/* =========================================
   STYLE.CSS - rümpelungen.de
   ========================================= */

:root {
    /* Colors */
    --primary: #0a2540;        /* Deep Blue */
    --primary-light: #16406e;
    --accent: #f59e0b;         /* Gold/Orange */
    --accent-hover: #d97706;
    --whatsapp: #25D366;
    --whatsapp-hover: #128C7E;
    
    --text-main: #334155;
    --text-muted: #64748b;
    --heading: #0f172a;
    
    --bg-main: #ffffff;
    --bg-light: #f8fafc;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    
    /* Typography */
    --font-main: 'Inter', sans-serif;
    
    /* Spacing & Sizes */
    --radius: 8px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
    
    --container-width: 1200px;
    --header-height: 80px;
}

/* ================== RESET & BASE ================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    color: var(--text-main);
    background-color: var(--bg-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

img, svg {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

/* ================== LAYOUT ================== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.max-w-800 {
    max-width: 800px;
}

.section {
    padding: 6rem 0;
}

.bg-light {
    background-color: var(--bg-light);
}

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

.mt-4 { margin-top: 2rem; }
.gap-4 { gap: 1rem; }
.flex-wrap { flex-wrap: wrap; }
.flex-center { display: flex; align-items: center; justify-content: center; }

/* ================== TYPOGRAPHY ================== */
.subtitle {
    display: inline-block;
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    font-size: 2.5rem;
}

/* ================== BUTTONS ================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: var(--radius);
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-align: center;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-primary {
    background-color: var(--accent);
    color: #fff;
    box-shadow: var(--shadow);
}
.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-whatsapp {
    background-color: var(--whatsapp);
    color: #fff;
    box-shadow: var(--shadow);
}
.btn-whatsapp:hover {
    background-color: var(--whatsapp-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-white {
    background-color: #fff;
    color: var(--primary);
}
.btn-white:hover {
    background-color: var(--bg-light);
    transform: translateY(-2px);
}

.icon {
    width: 20px;
    height: 20px;
}

/* ================== HEADER/NAV ================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--heading);
}

.logo-icon {
    font-size: 1.75rem;
}

.text-primary {
    color: var(--primary);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--text-main);
}
.nav-link:hover {
    color: var(--accent);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
}
.mobile-menu-btn span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--heading);
    border-radius: 3px;
    transition: var(--transition);
}

.mobile-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: #fff;
    padding: 2rem;
    box-shadow: var(--shadow);
    transform: translateY(-150%);
    transition: transform 0.4s cubic-bezier(0.77, 0, 0.175, 1);
    z-index: 999;
}
.mobile-nav.active {
    transform: translateY(0);
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.mobile-nav-link {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--heading);
    display: block;
}
.mobile-cta {
    color: var(--accent);
    margin-top: 1rem;
}

/* ================== HERO ================== */
.hero {
    position: relative;
    padding: 160px 0 100px;
    background-color: var(--primary);
    background-image: url('../images/hero.png');
    background-size: cover;
    background-position: center;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 37, 64, 0.9) 0%, rgba(22, 64, 110, 0.7) 100%);
    z-index: 1;
}

.hero-container {
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 800px;
    color: #fff;
    text-align: center;
    margin: 0 auto;
}

.hero .badge {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(5px);
}

.hero-title {
    color: #fff;
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}
.hero-title span {
    color: var(--accent);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2.5rem;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}
.hero-feature svg {
    width: 24px;
    height: 24px;
    color: var(--accent);
}

/* ================== GRID & CARDS ================== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background-color: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: inline-block;
}

/* ================== SEO SECTION ================== */
/* ================== SEO SECTION (NEW ELEGANT LAYOUT) ================== */
.seo-article {
    max-width: 1000px;
    margin: 0 auto;
}

.seo-article-header {
    margin-bottom: 3rem;
}

.seo-intro {
    font-size: 1.125rem;
    color: var(--text-main);
    max-width: 800px;
    margin: 0 auto;
}

.seo-intro strong {
    color: var(--primary);
    font-weight: 600;
}

.seo-content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.seo-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.seo-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--accent);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.3s ease;
}

.seo-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.seo-card:hover::before {
    transform: scaleY(1);
    transform-origin: top;
}

.seo-card-icon {
    font-size: 2.5rem;
    margin-bottom: 1.25rem;
    display: inline-block;
    padding: 1rem;
    background-color: rgba(245, 158, 11, 0.1);
    border-radius: 50%;
    line-height: 1;
}

.seo-card h3 {
    font-size: 1.25rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.seo-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

.seo-card strong {
    color: var(--heading);
    font-weight: 600;
}

/* ================== CTA BANNER ================== */
.cta-banner {
    background-color: var(--primary);
    color: #fff;
    padding: 5rem 0;
    position: relative;
    background-image: radial-gradient(circle at center, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 70%);
}

.cta-banner h2 {
    color: #fff;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}
.cta-banner p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto;
}

/* ================== FAQ ================== */
.accordion {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.accordion-item {
    background-color: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.accordion-header {
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    background-color: #fff;
    transition: var(--transition);
}
.accordion-header h3 {
    margin: 0;
    font-size: 1.125rem;
}
.accordion-header .icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--accent);
    transition: var(--transition);
}

.accordion-header:hover {
    background-color: var(--bg-light);
}

.accordion-item.active .accordion-header .icon {
    transform: rotate(45deg);
}
.accordion-item.active .accordion-header {
    border-bottom: 1px solid var(--border);
}

.accordion-body {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    background-color: #fafafa;
}
.accordion-item.active .accordion-body {
    padding: 1.5rem;
    max-height: 500px; /* arbitrary max height */
}

/* ================== CONTACT ================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-list {
    margin-top: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}
.icon-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-form-wrapper {
    background-color: #fff;
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--heading);
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font-main);
    font-size: 1rem;
    color: var(--text-main);
    background-color: #fff;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}
.checkbox-group input {
    margin-top: 0.3rem;
}
.checkbox-group label {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 400;
}

.form-status {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--radius);
    display: none;
    font-weight: 500;
}
.form-status.success {
    display: block;
    background-color: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}
.form-status.error {
    display: block;
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* Spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ================== FOOTER ================== */
.footer {
    background-color: var(--primary);
    color: rgba(255, 255, 255, 0.7);
    padding: 5rem 0 2rem;
}

.footer h3 {
    color: #fff;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.footer-links a {
    color: rgba(255, 255, 255, 0.7);
}
.footer-links a:hover {
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    font-size: 0.875rem;
}

/* ================== MEDIA QUERIES ================== */
@media (max-width: 992px) {
    .seo-grid, .contact-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .hero-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav-list { display: none; }
    .mobile-menu-btn { display: flex; }
    
    .hero { padding: 120px 0 80px; }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .contact-form-wrapper {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .hero-features {
        flex-direction: column;
        align-items: center;
    }
    .hero-title {
        font-size: 2rem;
    }
}

/* ================== SHARE SECTION ================== */
.share-section {
    padding: 4rem 0;
    border-top: 1px solid var(--border);
    background-color: var(--bg-light);
}
.share-section h2 { margin-bottom: 0.5rem; }
.share-section p { color: var(--text-muted); margin-bottom: 2.5rem; font-size: 1.1rem; }
.share-grid {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    max-width: 900px;
    margin: 0 auto;
}
.share-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100px;
    height: 100px;
    border-radius: var(--radius-lg);
    background: #fff;
    border: 1px solid var(--border);
    color: var(--text-main);
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    text-decoration: none !important;
}

.share-btn img {
    width: 32px;
    height: 32px;
    transition: var(--transition);
    filter: invert(0.3) sepia(1) saturate(0) hue-rotate(0deg); /* generic soft grey filter for icons */
}
/* Colors on hover */
.share-btn.fb:hover { border-color: #1877F2; background: rgba(24, 119, 242, 0.05); color: #1877F2; }
.share-btn.fb:hover img { filter: invert(34%) sepia(87%) saturate(1633%) hue-rotate(200deg) brightness(97%) contrast(98%); }

.share-btn.x:hover { border-color: #000; background: rgba(0, 0, 0, 0.05); color: #000; }
.share-btn.x:hover img { filter: invert(0); }

.share-btn.in:hover { border-color: #0A66C2; background: rgba(10, 102, 194, 0.05); color: #0A66C2; }
.share-btn.in:hover img { filter: invert(30%) sepia(80%) saturate(1814%) hue-rotate(188deg) brightness(91%) contrast(97%); }

.share-btn.wa:hover { border-color: #25D366; background: rgba(37, 211, 102, 0.05); color: #25D366; }
.share-btn.wa:hover img { filter: invert(60%) sepia(47%) saturate(769%) hue-rotate(85deg) brightness(96%) contrast(88%); }

.share-btn.tg:hover { border-color: #26A5E4; background: rgba(38, 165, 228, 0.05); color: #26A5E4; }
.share-btn.tg:hover img { filter: invert(56%) sepia(86%) saturate(2333%) hue-rotate(174deg) brightness(98%) contrast(89%); }

.share-btn.msr:hover { border-color: #00B2FF; background: rgba(0, 178, 255, 0.05); color: #00B2FF; }
.share-btn.msr:hover img { filter: invert(48%) sepia(96%) saturate(1518%) hue-rotate(180deg) brightness(101%) contrast(105%); }

.share-btn.gpt:hover { border-color: #10a37f; background: rgba(16, 163, 127, 0.05); color: #10a37f; }
.share-btn.gpt:hover img { filter: invert(40%) sepia(87%) saturate(347%) hue-rotate(113deg) brightness(94%) contrast(89%); }

.share-btn.ig:hover { border-color: #E4405F; background: rgba(228, 64, 95, 0.05); color: #E4405F; }
.share-btn.ig:hover img { filter: none; } /* Ig will need full color if we drop filter */

.share-btn.tt:hover { border-color: #000; background: rgba(0, 0, 0, 0.05); color: #000; }
.share-btn.tt:hover img { filter: invert(0); }

.share-btn.yt:hover { border-color: #FF0000; background: rgba(255, 0, 0, 0.05); color: #FF0000; }
.share-btn.yt:hover img { filter: invert(16%) sepia(97%) saturate(7024%) hue-rotate(357deg) brightness(99%) contrast(116%); }

.share-btn.sc:hover { border-color: #FFFC00; background: rgba(255, 252, 0, 0.1); color: #beb900; }
.share-btn.sc:hover img { filter: none; }

.share-btn.copy:hover { border-color: var(--primary); background: var(--bg-light); color: var(--primary); }

.share-btn:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.copy-toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--primary);
    color: #fff;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 500;
    opacity: 0;
    transition: all 0.4s ease;
    z-index: 10000;
    box-shadow: var(--shadow-lg);
}
.copy-toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

@media (max-width: 500px) {
    .share-btn { width: 85px; height: 90px; font-size: 0.75rem;}
    .share-btn img { width: 26px; height: 26px; }
    .share-grid { gap: 0.5rem; }
}