/* ============================================
   Crebi Pay — System 2 (Popup Payment UI)
   v2.0.0 — CrebiTel Technology Ltd.
   ============================================ */

:root {
    --cs2-primary:  #6366f1;
    --cs2-purple:   #8b5cf6;
    --cs2-dark:     #1e293b;
    --cs2-muted:    #64748b;
    --cs2-border:   #e2e8f0;
    --cs2-bg:       #f8fafc;
    --cs2-success:  #10b981;
    --cs2-danger:   #ef4444;
    --cs2-radius:   18px;
    --cs2-shadow:   0 32px 96px rgba(0,0,0,.28), 0 8px 24px rgba(0,0,0,.12);
    --cs2-mc:       #6366f1; /* method color — overridden inline */
}

/* ──────────────────────────────
   TRIGGER BUTTON
────────────────────────────── */
.cs2-open-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--cs2-primary), var(--cs2-purple));
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: transform .2s, box-shadow .2s;
    box-shadow: 0 4px 20px rgba(99,102,241,.4);
    font-family: inherit;
    line-height: 1.3;
}
.cs2-open-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(99,102,241,.5);
}
.cs2-btn-amount {
    background: rgba(255,255,255,.2);
    border-radius: 20px;
    padding: 2px 12px;
    font-size: 14px;
    font-weight: 600;
}

/* ──────────────────────────────
   OVERLAY
────────────────────────────── */
.cs2-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, .65);
    z-index: 999999;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    align-items: center;
    justify-content: center;
    padding: 16px;
}
.cs2-overlay--open { display: flex; }
.cs2-body-open     { overflow: hidden !important; }

/* ──────────────────────────────
   MODAL
────────────────────────────── */
.cs2-modal {
    background: #fff;
    border-radius: var(--cs2-radius);
    box-shadow: var(--cs2-shadow);
    width: 100%;
    max-width: 460px;
    max-height: 92vh;
    overflow-y: auto;
    position: relative;
    animation: cs2Up .32s cubic-bezier(.22, 1, .36, 1);
}
.cs2-modal::-webkit-scrollbar       { width: 4px; }
.cs2-modal::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }

@keyframes cs2Up {
    from { transform: translateY(48px) scale(.97); opacity: 0; }
    to   { transform: translateY(0)    scale(1);   opacity: 1; }
}

/* ──────────────────────────────
   CLOSE BUTTON
────────────────────────────── */
.cs2-close {
    position: absolute;
    top: 12px; right: 12px;
    width: 34px; height: 34px;
    border-radius: 50%;
    background: #f1f5f9;
    border: 1.5px solid var(--cs2-border);
    color: var(--cs2-muted);
    font-size: 13px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    transition: background .2s, color .2s, border-color .2s;
    z-index: 5;
}
.cs2-close:hover { background: var(--cs2-danger); border-color: var(--cs2-danger); color: #fff; }

/* ──────────────────────────────
   SCREEN WRAPPER
────────────────────────────── */
.cs2-screen { padding: 28px 24px 0; }
.cs2-success-screen { padding: 36px 28px 0; text-align: center; }

/* ──────────────────────────────
   MODAL HEAD (logo zone)
────────────────────────────── */
.cs2-modal-head {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60px;
    border-bottom: 1px solid var(--cs2-border);
    padding-bottom: 18px;
    margin-bottom: 20px;
}
.cs2-site-logo {
    max-height: 54px;
    max-width: 190px;
    object-fit: contain;
}
.cs2-site-name {
    font-size: 20px;
    font-weight: 800;
    color: var(--cs2-dark);
    letter-spacing: -.3px;
}

/* ──────────────────────────────
   ORDER INFO
────────────────────────────── */
.cs2-order-info {
    text-align: center;
    margin-bottom: 22px;
    padding: 16px;
    background: linear-gradient(135deg, #f0f4ff, #faf5ff);
    border-radius: 14px;
}
.cs2-order-title  { font-size: 14px; color: var(--cs2-muted); margin-bottom: 6px; }
.cs2-order-amount {
    font-size: 38px;
    font-weight: 900;
    color: var(--cs2-dark);
    line-height: 1;
    letter-spacing: -1px;
}
.cs2-order-amount span {
    font-size: 18px;
    font-weight: 500;
    color: var(--cs2-muted);
    margin-left: 4px;
}
.cs2-order-id {
    display: inline-block;
    font-size: 11px;
    color: var(--cs2-muted);
    background: rgba(255,255,255,.7);
    border: 1px solid var(--cs2-border);
    border-radius: 20px;
    padding: 3px 12px;
    margin-top: 8px;
}

/* ──────────────────────────────
   SECTION LABEL
────────────────────────────── */
.cs2-section-label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .8px;
    color: var(--cs2-muted);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 7px;
}

/* ──────────────────────────────
   METHODS GRID
────────────────────────────── */
.cs2-methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}
.cs2-method-btn {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 18px 12px 14px;
    border: 2px solid var(--cs2-border);
    border-radius: 14px;
    background: #fff;
    cursor: pointer;
    transition: all .22s cubic-bezier(.22,1,.36,1);
    font-family: inherit;
    text-align: center;
}
.cs2-method-btn:hover {
    border-color: var(--cs2-primary);
    background: #f5f3ff;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(99,102,241,.2);
}
.cs2-method-btn img {
    width: 58px;
    height: 58px;
    object-fit: contain;
    border-radius: 12px;
    background: var(--cs2-bg);
    padding: 4px;
}
.cs2-method-name { font-size: 14px; font-weight: 700; color: var(--cs2-dark); }
.cs2-method-type { font-size: 11px; color: var(--cs2-muted); }
.cs2-method-arrow {
    position: absolute;
    top: 10px; right: 10px;
    font-size: 10px;
    color: var(--cs2-border);
    transition: color .2s;
}
.cs2-method-btn:hover .cs2-method-arrow { color: var(--cs2-primary); }

/* ──────────────────────────────
   MODAL FOOTER
────────────────────────────── */
.cs2-modal-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px 18px;
    border-top: 1px solid var(--cs2-border);
    margin-top: 20px;
    font-size: 11px;
    color: #94a3b8;
    letter-spacing: .3px;
}
.cs2-powered-logo {
    height: 20px;
    object-fit: contain;
    opacity: .65;
    filter: grayscale(20%);
    transition: opacity .2s;
}
.cs2-powered-logo:hover { opacity: 1; }

/* ──────────────────────────────
   SCREEN 2 — Head
────────────────────────────── */
.cs2-s2-head    { margin-bottom: 18px; }
.cs2-back-btn {
    background: none;
    border: none;
    color: var(--cs2-primary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    margin-bottom: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: inherit;
    transition: opacity .2s;
}
.cs2-back-btn:hover { opacity: .75; }

.cs2-method-header {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--cs2-bg);
    border-radius: 12px;
    padding: 13px 16px;
}
.cs2-method-header img {
    width: 46px; height: 46px;
    object-fit: contain;
    border-radius: 10px;
    background: #fff;
    padding: 3px;
}
.cs2-mh-name { font-size: 17px; font-weight: 700; color: var(--cs2-dark); }
.cs2-mh-type { font-size: 12px; color: var(--cs2-muted); margin-top: 2px; }

/* ──────────────────────────────
   INSTRUCTIONS BOX
────────────────────────────── */
.cs2-instructions { margin-bottom: 20px; }
.cs2-instr-box {
    background: color-mix(in srgb, var(--cs2-mc) 7%, white);
    border-left: 4px solid var(--cs2-mc);
    border-radius: 12px;
    padding: 16px 18px;
}
.cs2-instr-title {
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 7px;
}
.cs2-instr-list {
    margin: 0;
    padding-left: 20px;
    list-style: decimal;
}
.cs2-instr-list li {
    font-size: 13px;
    color: var(--cs2-dark);
    margin-bottom: 10px;
    line-height: 1.6;
}
.cs2-instr-list li:last-child { margin-bottom: 0; }
.cs2-instr-val {
    font-family: 'Courier New', monospace;
    font-weight: 700;
    font-size: 13px;
    color: var(--cs2-mc);
    background: rgba(255,255,255,.75);
    border: 1px solid color-mix(in srgb, var(--cs2-mc) 25%, white);
    padding: 2px 9px;
    border-radius: 6px;
    display: inline;
}
.cs2-copy-btn-instr {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--cs2-mc);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 3px 10px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity .18s;
    font-family: inherit;
    vertical-align: middle;
}
.cs2-copy-btn-instr:hover { opacity: .82; }

/* ──────────────────────────────
   FORM
────────────────────────────── */
.cs2-form    { display: flex; flex-direction: column; }
.cs2-field   { margin-bottom: 15px; }
.cs2-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--cs2-dark);
    margin-bottom: 6px;
}
.cs2-req { color: var(--cs2-danger); }
.cs2-opt { color: var(--cs2-muted); font-weight: 400; font-size: 11px; }

.cs2-fields-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.cs2-input {
    width: 100%;
    padding: 11px 14px;
    border: 2px solid var(--cs2-border);
    border-radius: 10px;
    font-size: 14px;
    color: var(--cs2-dark);
    background: #fff;
    box-sizing: border-box;
    font-family: inherit;
    transition: border-color .2s, box-shadow .2s;
}
.cs2-input:focus {
    outline: none;
    border-color: var(--cs2-primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,.1);
}
.cs2-trxid-input {
    font-family: 'Courier New', monospace;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .5px;
}

.cs2-field--trxid { margin-bottom: 12px; }
.cs2-field-hint {
    font-size: 11px;
    color: var(--cs2-muted);
    margin-top: 5px;
}
.cs2-field-error {
    font-size: 12px;
    color: var(--cs2-danger);
    background: #fee2e2;
    border-radius: 6px;
    padding: 6px 10px;
    margin-top: 5px;
    display: flex;
    align-items: center;
    gap: 5px;
}
.cs2-form-error {
    background: #fee2e2;
    border-left: 3px solid var(--cs2-danger);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 13px;
    color: #991b1b;
    margin-bottom: 14px;
}

/* ──────────────────────────────
   VERIFY BUTTON
────────────────────────────── */
.cs2-verify-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 15px;
    background: linear-gradient(135deg, var(--cs2-primary), var(--cs2-purple));
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 18px rgba(99,102,241,.38);
    transition: transform .2s, box-shadow .2s, opacity .2s;
    margin: 6px 0 20px;
    font-family: inherit;
}
.cs2-verify-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(99,102,241,.48);
}
.cs2-verify-btn:disabled { opacity: .6; cursor: not-allowed; transform: none; }

/* ──────────────────────────────
   SUCCESS SCREEN
────────────────────────────── */
.cs2-success-icon {
    width: 84px; height: 84px;
    border-radius: 50%;
    background: linear-gradient(135deg, #10b981, #34d399);
    display: flex; align-items: center; justify-content: center;
    font-size: 38px; color: #fff;
    margin: 0 auto 20px;
    animation: cs2Pop .5s cubic-bezier(.175,.885,.32,1.275);
}
@keyframes cs2Pop {
    from { transform: scale(0); opacity: 0; }
    to   { transform: scale(1); opacity: 1; }
}
.cs2-success-screen h3 {
    font-size: 24px;
    color: var(--cs2-dark);
    margin: 0 0 10px;
}
.cs2-success-screen p {
    font-size: 14px;
    color: var(--cs2-muted);
    line-height: 1.65;
    max-width: 320px;
    margin: 0 auto 18px;
}
.cs2-success-trxid {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #f0f4ff;
    border: 1.5px solid #c7d2fe;
    border-radius: 10px;
    padding: 10px 20px;
    font-size: 14px;
    color: var(--cs2-primary);
    margin-bottom: 6px;
}

/* notice */
.cs2-notice {
    background: #fef3c7;
    border-left: 4px solid #f59e0b;
    padding: 13px 16px;
    border-radius: 8px;
    font-size: 14px;
    color: #92400e;
}

/* ──────────────────────────────
   RESPONSIVE
────────────────────────────── */
@media (max-width: 480px) {
    .cs2-overlay   { align-items: flex-end; padding: 0; }
    .cs2-modal     { max-width: 100%; border-radius: 20px 20px 0 0; }
    .cs2-fields-row { grid-template-columns: 1fr; }
    .cs2-methods-grid { grid-template-columns: repeat(2, 1fr); }
    .cs2-order-amount { font-size: 30px; }
}