/* ============================================================
   DPP Labels — Component Styles (Avery Europe Brand)
   Cards, buttons, forms, badges, breadcrumbs
   ============================================================ */

/* --- Buttons — Sharp edges, Avery palette --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 14px 26px;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 700;
    line-height: 1;
    transition: transform var(--transition-fast), background var(--transition-base), box-shadow var(--transition-base);
    white-space: nowrap;
    text-decoration: none;
    border: none;
    cursor: pointer;
}

/* Primär: Avery Blue fill, Paper text */
.btn--primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

.btn--primary:hover {
    color: var(--color-text-inverse);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(10, 74, 143, 0.35);
}

/* Reverse primary on dark sections */
.section--dark .btn--primary,
.section--gradient .btn--primary {
    background: var(--color-text-inverse);
    color: var(--color-primary);
}

/* Secondary: transparent on dark, Paper border */
.btn--secondary {
    background: transparent;
    color: var(--color-text-inverse);
    border: 2px solid rgba(247, 245, 239, 0.35);
}

.btn--secondary:hover {
    background: rgba(247, 245, 239, 0.1);
    border-color: rgba(247, 245, 239, 0.7);
    color: var(--color-text-inverse);
    transform: translateY(-2px);
}

/* Accent CTA: Avery Yellow, SPARSAM verwenden (max ~5%) */
.btn--accent {
    background: var(--color-accent-warm);
    color: var(--color-primary);
}

.btn--accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(252, 199, 0, 0.4);
    color: var(--color-primary);
}

/* Outline: Avery Blue border on Paper bg */
.btn--outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn--outline:hover {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    transform: translateY(-2px);
}

/* Dark background outline */
.section--dark .btn--outline {
    color: var(--color-text-inverse);
    border-color: var(--color-text-inverse);
}

.section--dark .btn--outline:hover {
    background: var(--color-text-inverse);
    color: var(--color-primary);
}

.btn--dark {
    background: var(--color-surface-dark);
    color: var(--color-text-inverse);
}

.btn--dark:hover {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    transform: translateY(-2px);
}

.btn--lg {
    padding: 16px 32px;
    font-size: var(--font-size-lg);
}

.btn--sm {
    padding: 8px 16px;
    font-size: var(--font-size-sm);
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}


/* --- Cards — Sharp edges, Mist border, Avery palette --- */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: 28px;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card--link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.card--link:hover {
    color: inherit;
}

/* Card tag — Avery Blue uppercase pill (sharp) */
.card__badge {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 4px 12px;
    margin-bottom: var(--space-3);
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

/* Category-specific badge colors (Avery-palette aligned) */
.card__badge--grundlagen { background: var(--color-primary); color: var(--color-text-inverse); }
.card__badge--standards { background: var(--color-surface-dark); color: var(--color-text-inverse); }
.card__badge--retail { background: var(--color-primary); color: var(--color-text-inverse); }
.card__badge--business-case { background: var(--square-magenta); color: #fff; }
.card__badge--qr { background: var(--color-primary); color: var(--color-text-inverse); }
.card__badge--nfc { background: var(--color-accent-warm); color: var(--color-primary); }
.card__badge--kombi { background: var(--square-cyan); color: #fff; }
.card__badge--software { background: var(--color-surface-dark); color: var(--color-text-inverse); }
.card__badge--coming-soon { background: var(--color-border); color: var(--color-text-muted); }

.card__title {
    font-family: var(--font-family); /* Montserrat for card titles */
    font-size: var(--font-size-xl);
    font-weight: 700;
    text-transform: none;
    color: var(--color-primary);
    margin-bottom: var(--space-2);
    line-height: var(--line-height-snug);
}

.card--link:hover .card__title {
    color: var(--color-primary-hover);
}

.card__text {
    font-size: 15px;
    color: var(--color-text-muted);
    line-height: var(--line-height-normal);
}

.card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--space-4);
    background: var(--color-bg);
}

.card__arrow {
    position: absolute;
    bottom: var(--space-6);
    right: var(--space-6);
    width: 32px;
    height: 32px;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: all var(--transition-base);
    font-size: var(--font-size-sm);
}

.card--link:hover .card__arrow {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    transform: translateX(2px);
}


/* --- Whitepaper Card --- */
.card--whitepaper {
    border-left: 4px solid var(--color-primary);
    padding: var(--space-6);
}

.card--whitepaper .card__title {
    font-size: var(--font-size-lg);
    font-weight: 700;
}


/* --- Product Card --- */
.card--product {
    padding: var(--space-6);
}

.card--product .card__icon {
    background: rgba(10, 74, 143, 0.08);
    color: var(--color-primary);
}

.card--product.card--nfc .card__icon {
    background: rgba(252, 199, 0, 0.12);
    color: var(--color-accent-warm);
}


/* --- Industry Card --- */
.card--industry {
    text-align: center;
    padding: var(--space-10) var(--space-6);
}

.card--industry .card__icon {
    width: 64px;
    height: 64px;
    font-size: 2rem;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--space-4);
    background: var(--color-bg);
}


/* --- Form Elements --- */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 12px 16px;
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: var(--color-surface);
    border: 1.5px solid var(--color-border);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(10, 74, 143, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-text-light);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%235B6B7B' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
    padding-right: 2.5rem;
}

.form-error {
    font-size: var(--font-size-sm);
    color: var(--color-error);
    margin-top: var(--space-1);
}

.form-hint {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-1);
}

/* Inline form (newsletter) */
.form-inline {
    display: flex;
    gap: var(--space-3);
    max-width: 480px;
}

.form-inline .form-input {
    flex: 1;
}


/* --- Badges / Pills --- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

.badge--primary { background: var(--color-primary); color: var(--color-text-inverse); }
.badge--accent { background: var(--square-cyan); color: #fff; }
.badge--warm { background: var(--color-accent-warm); color: var(--color-primary); }
.badge--success { background: #10b981; color: #fff; }


/* --- Breadcrumb --- */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    padding: var(--space-4) 0;
}

.breadcrumb a {
    color: var(--color-text-inverse-muted);
    text-decoration: none;
}

.breadcrumb a:hover {
    color: var(--color-accent-warm);
}

.breadcrumb__separator {
    color: var(--color-text-inverse-muted);
    font-size: var(--font-size-xs);
}

.breadcrumb__current {
    color: var(--color-text-inverse);
    font-weight: 700;
}


/* --- Feature Strip --- */
.feature-strip {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-8);
    padding: var(--space-6) 0;
}

.feature-strip__item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--color-text-muted);
}

.feature-strip__icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 74, 143, 0.08);
    color: var(--color-primary);
    font-size: var(--font-size-sm);
}


/* --- Alert / Toast --- */
.alert {
    padding: var(--space-4) var(--space-6);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-4);
}

.alert--success {
    background: #d1fae5;
    color: #065f46;
    border-left: 4px solid #10b981;
}

.alert--error {
    background: #fee2e2;
    color: #991b1b;
    border-left: 4px solid #ef4444;
}

.alert--info {
    background: rgba(0, 174, 239, 0.08);
    color: var(--color-primary);
    border-left: 4px solid var(--square-cyan);
}


/* --- Responsive (components) --- */
@media (max-width: 768px) {
    .btn-group {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-group .btn {
        text-align: center;
    }

    .form-inline {
        flex-direction: column;
    }

    .feature-strip {
        gap: var(--space-4);
    }

    .feature-strip__item {
        font-size: var(--font-size-xs);
    }

    .card {
        padding: var(--space-6);
    }
}