/* ============================================================
   Röstschmiede Neu-Ulm — CI Design System
   Minimalistisch · Industriell · Premium Specialty Coffee
   ============================================================ */

/* --- Custom Properties --- */
:root {
    --black: #1A1A1A;
    --black-soft: #2D2D2D;
    --white: #FFFFFF;
    --off-white: #F7F4F0;
    --warm-bg: #F0EBE3;

    --wood: #B8956A;
    --wood-light: #D4BFA6;
    --wood-muted: #E8DDD0;
    --espresso: #3C2415;

    --gray-100: #F5F5F5;
    --gray-200: #E8E8E8;
    --gray-300: #D1D1D1;
    --gray-400: #A0A0A0;
    --gray-500: #6B6B6B;
    --gray-600: #4A4A4A;

    --danger: #C0392B;
    --danger-bg: #FDF0EE;
    --success: #2E7D4F;
    --warning-bg: #FFF8E1;
    --warning: #F57F17;

    --font-display: 'Bebas Neue', 'Arial Narrow', sans-serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);
}

/* --- Reset --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--off-white);
    color: var(--black);
    line-height: 1.6;
    min-height: 100vh;
}

/* --- Screens & Tabs --- */
.screen { display: none; }
.screen.active { display: block; }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ============================================================
   LOGIN
   ============================================================ */
.login-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
    background: var(--black);
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
}

.login-logo {
    text-align: center;
    margin-bottom: var(--space-2xl);
    position: relative;
}

.logo-img {
    width: 280px;
    height: auto;
    filter: invert(1);
    user-select: none;
}

.login-logo .tagline {
    color: var(--gray-500);
    font-size: 0.75rem;
    margin-top: var(--space-lg);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 400;
}

.logo-divider {
    width: 40px;
    height: 1px;
    background: var(--gray-500);
    margin: var(--space-lg) auto;
}

.login-container form {
    width: 100%;
    max-width: 380px;
    position: relative;
}

.login-container .form-group {
    margin-bottom: var(--space-md);
}

.login-container .form-group label {
    display: block;
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--gray-400);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.login-container .form-group input {
    width: 100%;
    padding: 0.85rem 0;
    border: none;
    border-bottom: 1px solid var(--gray-600);
    font-size: 0.95rem;
    font-family: var(--font-body);
    background: transparent;
    color: var(--white);
    transition: border-color 0.3s ease;
    border-radius: 0;
}

.login-container .form-group input::placeholder {
    color: var(--gray-600);
}

.login-container .form-group input:focus {
    outline: none;
    border-bottom-color: var(--wood);
}

.login-container .btn-primary {
    width: 100%;
    margin-top: var(--space-lg);
    padding: 0.9rem;
    background: var(--white);
    color: var(--black);
    border: none;
    font-family: var(--font-display);
    font-size: 0.95rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 0;
}

.login-container .btn-primary:hover {
    background: var(--wood);
    color: var(--white);
}

.toggle-auth {
    text-align: center;
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: var(--space-lg);
}

.toggle-auth a {
    color: var(--wood);
    font-weight: 500;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.toggle-auth a:hover {
    border-bottom-color: var(--wood);
}

.error-msg {
    color: #E74C3C;
    font-size: 0.8rem;
    text-align: center;
    margin-top: var(--space-md);
    min-height: 1.2em;
}

/* ============================================================
   HEADER
   ============================================================ */
header {
    background: var(--white);
    padding: 0 var(--space-2xl);
    height: 64px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--gray-200);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.header-logo-img {
    height: 28px;
    width: auto;
    user-select: none;
}

.header-divider {
    width: 1px;
    height: 24px;
    background: var(--gray-300);
}

.header-sub {
    font-size: 0.7rem;
    color: var(--gray-400);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    font-weight: 400;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.user-email {
    font-size: 0.8rem;
    color: var(--gray-500);
    font-weight: 400;
}

#logout-btn {
    padding: 0.45rem 1rem;
    background: transparent;
    color: var(--black);
    border: 1px solid var(--gray-300);
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.2s;
    border-radius: var(--radius-sm);
}

#logout-btn:hover {
    border-color: var(--black);
    background: var(--black);
    color: var(--white);
}

/* ============================================================
   TAB NAVIGATION
   ============================================================ */
.tab-nav {
    display: flex;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 0 var(--space-2xl);
    position: sticky;
    top: 64px;
    z-index: 99;
}

.tab-btn {
    padding: 0.85rem var(--space-xl);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    font-family: var(--font-display);
    font-size: 0.9rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gray-400);
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn:hover {
    color: var(--black);
}

.tab-btn.active {
    color: var(--black);
    border-bottom-color: var(--black);
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
main {
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--space-2xl);
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
    background: var(--white);
    border-radius: var(--radius-sm);
    padding: var(--space-xl);
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
}

.card h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--space-lg);
    color: var(--black);
    font-weight: 400;
}

/* ============================================================
   FORM ELEMENTS
   ============================================================ */
.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--gray-500);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-family: var(--font-body);
    transition: all 0.2s;
    background: var(--white);
    color: var(--black);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--black);
    box-shadow: 0 0 0 1px var(--black);
}

.form-group input::placeholder {
    color: var(--gray-400);
}

input[type="number"] {
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm) var(--space-md);
}

.form-actions {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--gray-200);
}

.btn {
    padding: 0.65rem 1.5rem;
    border: none;
    font-family: var(--font-display);
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
    border-radius: var(--radius-sm);
}

.btn-primary {
    background: var(--black);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--espresso);
}

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

main .btn-outline {
    background: transparent;
    color: var(--gray-500);
    border: 1px solid var(--gray-300);
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: none;
}

main .btn-outline:hover {
    border-color: var(--black);
    color: var(--black);
}

/* ============================================================
   FILE UPLOAD
   ============================================================ */
.file-upload-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.file-upload-wrapper input[type="file"] {
    width: auto;
    font-size: 0.8rem;
    padding: 0.4rem;
    border: 1px dashed var(--gray-300);
    border-radius: var(--radius-sm);
    background: var(--gray-100);
    cursor: pointer;
}

.file-upload-wrapper input[type="file"]:hover {
    border-color: var(--wood);
    background: var(--warm-bg);
}

.file-name {
    font-size: 0.75rem;
    color: var(--gray-400);
}

/* ============================================================
   TABLE
   ============================================================ */
.list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.list-header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.btn-print {
    padding: 0.5rem 1rem;
    background: transparent;
    color: var(--black);
    border: 1px solid var(--gray-300);
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.btn-print:hover {
    border-color: var(--black);
    background: var(--black);
    color: var(--white);
}

.search-bar input {
    padding: 0.5rem 0.85rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-family: var(--font-body);
    width: 240px;
    transition: border-color 0.2s;
}

.search-bar input:focus {
    outline: none;
    border-color: var(--black);
    box-shadow: 0 0 0 1px var(--black);
}

.table-wrapper {
    overflow-x: auto;
    margin-top: var(--space-lg);
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead th {
    text-align: left;
    font-size: 0.6rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--gray-400);
    padding: var(--space-sm) var(--space-sm);
    border-bottom: 2px solid var(--black);
    white-space: nowrap;
}

tbody td {
    padding: 0.85rem var(--space-sm);
    border-bottom: 1px solid var(--gray-100);
    font-size: 0.875rem;
    vertical-align: middle;
}

tbody tr {
    transition: background 0.15s;
}

tbody tr:hover {
    background: var(--off-white);
}

td.mono {
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

/* Roast table: Monospace for temps and weights */
#roast-table td:nth-child(3),
#roast-table td:nth-child(4),
#roast-table td:nth-child(5) {
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.loss-badge {
    display: inline-block;
    padding: 0.15rem 0.55rem;
    border-radius: 2px;
    font-size: 0.7rem;
    font-family: var(--font-mono);
    font-weight: 500;
    background: var(--warm-bg);
    color: var(--espresso);
    letter-spacing: 0.5px;
}

.invoice-link {
    color: var(--wood);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 500;
    transition: color 0.2s;
    white-space: nowrap;
}

.invoice-link:hover {
    color: var(--espresso);
}

.no-invoice {
    color: var(--gray-400);
}

.action-btns {
    display: flex;
    gap: 0.25rem;
}

.btn-icon {
    width: 30px;
    height: 30px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
    background: transparent;
    color: var(--gray-400);
}

.btn-icon:hover {
    background: var(--gray-100);
    color: var(--black);
    border-color: var(--gray-200);
}

.btn-icon.delete:hover {
    background: var(--danger-bg);
    color: var(--danger);
    border-color: transparent;
}

.no-data {
    text-align: center;
    color: var(--gray-400);
    padding: var(--space-3xl) var(--space-md);
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

/* ============================================================
   REORDER SUGGESTIONS
   ============================================================ */
.suggestions-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--space-2xl);
    padding-top: var(--space-lg);
}

.suggestions-container h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
    color: var(--black);
    font-weight: 400;
}

.suggestion-card {
    background: var(--warm-bg);
    border-left: 3px solid var(--wood);
    border-radius: var(--radius-sm);
    padding: var(--space-md) var(--space-lg);
    margin-bottom: var(--space-sm);
}

.suggestion-card.urgent {
    background: var(--warning-bg);
    border-left-color: var(--warning);
}

.suggestion-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xs);
}

.suggestion-item strong {
    font-size: 0.9rem;
}

.suggestion-badge {
    display: inline-block;
    padding: 0.1rem 0.5rem;
    border-radius: 2px;
    font-size: 0.6rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.suggestion-badge.soon {
    background: var(--wood-muted);
    color: var(--espresso);
}

.suggestion-badge.urgent {
    background: #FFCC80;
    color: #E65100;
}

.suggestion-details {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.suggestion-details strong {
    color: var(--black);
    font-size: 0.8rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
    text-align: center;
    padding: var(--space-2xl) var(--space-xl);
    color: var(--gray-400);
    font-size: 0.7rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-top: 1px solid var(--gray-200);
    margin-top: var(--space-xl);
}

/* ============================================================
   SPINNER
   ============================================================ */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 1.5px solid rgba(255,255,255,0.2);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    vertical-align: middle;
    margin-right: 0.5rem;
}

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

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
    .form-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    header {
        padding: 0 var(--space-md);
        height: auto;
        padding-top: var(--space-md);
        padding-bottom: var(--space-md);
        flex-direction: column;
        gap: var(--space-sm);
    }

    .header-left {
        flex-direction: column;
        text-align: center;
        gap: var(--space-xs);
    }

    .header-divider { display: none; }

    .header-right {
        width: 100%;
        justify-content: center;
    }

    .user-email { display: none; }

    .tab-nav {
        padding: 0 var(--space-md);
        top: auto;
        position: relative;
    }

    .tab-btn {
        flex: 1;
        text-align: center;
        padding: 0.7rem var(--space-sm);
        font-size: 0.8rem;
    }

    main {
        padding: var(--space-md);
    }

    .card {
        padding: var(--space-md);
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .list-header {
        flex-direction: column;
        align-items: stretch;
    }

    .search-bar input {
        width: 100%;
    }

    .logo-img {
        width: 200px;
    }

    .list-header-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-print { width: 100%; }

    .suggestions-container {
        padding: var(--space-sm) var(--space-md);
    }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
    body { background: white; }

    #login-screen,
    .add-roast-section,
    .search-bar,
    .btn-print,
    .action-btns,
    #logout-btn,
    .user-email,
    .tab-nav,
    .suggestions-container,
    footer { display: none !important; }

    /* Hide form sections */
    .card:has(form) { display: none !important; }

    header {
        position: static;
        border-bottom: 2px solid #000;
        print-color-adjust: exact;
        -webkit-print-color-adjust: exact;
    }

    main { padding: 0; max-width: 100%; }

    .tab-content { display: block !important; }

    .card {
        box-shadow: none;
        border: none;
        padding: 0;
    }

    table { font-size: 0.8rem; }

    thead th {
        border-bottom: 2px solid #000;
        color: #000;
    }

    tbody td { border-bottom: 1px solid #ccc; }

    .loss-badge,
    .suggestion-badge {
        background: #eee;
        print-color-adjust: exact;
        -webkit-print-color-adjust: exact;
    }
}