:root {
    --color-accent:       #E8A319;
    --color-accent-dark:  #C58B14;
    --color-bg-dark:      #0F1B2D;
    --color-border-dark:  #1F3052;

    --color-bg:           #FFFFFF;
    --color-surface:      #FFFFFF;
    --color-bg-light:     #F1F5F9;
    --color-border:       #E2E8F0;

    --color-text-primary:        #1F3052;
    --color-text-secondary:      #475569;
    --color-text-muted:          #94A3B8;
    --color-text-on-dark:        #F1F5F9;
    --color-text-on-dark-muted:  #94A3B8;

    --space-1: 0.25rem;  --space-2: 0.5rem;   --space-3: 0.75rem;
    --space-4: 1rem;     --space-5: 1.25rem;  --space-6: 1.5rem;
    --space-8: 2rem;     --space-10: 2.5rem;  --space-12: 3rem;

    --radius-sm: 6px;  --radius-md: 10px;  --radius-lg: 14px;

    --color-success: #16A34A;
    --color-warning: #E8A319;
    --color-error:   #DC2626;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--color-text-primary);
    background: var(--color-bg-light);
    line-height: 1.55;
}

h1, h2, h3, h4 { margin: 0; line-height: 1.3; }

/* =========================================================== *
 * Brand-Mark                                                  *
 * =========================================================== */
.brand {
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.01em;
    border-bottom: 3px solid var(--color-accent);
    padding-bottom: 2px;
    color: inherit;
    text-decoration: none;
}

/* =========================================================== *
 * Buttons                                                     *
 * =========================================================== */
.btn {
    background: var(--color-accent);
    color: var(--color-bg-dark);
    border: none;
    border-radius: var(--radius-sm);
    padding: var(--space-3) var(--space-5);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    cursor: pointer;
    font-family: inherit;
    transition: background 0.15s ease;
}
.btn:hover { background: var(--color-accent-dark); }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.btn-block { width: 100%; text-align: center; }
.btn-ghost {
    background: transparent;
    color: var(--color-text-on-dark-muted);
    text-decoration: none;
    font-size: 0.85rem;
    padding: var(--space-2) 0;
    border: none;
    font-family: inherit;
    cursor: pointer;
}
.btn-ghost:hover { color: var(--color-accent); }

/* =========================================================== *
 * Login-Screen                                                *
 * =========================================================== */
.login-screen {
    min-height: 100vh;
    background: var(--color-bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-12) var(--space-4);
}
.login-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-accent);
    padding: var(--space-8);
    max-width: 460px;
    width: 100%;
    box-shadow: 0 12px 28px -12px rgba(0,0,0,0.4);
}
.login-card .brand { display: inline-block; margin-bottom: var(--space-6); }

.eyebrow {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--color-accent-dark);
    margin-bottom: var(--space-2);
}

.login-card h1 {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    margin-bottom: var(--space-3);
}

.login-card .lead {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
    font-size: 0.95rem;
}

.login-form { display: flex; flex-direction: column; gap: var(--space-3); }
.login-form label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-primary);
}
.login-form input[type="email"] {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
}
.login-form input[type="email"]:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(232, 163, 25, 0.18);
}

.privacy-hint {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: var(--space-4);
}
.privacy-hint a { color: var(--color-accent-dark); }

.login-back {
    display: block;
    text-align: center;
    margin-top: var(--space-6);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-decoration: none;
}
.login-back:hover { color: var(--color-accent-dark); }

.success-banner {
    background: rgba(22, 163, 74, 0.08);
    border-left: 3px solid var(--color-success);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-4);
}
.success-banner strong { display: block; margin-bottom: var(--space-2); color: var(--color-text-primary); }
.success-banner p { margin: 0; color: var(--color-text-secondary); font-size: 0.9rem; }
.success-banner-spam {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: var(--space-3);
}

.login-error {
    background: rgba(220, 38, 38, 0.08);
    border-left: 3px solid var(--color-error);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-4);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

/* =========================================================== *
 * Account-/Token-Kauf-Seite (Phase 0 Simulation)              *
 * =========================================================== */
.account-screen { align-items: flex-start; }
.account-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-accent);
    padding: var(--space-8);
    max-width: 620px;
    width: 100%;
    margin: 0 auto;
    box-shadow: 0 12px 28px -12px rgba(0,0,0,0.4);
}
.account-card .brand { display: inline-block; margin-bottom: var(--space-6); }

.sim-banner {
    background: rgba(232, 163, 25, 0.12);
    border: 1px solid var(--color-warning);
    border-left: 4px solid var(--color-warning);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-6);
}
.sim-banner strong {
    display: block;
    color: var(--color-accent-dark);
    letter-spacing: 0.04em;
    margin-bottom: var(--space-2);
}
.sim-banner p { margin: 0; font-size: 0.88rem; color: var(--color-text-secondary); }

.account-balance {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-5);
    background: var(--color-bg-light);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-6);
}
.account-balance-label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.account-balance-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-text-primary);
    font-family: ui-monospace, SFMono-Regular, monospace;
}
.account-balance-value.empty { color: var(--color-error); }

.account-h2 {
    font-size: 1rem;
    color: var(--color-text-primary);
    margin: var(--space-6) 0 var(--space-3);
}

.account-packages {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-3);
}
.account-package {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-3);
    text-align: center;
}
.account-package-tag {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    color: var(--color-accent-dark);
}
.account-package-tokens {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-text-primary);
    font-family: ui-monospace, SFMono-Regular, monospace;
}
.account-package .btn { font-size: 0.82rem; padding: var(--space-2) var(--space-3); }

.account-status {
    margin-top: var(--space-4);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}
.account-status.ok {
    background: rgba(22, 163, 74, 0.1);
    border-left: 3px solid var(--color-success);
    color: var(--color-text-secondary);
}
.account-status.error {
    background: rgba(220, 38, 38, 0.1);
    border-left: 3px solid var(--color-error);
    color: var(--color-text-secondary);
}

.account-ledger { list-style: none; padding: 0; margin: 0; }
.account-ledger-empty {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    padding: var(--space-2) 0;
}
.account-ledger-row {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: var(--space-4);
    align-items: center;
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.88rem;
}
.account-ledger-reason { color: var(--color-text-primary); }
.account-ledger-amount {
    font-family: ui-monospace, SFMono-Regular, monospace;
    font-weight: 700;
}
.account-ledger-amount.pos { color: var(--color-success); }
.account-ledger-amount.neg { color: var(--color-text-secondary); }
.account-ledger-date {
    color: var(--color-text-muted);
    font-size: 0.78rem;
    font-family: ui-monospace, SFMono-Regular, monospace;
}

@media (max-width: 560px) {
    .account-packages { grid-template-columns: 1fr; }
    .account-ledger-row { grid-template-columns: 1fr auto; }
    .account-ledger-date { display: none; }
}

/* =========================================================== *
 * Chat-Screen Layout                                          *
 * =========================================================== */
.chat-screen {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: var(--color-bg);
}

.chat-header {
    background: var(--color-bg-dark);
    color: var(--color-text-on-dark);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: var(--space-3) var(--space-6);
    gap: var(--space-6);
    position: sticky;
    top: 0;
    z-index: 10;
}
.chat-header .brand { color: var(--color-text-on-dark); }

.phase-strip {
    display: flex;
    gap: var(--space-4);
    align-items: center;
}
.phase-step {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.85rem;
    color: var(--color-text-on-dark-muted);
}
.phase-step .dot {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--color-border-dark);
    display: grid;
    place-items: center;
    font-size: 0.75rem;
    font-weight: 700;
}
.phase-step.done { color: var(--color-text-on-dark); }
.phase-step.done .dot { background: var(--color-success); color: white; }
.phase-step.current { color: var(--color-accent); font-weight: 600; }
.phase-step.current .dot { background: var(--color-accent); color: var(--color-bg-dark); }
.phase-step-divider {
    width: 24px;
    height: 1px;
    background: var(--color-border-dark);
}

.chat-header-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    justify-content: flex-end;
    font-size: 0.85rem;
}
.quota-badge {
    background: var(--color-border-dark);
    color: var(--color-text-on-dark);
    padding: var(--space-1) var(--space-3);
    border-radius: 999px;
    font-size: 0.78rem;
    font-family: ui-monospace, SFMono-Regular, monospace;
}
.quota-badge.full-access {
    background: var(--color-accent);
    color: var(--color-bg-dark);
    font-weight: 700;
}

.balance-badge {
    background: var(--color-border-dark);
    color: var(--color-text-on-dark);
    padding: var(--space-1) var(--space-3);
    border-radius: 999px;
    font-size: 0.78rem;
    font-family: ui-monospace, SFMono-Regular, monospace;
    text-decoration: none;
    white-space: nowrap;
    border: 1px solid transparent;
    transition: border-color 0.15s ease;
}
.balance-badge:hover { border-color: var(--color-accent); }
.balance-badge.empty {
    background: rgba(220, 38, 38, 0.18);
    color: #FCA5A5;
    border-color: var(--color-error);
}

.example-select {
    background: var(--color-border-dark);
    color: var(--color-text-on-dark);
    border: 1px solid var(--color-border-dark);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-family: inherit;
    font-size: 0.78rem;
    cursor: pointer;
}
.example-select:hover { border-color: var(--color-accent); }

.drawer-toggle {
    background: transparent;
    border: 1px solid var(--color-border-dark);
    color: var(--color-text-on-dark);
    border-radius: var(--radius-sm);
    padding: 4px 10px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.85rem;
}
.drawer-toggle:hover { border-color: var(--color-accent); color: var(--color-accent); }

.logout-form { margin: 0; display: inline; }

/* =========================================================== *
 * Chat-Body                                                   *
 * =========================================================== */
.chat-body {
    flex-grow: 1;
    overflow-y: auto;
    min-height: 0;  /* erlaubt das flex-child überhaupt erst zu shrinken & scrollen */
    padding: var(--space-6) var(--space-4);
}
.chat-inner {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

/* Bubbles */
.bubble {
    max-width: 80%;
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-md);
    position: relative;
}
.bubble-bot {
    align-self: flex-start;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-accent);
    margin-left: 38px;
}
.bubble-bot::before {
    content: '';
    position: absolute;
    left: -38px;
    top: var(--space-4);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-accent);
    border: 3px solid var(--color-bg);
}
.bubble-user {
    align-self: flex-end;
    background: var(--color-bg-light);
    color: var(--color-text-primary);
}

.bubble p { margin: 0; color: var(--color-text-secondary); }
.bubble p + p { margin-top: var(--space-3); }
.bubble-user p { color: var(--color-text-primary); }

.code-block {
    background: var(--color-bg-dark);
    color: var(--color-text-on-dark);
    font-family: ui-monospace, SFMono-Regular, monospace;
    font-size: 0.85rem;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-sm);
    margin-top: var(--space-3);
    overflow-x: auto;
    white-space: pre;
    line-height: 1.5;
}

.validator-pill {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: 0.75rem;
    font-weight: 700;
    padding: var(--space-1) var(--space-2);
    border-radius: 999px;
    margin-top: var(--space-3);
}
.validator-pill.ok      { background: rgba(22, 163, 74, 0.12); color: var(--color-success); }
.validator-pill.error   { background: rgba(220, 38, 38, 0.12); color: var(--color-error); }
.validator-pill.pending { background: rgba(148, 163, 184, 0.18); color: var(--color-text-secondary); }

/* Typing-Indikator */
.bubble-typing {
    align-self: flex-start;
    display: inline-flex;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius-md);
    position: relative;
    margin-left: 38px;
}
.bubble-typing::before {
    content: '';
    position: absolute;
    left: -38px;
    top: var(--space-3);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-accent);
    border: 3px solid var(--color-bg);
}
.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-text-muted);
    animation: typing-pulse 1.2s ease-in-out infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.15s; }
.typing-dot:nth-child(3) { animation-delay: 0.3s; }
@keyframes typing-pulse {
    0%, 60%, 100% { opacity: 0.3; transform: scale(0.8); }
    30% { opacity: 1; transform: scale(1.1); }
}

/* Error-Bubble (Quota, Login-expired) */
.bubble-error {
    align-self: stretch;
    background: rgba(220, 38, 38, 0.04);
    border: 1px solid rgba(220, 38, 38, 0.2);
    border-left: 3px solid var(--color-error);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-md);
    max-width: 100%;
}
.bubble-error p { margin: 0; color: var(--color-text-secondary); font-size: 0.92rem; }

.error-banner {
    background: rgba(220, 38, 38, 0.08);
    border-left: 3px solid var(--color-error);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-sm);
    margin: var(--space-3) 0;
}
.error-banner strong { display: block; margin-bottom: var(--space-2); color: var(--color-error); }
.error-banner p { margin: 0; color: var(--color-text-secondary); font-size: 0.9rem; }
.error-banner .btn { margin-top: var(--space-3); }

/* System-/Welcome-Hinweis */
.bubble-system {
    align-self: stretch;
    background: rgba(232, 163, 25, 0.08);
    border-left: 3px solid var(--color-accent);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* =========================================================== *
 * End-of-Interview Action-Karten                              *
 * =========================================================== */
.end-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5);
    margin-top: var(--space-4);
}
.end-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-lg);
    padding: var(--space-5) var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}
.end-card-tag {
    font-family: ui-monospace, SFMono-Regular, monospace;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-accent-dark);
    line-height: 1;
    background: rgba(232, 163, 25, 0.12);
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: grid;
    place-items: center;
    align-self: flex-start;
}
.end-card h4 { margin: 0; font-size: 1.1rem; color: var(--color-text-primary); }
.end-card p  { margin: 0; font-size: 0.9rem; color: var(--color-text-secondary); }
.end-card .btn { margin-top: auto; align-self: stretch; }

/* =========================================================== *
 * Chat-Footer (Input)                                         *
 * =========================================================== */
.chat-footer {
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
    padding: var(--space-4) var(--space-6);
    position: sticky;
    bottom: 0;
}
.chat-input-row {
    display: flex;
    gap: var(--space-3);
    max-width: 800px;
    margin: 0 auto;
    align-items: flex-end;
}
.chat-textarea {
    flex-grow: 1;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.95rem;
    resize: none;
    max-height: 200px;
    line-height: 1.5;
}
.chat-textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(232, 163, 25, 0.18);
}
.input-hint {
    max-width: 800px;
    margin: var(--space-2) auto 0;
    font-size: 0.78rem;
    color: var(--color-text-muted);
}

/* =========================================================== *
 * Analyse-Overlay (Full-screen während MCSA-Call)             *
 * =========================================================== */
.analyzing-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 27, 45, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}
.analyzing-overlay[hidden] { display: none; }
.analyzing-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-10) var(--space-8);
    text-align: center;
    max-width: 380px;
    width: 90%;
}
.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spinner-spin 1s linear infinite;
    margin: 0 auto var(--space-5);
}
@keyframes spinner-spin { to { transform: rotate(360deg); } }
.analyzing-card h3 { font-size: 1.2rem; color: var(--color-text-primary); margin-bottom: var(--space-2); }
.analyzing-card p  { margin: 0; color: var(--color-text-secondary); }

/* =========================================================== *
 * DSL-Drawer (Hybrid-Erweiterung, nicht im Mockup)            *
 * =========================================================== */
.dsl-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 27, 45, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 50;
}
.dsl-drawer-overlay.open { opacity: 1; pointer-events: auto; }

.dsl-drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(540px, 92vw);
    background: var(--color-bg-dark);
    color: var(--color-text-on-dark);
    transform: translateX(100%);
    transition: transform 0.25s ease;
    display: flex;
    flex-direction: column;
    z-index: 60;
    box-shadow: -12px 0 32px -12px rgba(0,0,0,0.5);
}
.dsl-drawer.open { transform: translateX(0); }

.dsl-drawer-header {
    background: var(--color-border-dark);
    padding: var(--space-3) var(--space-5);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    border-bottom: 1px solid var(--color-border-dark);
}
.dsl-drawer-title {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-on-dark-muted);
    font-weight: 700;
}
.dsl-drawer-close {
    background: transparent;
    border: none;
    color: var(--color-text-on-dark);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 var(--space-2);
    line-height: 1;
}
.dsl-drawer-close:hover { color: var(--color-accent); }

.dsl-drawer-body {
    flex-grow: 1;
    overflow: auto;
    padding: var(--space-5);
}
.dsl-drawer-code {
    font-family: ui-monospace, SFMono-Regular, monospace;
    font-size: 0.85rem;
    white-space: pre;
    color: var(--color-text-on-dark);
    line-height: 1.55;
    margin: 0;
}
.dsl-drawer-empty {
    color: var(--color-text-on-dark-muted);
    font-style: italic;
    font-size: 0.9rem;
}

/* =========================================================== *
 * Mobile (<700px)                                             *
 * =========================================================== */
@media (max-width: 700px) {
    .phase-strip { gap: var(--space-2); font-size: 0.78rem; }
    .phase-step:not(.current) span:not(.dot) { display: none; }
    .chat-header { grid-template-columns: 1fr auto; gap: var(--space-3); padding: var(--space-3); }
    .chat-header-right .quota-badge { display: none; }
    .chat-header-right .example-select { display: none; }
    .end-cards { grid-template-columns: 1fr; }
    .bubble { max-width: 92%; }
    .bubble-bot { margin-left: 0; }
    .bubble-bot::before, .bubble-typing::before { display: none; }

    .dsl-drawer {
        top: auto;
        right: 0;
        left: 0;
        bottom: 0;
        width: 100%;
        height: 80vh;
        transform: translateY(100%);
        border-top-left-radius: var(--radius-lg);
        border-top-right-radius: var(--radius-lg);
    }
    .dsl-drawer.open { transform: translateY(0); }
}