND CARD                                            */
/* ══════════════════════════════════════════════════════════ */
.qcs-result-notfound {
    background: #ffffff;
    border: 2px solid var(--qcs-amber-border);
    border-radius: var(--qcs-radius);
    overflow: hidden;
    animation: qcs-slide-up 0.3s cubic-bezier(0.22,1,0.36,1);
}

.qcs-result-notfound__hero {
    background: linear-gradient(160deg, #FEFCE8 0%, #FFFDF4 100%);
    padding: 32px 32px 24px;
    text-align: center;
    border-bottom: 1px solid #E8D870;
}

/* Lucide-sized icon wrapper */
.qcs-notfound-icon-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: #FEF9E8;
    border: 2px solid var(--qcs-amber-border);
    border-radius: 50%;
    margin: 0 auto 16px;
    color: var(--qcs-amber);
}

.qcs-notfound-icon-wrap svg {
    width: 28px;
    height: 28px;
    display: block;
}

.qcs-result-notfound__status {
    font-family: 'Roboto Slab', Georgia, serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: #7B5800;
    margin: 0 0 6px;
}

.qcs-result-notfound__tagline {
    font-size: 0.875rem;
    color: var(--qcs-amber);
    margin: 0;
}

.qcs-result-notfound__body {
    padding: 22px 32px 24px;
}

.qcs-result-notfound__msg {
    font-size: 0.9rem;
    color: #5C4820;
    line-height: 1.65;
    margin: 0 0 16px;
}

.qcs-result-notfound__tips {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.qcs-result-notfound__tips li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.835rem;
    color: #7A6040;
    line-height: 1.5;
}

/* Lucide arrow-right as tip bullet */
.qcs-tip-icon {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    color: var(--qcs-amber);
    margin-top: 1px;
}

.qcs-result-notfound__footer {
    padding: 14px 32px 18px;
    border-top: 1px solid #E8D870;
    background: #FFFEF0;
    text-align: center;
}

.qcs-result-notfound__credit {
    font-size: 0.76rem;
    color: #9A7828;
    margin: 0;
}

/* ══════════════════════════════════════════════════════════ */
/*  ERROR / WARNING CARD                                      */
/* ══════════════════════════════════════════════════════════ */
.qcs-result-error {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: #FFFBF0;
    border: 1.5px solid #E8D060;
    border-radius: var(--qcs-radius-sm);
    padding: 16px 20px;
    animation: qcs-slide-up 0.2s ease;
    color: #6B5100;
}

/* Lucide alert-triangle icon */
.qcs-result-error svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    margin-top: 1px;
    color: var(--qcs-amber);
}

.qcs-result-error span {
    font-size: 0.875rem;
    line-height: 1.55;
}

/* ── Credit line ─────────────────────────────────────────── */
.qcs-verifier__credit {
    text-align: right;
    margin: 10px 0 0;
    font-size: 0.75rem;
    color: var(--qcs-muted);
    line-height: 1.4;
}

.qcs-credit-link {
    color: var(--qcs-blue-hover);
    font-weight: 600;
    text-decoration: none;
}

.qcs-credit-link:hover {
    color: var(--qcs-blue);
    text-decoration: underline;
}

/* ══════════════════════════════════════════════════════════ */
/*  MOBILE — ≤600px                                          */
/* ══════════════════════════════════════════════════════════ */
@media (max-width: 600px) {
    .qcs-verifier__card {
        padding: 28px 20px 24px;
        border-radius: 8px;
    }

    .qcs-verifier__head { margin-bottom: 24px; }

    .qcs-verifier__title { font-size: 1.15rem !important; }

    .qcs-result-found__hero,
    .qcs-result-notfound__hero {
        padding: 28px 20px 22px;
    }

    .qcs-result-found__body,
    .qcs-result-notfound__body {
        padding: 20px 20px 18px;
    }

    .qcs-result-found__footer,
    .qcs-result-notfound__footer {
        padding: 14px 20px 18px;
    }

    .qcs-result-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .qcs-verified-badge {
        height: 58px;
    }
}

@media (max-width: 400px) {
    .qcs-verifier__card { padding: 22px 16px 20px; }
    .qcs-verifier__input { height: 46px; font-size: 0.95rem; }
    .qcs-verifier__btn   { height: 46px; font-size: 0.9rem; }
}