:root {
    --color-bg: #0d0f19;
    --color-panel: #1a1d2a;
    --color-panel-2: #222636;
    --color-border: rgba(255, 255, 255, 0.1);
    --color-text: #f5f7fb;
    --color-muted: #a7afc4;
    --color-accent: #d4af37;
    --color-success: #4ade80;
    --color-danger: #f87171;
    --shadow-lg: 0 24px 80px rgba(0, 0, 0, 0.35);
    --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-main);
    color: var(--color-text);
    background:
        radial-gradient(circle at top left, rgba(212, 175, 55, 0.12), transparent 26%),
        linear-gradient(180deg, #141827 0%, var(--color-bg) 100%);
}

main {
    min-height: 100vh;
}

a {
    color: inherit;
}

.container {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
}

.brand {
    display: inline-block;
    font-size: 1.8rem;
    font-weight: 700;
    text-decoration: none;
}

.brand span,
.eyebrow,
.link-label {
    color: var(--color-accent);
}

.eyebrow {
    margin: 0 0 0.35rem 0;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.78rem;
    font-weight: 600;
}

.lang-btn,
.btn {
    border-radius: 999px;
    border: 1px solid var(--color-border);
    font-family: inherit;
    font-weight: 700;
    letter-spacing: 0.03em;
    cursor: pointer;
}

.lang-btn {
    min-width: 52px;
    padding: 0.6rem 0.75rem;
    background: transparent;
    color: var(--color-text);
}

.access-shell,
.verify-shell {
    display: flex;
    align-items: center;
    padding: 2rem 0 4rem 0;
}

h1,
h2,
h3 {
    margin: 0 0 0.8rem 0;
}

h1 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    line-height: 1.05;
}

h2 {
    font-size: 1.6rem;
}

h3 {
    font-size: 1.25rem;
}

p {
    margin: 0 0 1rem 0;
    color: var(--color-muted);
}

.workspace-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(320px, 0.95fr);
    gap: 1.5rem;
    align-items: start;
}

.workspace-hidden {
    display: none;
}

.workspace-visible {
    display: grid;
}

.access-layout {
    min-height: calc(100vh - 6rem);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.access-panel {
    width: min(520px, 100%);
}

.access-lang-btn,
.verify-lang-btn {
    position: absolute;
    top: 0;
    right: 0;
}

.panel-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.sidebar-stack {
    display: grid;
    gap: 1.5rem;
}

.panel {
    background: linear-gradient(180deg, rgba(34, 38, 54, 0.92), rgba(26, 29, 42, 0.95));
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
}

.panel-large {
    padding: 1.8rem;
}

.auth-panel {
    margin-bottom: 1.5rem;
}

.auth-form,
.invoice-form,
.verify-container {
    display: flex;
    justify-content: center;
}

.verify-page-panel {
    width: min(760px, 100%);
}

.auth-grid,
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.form-span-full {
    grid-column: 1 / -1;
}

.auth-actions {
    display: flex;
    gap: 0.75rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.45rem;
    font-size: 0.95rem;
    font-weight: 500;
}

input,
textarea {
    width: 100%;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    background: rgba(255, 255, 255, 0.04);
    color: var(--color-text);
    padding: 0.95rem 1rem;
    font: inherit;
}

textarea {
    resize: vertical;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: rgba(212, 175, 55, 0.7);
}

.btn {
    background: linear-gradient(135deg, #d4af37, #f2d269);
    color: #121212;
    padding: 0.95rem 1.2rem;
}

.btn-outline {
    background: transparent;
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.status {
    padding: 1rem;
    border-radius: 14px;
    border: 1px solid var(--color-border);
    font-size: 0.95rem;
}

.status-info {
    background: rgba(255, 255, 255, 0.04);
    color: var(--color-muted);
}

.status-success {
    background: rgba(74, 222, 128, 0.14);
    border-color: rgba(74, 222, 128, 0.35);
    color: #d9ffe6;
}

.status-error {
    background: rgba(248, 113, 113, 0.14);
    border-color: rgba(248, 113, 113, 0.35);
    color: #ffe0e0;
}

.summary-list {
    display: grid;
    gap: 1rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
}

.total-row {
    padding-bottom: 0;
    border-bottom: none;
    font-size: 1.1rem;
}

.link-block {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--color-border);
}

.link-label {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.82rem;
    font-weight: 600;
}

#verification-link {
    display: block;
    margin: 0.45rem 0 1rem 0;
    word-break: break-word;
    text-decoration: none;
}

.verify-result {
    min-height: 180px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-border);
    border-radius: 14px;
    padding: 1rem;
    color: var(--color-muted);
}

.verify-result-badge {
    display: inline-block;
    margin-bottom: 0.75rem;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    background: rgba(212, 175, 55, 0.16);
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.8rem;
}

.verify-result-title {
    margin-bottom: 0.45rem;
}

.verify-result-grid {
    display: grid;
    gap: 0.8rem;
    margin-top: 1rem;
}

.verify-result-grid div {
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--color-border);
}

.verify-result-grid div:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.verify-result-grid span {
    display: block;
    margin-bottom: 0.2rem;
    color: var(--color-muted);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.verify-result-grid strong {
    color: var(--color-text);
    font-weight: 500;
}

.invoice-form-locked {
    opacity: 0.72;
}

@media (max-width: 980px) {
    .workspace-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .auth-actions,
    .panel-header-row {
        flex-direction: column;
        align-items: stretch;
    }

    .auth-grid,
    .form-grid {
        grid-template-columns: 1fr;
    }
    .access-lang-btn,
    .verify-lang-btn {
        position: static;
        margin-bottom: 1rem;
        margin-left: auto;
    }
}