/* ============================================
   components.css — Buttons, Forms, Cards, Messages, Footer
   ============================================ */

/* ── Primary Button ── */
.btn-primary {
    display: inline-block;
    width: 100%;
    padding: 12px 28px;
    background: var(--color-primary);
    color: var(--bg-body);
    font-size: 1rem;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    box-shadow: 0 4px 16px rgba(0, 188, 212, 0.3);
    transform: translateY(-1px);
}

/* ── Danger Button ── */
.btn-danger {
    display: inline-block;
    width: 100%;
    padding: 12px 28px;
    background: var(--color-danger);
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}

.btn-danger:hover {
    background: #e04040;
    box-shadow: 0 4px 16px rgba(255, 82, 82, 0.3);
    transform: translateY(-1px);
}

/* ── Account / USDT Button ── */
.btn-account,
.btn-usdt {
    display: block;
    width: 100%;
    padding: 14px 20px;
    margin-bottom: 12px;
    background: transparent;
    color: var(--color-primary);
    font-size: 1rem;
    font-weight: 700;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}

.btn-account:hover,
.btn-usdt:hover {
    background: var(--color-primary);
    color: var(--bg-body);
    box-shadow: 0 4px 16px rgba(0, 188, 212, 0.3);
}

/* ── Download Button ── */
.btn-download {
    display: inline-block;
    padding: 14px 40px;
    background: var(--color-primary);
    color: var(--bg-body);
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-download:hover {
    background: var(--color-primary-hover);
    box-shadow: 0 6px 20px rgba(0, 188, 212, 0.35);
    transform: translateY(-2px);
    color: var(--bg-body);
}

/* ── Amount Buttons ── */
.amount-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 10px 0 16px;
}

.btn-amount {
    padding: 8px 16px;
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.88rem;
    font-weight: 600;
    transition: all var(--transition);
}

.btn-amount:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(0, 188, 212, 0.08);
}

/* ── Form Elements ── */
label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--text-secondary);
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 11px 14px;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    margin-bottom: 16px;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 188, 212, 0.15);
}

input::placeholder {
    color: var(--text-muted);
}

select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238899AA' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

/* ── Error / Success Messages ── */
.error-message {
    background: rgba(255, 82, 82, 0.1);
    border: 1px solid rgba(255, 82, 82, 0.25);
    color: #FF8A80;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    margin-bottom: 16px;
    min-height: 0;
}

.error-message:empty {
    display: none;
}

.success-message {
    background: rgba(0, 188, 212, 0.1);
    border: 1px solid rgba(0, 188, 212, 0.25);
    color: var(--color-primary);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    margin-bottom: 16px;
    min-height: 0;
}

.success-message:empty {
    display: none;
}

/* ── Username Check (input + button row) ── */
.input-with-btn {
    display: flex;
    gap: 8px;
    margin-bottom: 4px;
}

.input-with-btn input[type="text"] {
    flex: 1;
    margin-bottom: 0;
}

.btn-check {
    flex-shrink: 0;
    padding: 10px 18px;
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-check:hover {
    background: var(--color-primary);
    color: var(--bg-body);
}

.btn-check:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.check-result {
    font-size: 0.84rem;
    font-weight: 600;
    min-height: 20px;
    margin-bottom: 12px;
    padding: 0 2px;
}

.check-result.check-success {
    color: var(--color-success);
}

.check-result.check-error {
    color: #FF8A80;
}

.red-text {
    color: #FF8A80;
    font-size: 0.9rem;
    line-height: 1.7;
}

.green-link {
    color: #4DD0E1;
    font-weight: 600;
}

.green-link:hover {
    color: var(--color-accent);
}

.usdt-amount {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 16px;
}

/* ── Modal Links ── */
.modal-links {
    text-align: center;
    margin-top: 16px;
}

.modal-links a {
    color: var(--color-primary);
    font-size: 0.9rem;
    font-weight: 600;
}

.modal-links a:hover {
    color: var(--color-accent);
    text-decoration: underline;
}

/* ── Feature Box ── */
.feature-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.feature-box:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 20px rgba(0, 188, 212, 0.1);
    transform: translateY(-3px);
}

.feature-box h3 {
    color: var(--color-primary);
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-box p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.6;
}

/* ── Footer ── */
.footer {
    background: var(--bg-footer);
    border-top: 1px solid var(--border-color);
    padding: 28px 20px;
    text-align: center;
    margin-top: auto;
}

.footer-content p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-content a {
    color: var(--text-secondary);
    font-weight: 600;
}

.footer-content a:hover {
    color: var(--color-primary);
}