/*!
 * Energieberatung Stiefel - Komplette zentrale CSS Datei
 * Alle Seiten-spezifischen Styles aus allen HTML-Dateien
 */

/* ===== UTILITY KLASSEN ===== */
.text-primary { color: var(--color-primary); }
.text-accent { color: var(--color-accent); }
.bg-primary { background-color: var(--color-primary); }
.bg-accent { background-color: var(--color-accent); }
.border-primary { border-color: var(--color-primary); }
.border-accent { border-color: var(--color-accent); }

/* ===== BUTTONS ===== */
.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border: 1px solid var(--color-primary);
}
.btn-primary:hover {
    background-color: var(--color-primary-hover);
}
.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 1px solid var(--color-white);
}
.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}
.btn-accent {
    background-color: var(--color-accent);
    color: var(--color-white);
}
.btn-accent:hover {
    background-color: var(--color-accent-hover);
}
.accent-border {
    border-color: var(--color-accent);
}

/* ===== NAVIGATION ===== */
.nav-logo {
    color: var(--color-primary);
}
.nav-link {
    color: var(--color-primary);
}
.nav-mobile-button {
    color: var(--color-accent);
}
.nav-mobile-contact {
    color: var(--color-accent);
}

/* ===== HERO SECTION ===== */
.hero-bg {
    background: var(--color-hero-bg);
    position: relative;
}
.hero-accent {
    color: var(--color-accent);
}

/* ===== CONTENT SECTIONS ===== */
.section-heading {
    color: var(--color-primary);
}
.service-link {
    color: var(--color-primary);
}
.advantage-icon {
    color: var(--color-primary);
}
.advantage-heading {
    color: var(--color-primary);
}
.cta-button {
    background-color: var(--color-primary);
    color: var(--color-white);
}
.cta-button:hover {
    background-color: var(--color-primary-hover);
}
.process-heading {
    color: var(--color-primary);
}

/* ===== KOMPONENTEN ===== */
.process-step {
    position: relative;
    padding-left: 3.5rem;
    padding-bottom: 2.5rem;
}
.process-step:not(:last-child)::before {
    content: '';
    position: absolute;
    left: 1.5rem;
    top: 3rem;
    bottom: -1rem;
    width: 2px;
    background-color: var(--color-gray-300);
    z-index: 0;
}
.process-icon {
    position: absolute;
    left: 0;
    top: 0;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 1.25rem;
    font-weight: bold;
    z-index: 1;
    box-shadow: 0 0 0 4px var(--color-white);
}
.process-step h3 { color: var(--color-gray-800); }
.process-step p { color: var(--color-gray-600); }

/* ===== FOOTER ===== */
.footer-logo {
    color: var(--color-accent);
}
.footer-icon {
    color: var(--color-accent);
}
.footer-chevron {
    color: var(--color-accent);
}

/* ===== SCROLL TO TOP ===== */
.scroll-to-top {
    background-color: var(--color-primary);
}
.scroll-to-top:hover {
    background-color: var(--color-primary-hover);
}

/* ===== ABOUT.HTML SPEZIFISCHE STYLES ===== */
.contact-icon {
    background-color: var(--color-primary);
    color: var(--color-white);
}
.contact-info-icon {
    background-color: var(--color-primary);
    color: var(--color-white);
}
.cert-icon {
    color: var(--color-primary);
}
.check-icon {
    color: var(--color-primary);
}

/* ===== KONTAKT.HTML SPEZIFISCHE STYLES ===== */
.form-focus:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(12, 15, 132, 0.1);
}
.form-button {
    background-color: var(--color-primary);
    color: var(--color-white);
}
.form-button:hover {
    background-color: var(--color-primary-hover);
}

/* ===== LEISTUNGEN.HTML SPEZIFISCHE STYLES ===== */
.service-link-primary {
    color: var(--color-primary);
}
.service-link-primary:hover {
    color: var(--color-primary-hover);
}
.service-link-secondary {
    color: var(--color-secondary);
}
.service-link-secondary:hover {
    opacity: 0.8;
}
.benefit-primary {
    background-color: rgba(12, 15, 132, 0.1);
    color: var(--color-primary);
}
.benefit-secondary {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-secondary);
}
.benefit-indigo {
    background-color: rgba(99, 102, 241, 0.1);
    color: #6366f1;
}
.cta-bg {
    background: var(--color-hero-bg);
}

/* ===== HYDRAULISCHER ABGLEICH & SANIERUNGSFAHRPLAN SPEZIFISCHE STYLES ===== */
.benefit-icon {
    color: var(--color-secondary);
}
.calculator-input {
    border: 2px solid var(--color-gray-300);
    border-radius: 8px;
    padding: 12px;
    font-size: 16px;
}
.calculator-input:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(12, 15, 132, 0.1);
}
.calculator-result {
    background: linear-gradient(135deg, var(--color-secondary), #059669);
    color: white;
    border-radius: 12px;
    padding: 24px;
}
.comparison-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    padding: 20px;
    border: 2px solid transparent;
}
.comparison-card.highlighted {
    border-color: var(--color-secondary);
    transform: scale(1.02);
}