/*
Theme Name: BS Solutions
Author: Bernhard Sageder
Description: One-Page Child Theme für bs solutions – Softwarelösungen & Entwicklung
Template: twentytwentyfour
Version: 1.0.0
Text Domain: bs-solutions
*/

/* ============================================================
   CSS CUSTOM PROPERTIES
   ============================================================ */
:root {
    --color-primary:     #0ea5e9;
    --color-primary-d:   #0284c7;
    --color-dark:        #0f172a;
    --color-dark-2:      #1e293b;
    --color-dark-3:      #334155;
    --color-light:       #f8fafc;
    --color-light-2:     #f1f5f9;
    --color-white:       #ffffff;
    --color-text:        #1e293b;
    --color-text-muted:  #64748b;
    --color-border:      #e2e8f0;
    --color-accent-bg:   rgba(14,165,233,0.08);

    --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --max-width: 1140px;
    --nav-height: 68px;
    --section-pad: 90px;
    --transition: 0.25s ease;
    --radius: 10px;
    --radius-lg: 18px;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
}

/* ============================================================
   GOOGLE FONTS IMPORT
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

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

ul { list-style: none; }

/* ============================================================
   LAYOUT HELPERS
   ============================================================ */
.container {
    max-width: var(--max-width);
    margin-inline: auto;
    padding-inline: 24px;
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--color-dark);
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 640px;
    line-height: 1.7;
}

.section-header {
    margin-bottom: 56px;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
#site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: transparent;
    transition: background var(--transition), box-shadow var(--transition);
}

#site-nav.scrolled {
    background: rgba(15, 23, 42, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-height);
    max-width: var(--max-width);
    margin-inline: auto;
    padding-inline: 24px;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-white);
    letter-spacing: -0.02em;
    flex-shrink: 0;
}
.nav-logo span { color: var(--color-primary); }
.nav-logo:hover { color: var(--color-white); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255,255,255,0.8);
    padding: 6px 14px;
    border-radius: 6px;
    transition: color var(--transition), background var(--transition);
}
.nav-links a:hover {
    color: var(--color-white);
    background: rgba(255,255,255,0.08);
}
.nav-links a.active {
    color: var(--color-primary);
}

.nav-cta {
    background: var(--color-primary) !important;
    color: var(--color-white) !important;
    padding: 8px 20px !important;
    border-radius: 8px !important;
}
.nav-cta:hover {
    background: var(--color-primary-d) !important;
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO SECTION
   ============================================================ */
#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 60%, #0f3460 100%);
    overflow: hidden;
}

#hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 70% 40%, rgba(14,165,233,0.15) 0%, transparent 70%),
        radial-gradient(ellipse 40% 40% at 20% 70%, rgba(99,102,241,0.10) 0%, transparent 70%);
    pointer-events: none;
}

/* Decorative grid */
#hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    padding-top: var(--nav-height);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(14,165,233,0.12);
    border: 1px solid rgba(14,165,233,0.3);
    color: var(--color-primary);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 28px;
}
.hero-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 5rem);
    font-weight: 800;
    color: var(--color-white);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}
.hero-title span { color: var(--color-primary); }

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    color: rgba(255,255,255,0.65);
    font-weight: 400;
    margin-bottom: 40px;
    max-width: 540px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 64px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 13px 28px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}
.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}
.btn-primary:hover {
    background: var(--color-primary-d);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14,165,233,0.35);
}
.btn-outline {
    background: transparent;
    color: rgba(255,255,255,0.85);
    border: 1.5px solid rgba(255,255,255,0.25);
}
.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(14,165,233,0.06);
}

.hero-stats {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}

.hero-stat-value {
    display: block;
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--color-white);
    line-height: 1;
    margin-bottom: 4px;
}
.hero-stat-label {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
    font-weight: 400;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: rgba(255,255,255,0.35);
    font-size: 0.75rem;
    animation: bounce 2s infinite;
    z-index: 1;
}
.scroll-indicator svg {
    width: 20px;
    height: 20px;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================================================
   LEISTUNGEN SECTION
   ============================================================ */
#software {
    padding: var(--section-pad) 0;
    background: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
    margin-top: 56px;
}

.service-card {
    background: var(--color-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.service-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-icon {
    width: 52px;
    height: 52px;
    background: var(--color-accent-bg);
    border: 1px solid rgba(14,165,233,0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--color-primary);
}
.service-icon svg { width: 26px; height: 26px; }

.service-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.75;
}

/* Intro paragraph above cards */
.software-intro {
    max-width: 780px;
}
.software-intro p {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 16px;
}
.software-intro strong { color: var(--color-text); }

/* ============================================================
   PORTFOLIO SECTION
   ============================================================ */
#portfolio {
    padding: var(--section-pad) 0;
    background: var(--color-light);
}

/* Accordion categories */
.accordion {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.accordion-item {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.accordion-item:has(.accordion-trigger[aria-expanded="true"]) {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(14,165,233,0.08);
}

.accordion-trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 28px;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-sans);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-dark);
    transition: color var(--transition);
}
.accordion-trigger:hover { color: var(--color-primary); }
.accordion-trigger[aria-expanded="true"] { color: var(--color-primary); }

.accordion-trigger-left {
    display: flex;
    align-items: center;
    gap: 14px;
}

.accordion-category-icon {
    width: 38px;
    height: 38px;
    background: var(--color-accent-bg);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--color-primary);
    font-size: 1rem;
}

.accordion-meta {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--color-text-muted);
    display: block;
    margin-top: 2px;
}

.accordion-chevron {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--color-text-muted);
    transition: transform var(--transition), color var(--transition);
}
.accordion-trigger[aria-expanded="true"] .accordion-chevron {
    transform: rotate(180deg);
    color: var(--color-primary);
}

.accordion-body {
    display: none;
    padding: 0 28px 28px;
}
.accordion-body.open { display: block; }

/* Project items within accordion */
.project-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.project-item {
    border-left: 3px solid var(--color-border);
    padding-left: 20px;
    transition: border-color var(--transition);
}
.project-item:hover { border-color: var(--color-primary); }

.project-item h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 8px;
    line-height: 1.4;
}

.project-item p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 10px;
    line-height: 1.7;
}

.project-item h4 {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    margin-bottom: 6px;
}

.project-item ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.project-item ul li {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    padding-left: 16px;
    position: relative;
    line-height: 1.6;
}
.project-item ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-size: 0.75rem;
    top: 2px;
}

.project-duration {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-accent-bg);
    padding: 3px 10px;
    border-radius: 100px;
    margin-top: 10px;
}

/* ============================================================
   ÜBER MICH SECTION
   ============================================================ */
#about {
    padding: var(--section-pad) 0;
    background: var(--color-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.about-text p {
    font-size: 1rem;
    color: var(--color-text-muted);
    line-height: 1.85;
    margin-bottom: 18px;
}
.about-text p:last-child { margin-bottom: 0; }
.about-text strong { color: var(--color-text); font-weight: 600; }

/* Skills */
.skills-block {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.skill-group h3 {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-tag {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-dark-3);
    background: var(--color-light);
    border: 1px solid var(--color-border);
    padding: 5px 12px;
    border-radius: 6px;
    transition: border-color var(--transition), background var(--transition), color var(--transition);
}
.skill-tag:hover {
    border-color: var(--color-primary);
    background: var(--color-accent-bg);
    color: var(--color-primary);
}

/* ============================================================
   KONTAKT SECTION
   ============================================================ */
#contact {
    padding: var(--section-pad) 0;
    background: var(--color-dark);
}

#contact .section-title { color: var(--color-white); }
#contact .section-subtitle { color: rgba(255,255,255,0.55); }
#contact .section-label { }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 60px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-item-icon {
    width: 42px;
    height: 42px;
    background: rgba(14,165,233,0.12);
    border: 1px solid rgba(14,165,233,0.25);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--color-primary);
}
.contact-item-icon svg { width: 18px; height: 18px; }

.contact-item-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255,255,255,0.35);
    display: block;
    margin-bottom: 3px;
}

.contact-item-value {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.85);
    line-height: 1.5;
}
.contact-item-value a {
    color: rgba(255,255,255,0.85);
    transition: color var(--transition);
}
.contact-item-value a:hover { color: var(--color-primary); }

.contact-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255,255,255,0.06);
    height: 360px;
}
.contact-map iframe {
    width: 100%;
    height: 100%;
    border: none;
    filter: grayscale(20%) contrast(1.05);
}

/* ============================================================
   FOOTER
   ============================================================ */
#site-footer {
    background: #080d1a;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 28px 0;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-brand {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.4);
}
.footer-brand strong {
    font-weight: 600;
    color: rgba(255,255,255,0.65);
}

.footer-links {
    display: flex;
    gap: 24px;
    align-items: center;
}
.footer-links a {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.4);
    transition: color var(--transition);
}
.footer-links a:hover { color: var(--color-primary); }

/* ============================================================
   LEGAL PAGES
   ============================================================ */
.legal-page {
    padding-top: calc(var(--nav-height) + 60px);
    padding-bottom: var(--section-pad);
    min-height: 100vh;
    background: var(--color-white);
}

.legal-header {
    background: var(--color-dark);
    padding: calc(var(--nav-height) + 48px) 0 48px;
    margin-bottom: 60px;
}
.legal-header h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 8px;
}
.legal-header p {
    color: rgba(255,255,255,0.5);
    font-size: 0.95rem;
}

.legal-content {
    max-width: 780px;
}
.legal-content h2 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-dark);
    margin: 32px 0 10px;
}
.legal-content h2:first-of-type { margin-top: 0; }
.legal-content p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 12px;
}
.legal-content table {
    border-collapse: collapse;
    width: 100%;
    margin-bottom: 20px;
}
.legal-content table td {
    padding: 8px 16px 8px 0;
    font-size: 0.95rem;
    color: var(--color-text-muted);
    vertical-align: top;
}
.legal-content .back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 40px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
}
.legal-content .back-link:hover { color: var(--color-primary-d); }
.legal-content hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 36px 0;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .about-grid {
        gap: 50px;
    }
    .contact-grid {
        gap: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-pad: 64px;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: rgba(15,23,42,0.98);
        backdrop-filter: blur(12px);
        padding: 20px 24px 28px;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        border-top: 1px solid rgba(255,255,255,0.06);
    }
    .nav-links.open { display: flex; }
    .nav-links a { padding: 12px 16px; border-radius: 8px; font-size: 1rem; }

    .nav-toggle { display: flex; }
    .nav-cta { text-align: center; justify-content: center; margin-top: 8px; }

    .hero-stats {
        gap: 28px;
    }
    .hero-stat-value { font-size: 1.75rem; }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

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

    .contact-map {
        height: 280px;
    }

    .accordion-trigger { padding: 18px 20px; }
    .accordion-body { padding: 0 20px 20px; }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-actions { flex-direction: column; }
    .btn { justify-content: center; }
    .services-grid { grid-template-columns: 1fr; }
}