:root {
    --bg: #0a0b0f;
    --surface: #12141a;
    --surface-2: #1a1d26;
    --border: rgba(255, 255, 255, 0.07);
    --primary: #6366f1;
    --primary-light: #818cf8;
    --secondary: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --text: #e2e8f0;
    --text-secondary: #64748b;
    --g1: linear-gradient(135deg, #6366f1, #8b5cf6);
    --g2: linear-gradient(135deg, #10b981, #059669);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    min-height: 100vh;
}

/* NAV */
.navbar {
    background: rgba(18, 20, 26, 0.97);
    border-bottom: 1px solid var(--border);
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 58px;
    max-width: 960px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-weight: 700;
    font-size: .95rem;
}

.logo i {
    color: var(--primary-light);
}

.nav-tabs {
    display: flex;
    gap: .4rem;
}

.nav-tab {
    display: flex;
    align-items: center;
    gap: .4rem;
    padding: .45rem .9rem;
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all .2s;
    font-size: .82rem;
}

.nav-tab:hover {
    background: var(--surface-2);
    color: var(--text);
}

.nav-tab.active {
    background: rgba(99, 102, 241, .15);
    color: var(--primary-light);
}

/* LAYOUT */
.view {
    display: none;
}

.view.active {
    display: block;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.4rem;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.card-title {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-weight: 600;
    font-size: .95rem;
}

.card-title i {
    color: var(--primary-light);
}

.grid-2 {
    display: grid;
    grid-template-columns:1fr 1fr;
    gap: 1.25rem;
}

/* BADGE */
.badge {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    padding: .22rem .55rem;
    border-radius: 20px;
    font-size: .72rem;
    font-weight: 500;
}

.badge-info {
    background: rgba(99, 102, 241, .15);
    color: var(--primary-light);
}

.badge-success {
    background: rgba(16, 185, 129, .15);
    color: var(--secondary);
}

.badge-warning {
    background: rgba(245, 158, 11, .15);
    color: var(--warning);
}

.badge-pending {
    background: rgba(100, 116, 139, .15);
    color: var(--text-secondary);
}

/* FORMS */
.form-group {
    margin-bottom: .9rem;
}

.form-label {
    display: block;
    margin-bottom: .35rem;
    color: var(--text-secondary);
    font-size: .78rem;
    font-weight: 500;
}

.form-input {
    width: 100%;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: .58rem .75rem;
    color: var(--text);
    font-size: .88rem;
    outline: none;
    transition: border-color .2s;
}

.form-input:focus {
    border-color: var(--primary);
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
    padding: .58rem 1.1rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-size: .83rem;
    font-weight: 500;
    transition: all .2s;
    font-family: inherit;
}

.btn:disabled {
    opacity: .5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--g1);
    color: #fff;
}

.btn-success {
    background: var(--g2);
    color: #fff;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}

.btn-outline:hover:not(:disabled) {
    background: var(--surface-2);
}

.btn-sm {
    padding: .35rem .7rem;
    font-size: .78rem;
}

/* SPINNER */
.spinner {
    width: 13px;
    height: 13px;
    border: 2px solid rgba(255, 255, 255, .25);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .7s linear infinite;
    flex-shrink: 0;
}

.big-spinner {
    width: 26px;
    height: 26px;
    border: 3px solid rgba(99, 102, 241, .2);
    border-top-color: var(--primary-light);
    border-radius: 50%;
    animation: spin .8s linear infinite;
}

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

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeUp .45s ease forwards;
}

/* TOKEN BOX */
.token-input-box {
    background: var(--surface-2);
    border: 2px dashed rgba(99, 102, 241, .35);
    border-radius: 14px;
    padding: 1.5rem;
    text-align: center;
    transition: border-color .3s;
}

.token-input-box.active-input {
    border-color: var(--primary);
}

.token-input-box p {
    color: var(--text-secondary);
    font-size: .82rem;
    margin-bottom: .9rem;
}

.token-input-combined {
    display: flex;
    gap: .6rem;
}

.token-input-combined .form-input {
    flex: 1;
}

/* INVOICE CARDS */
.invoice-card {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.1rem;
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.invoice-card .bank-logo {
    width: 38px;
    height: 38px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: .9rem;
    flex-shrink: 0;
}

.invoice-card .bank-header {
    display: flex;
    align-items: center;
    gap: .75rem;
}

.invoice-card .bank-name {
    font-weight: 600;
    font-size: .88rem;
}

.invoice-card .bank-iban {
    font-family: monospace;
    font-size: .75rem;
    color: var(--primary-light);
}

.invoice-row {
    display: flex;
    justify-content: space-between;
    font-size: .82rem;
    padding: .2rem 0;
}

.invoice-row.total {
    border-top: 1px solid var(--border);
    padding-top: .5rem;
    margin-top: .25rem;
    font-weight: 600;
}

.dl-btn {
    width: 100%;
    justify-content: center;
    background: rgba(99, 102, 241, .1);
    border: 1px solid rgba(99, 102, 241, .25);
    color: var(--primary-light);
}

.dl-btn:hover:not(:disabled) {
    background: rgba(99, 102, 241, .2);
}

.dl-btn.downloaded {
    background: rgba(16, 185, 129, .1);
    border-color: rgba(16, 185, 129, .25);
    color: var(--secondary);
}

/* TIMELINE TRACKER */
.timeline-tracker {
    position: relative;
    padding: 0 0 0;
}

.tl-bar-bg {
    height: 3px;
    background: var(--surface-2);
    position: relative;
    overflow: hidden;
}

.tl-bar-fill {
    height: 200%;
    border-radius: 3px;
    background: var(--g1);
    transition: width .4s ease;
    width: 0;
}

.tl-steps {
    display: flex;
    justify-content: space-between;
    margin-top: -.5rem;
    position: relative;
    z-index: 2;
}

.tl-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .4rem;
    flex: 1;
}

.tl-dot {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--surface-2);
    border: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .65rem;
    color: var(--text-secondary);
    transition: all .4s;
    flex-shrink: 0;
}

.tl-dot.done {
    background: var(--secondary);
    border-color: var(--secondary);
    color: #fff;
}

.tl-dot.active-dot {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.tl-dot.pulse {
    animation: pulse-dot 1.2s infinite;
}

@keyframes pulse-dot {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, .5);
    }
    50% {
        box-shadow: 0 0 0 6px rgba(99, 102, 241, 0);
    }
}

.tl-label {
    font-size: .68rem;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.3;
    max-width: 70px;
}

.tl-label.done-label {
    color: var(--secondary);
}

.tl-label.active-label {
    color: var(--primary-light);
}

/* TRANSFER ROWS */
.transfer-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: .9rem 1rem;
    transition: border-color .4s;
}

.transfer-row.pending-row {
    border-color: rgba(245, 158, 11, .2);
}

.transfer-row.done-row {
    border-color: rgba(16, 185, 129, .35);
}

.transfer-left {
    display: flex;
    align-items: center;
    gap: .75rem;
}

.transfer-icon {
    width: 34px;
    height: 34px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: .8rem;
    flex-shrink: 0;
}

.transfer-name {
    font-weight: 600;
    font-size: .85rem;
}

.transfer-amount {
    font-size: .78rem;
    color: var(--text-secondary);
}

/* BC PAYMENT */
.bc-box {
    background: rgba(99, 102, 241, .07);
    border: 1px solid rgba(99, 102, 241, .2);
    border-radius: 12px;
    padding: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.bc-row {
    display: flex;
    justify-content: space-between;
    font-size: .83rem;
}

.bc-hash {
    font-family: monospace;
    font-size: .72rem;
    color: var(--primary-light);
    word-break: break-all;
    margin-top: .25rem;
}

/* TOAST */
.toast-container {
    position: fixed;
    top: 68px;
    right: 1rem;
    display: flex;
    flex-direction: column;
    gap: .6rem;
    z-index: 999;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: .65rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: .65rem .9rem;
    min-width: 260px;
    max-width: 320px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, .5);
    animation: fadeUp .3s ease;
    transition: opacity .4s, transform .4s;
    pointer-events: auto;
}

.toast-icon {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: .85rem;
}

.toast-content h4 {
    font-size: .82rem;
    font-weight: 600;
    margin-bottom: .1rem;
}

.toast-content p {
    font-size: .75rem;
    color: var(--text-secondary);
}

/* SUPPLIER — Banks */
.bank-card {
    display: flex;
    align-items: center;
    gap: .9rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: .9rem;
    transition: border-color .4s;
}

.bank-card.signed {
    border-color: var(--secondary);
}

.bank-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
    font-size: .9rem;
}

.bank-status {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    font-size: .72rem;
    font-weight: 500;
    padding: .18rem .45rem;
    border-radius: 20px;
    transition: all .4s;
}

.bank-status.pending {
    background: rgba(100, 116, 139, .15);
    color: var(--text-secondary);
}

.bank-status.signing {
    background: rgba(99, 102, 241, .15);
    color: var(--primary-light);
}

.bank-status.signed {
    background: rgba(16, 185, 129, .15);
    color: var(--secondary);
}

.secret-url {
    display: flex;
    align-items: center;
    gap: .9rem;
    background: rgba(99, 102, 241, .07);
    border: 1px solid rgba(99, 102, 241, .2);
    border-radius: 12px;
    padding: 1rem;
}

.rate-hidden {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    background: rgba(255, 255, 255, .05);
    border-radius: 6px;
    padding: .25rem .6rem;
    color: var(--text-secondary);
    font-size: .82rem;
}

.token-display {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: .55rem .75rem;
    font-family: monospace;
    color: var(--primary-light);
    font-size: .88rem;
}

.form-input[readonly] {
    color: var(--text-secondary);
}

/* COUNTER BADGE */
.countdown-badge {
    font-size: .72rem;
    color: var(--warning);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: .25rem;
}

/* section separator  */
.section-sep {
    margin-top: 1.1rem;
    padding-top: 1.1rem;
    border-top: 1px solid var(--border);
}

/* SECTION STEPS for client */
.step-section {
    display: none;
}

.step-section.visible {
    display: block;
}