/* ===================================================
   Design-System: CSS Custom Properties
   =================================================== */

:root {
    --color-bg:       #060305;
    --color-surface:  #0a080d;
    --color-border:   #272727;
    --color-border-hi: #424242;
    --color-text:     #b2b2b2;
    --color-text-md:  #cccccc;
    --color-text-hi:  #e2e2e2;
    --color-muted:    #7a7a7a;
    --color-dimmed:   #525252;
    --color-deco:     #565656;
    --color-ok:       #4a7a62;
    --color-ok-text:  #6aaa88;
    --color-err:      #7a4a4a;
    --color-err-text: #aa6a6a;
    --font-mono:      "SF Mono", "JetBrains Mono", "Cascadia Code",
                      Consolas, "Liberation Mono", "Courier New", monospace;
    --navbar-height:  54px;
    --section-pad:    5.5rem;
    --radius:         0;
    --transition:     0.18s ease;
}

/* ===================================================
   Reset / Basis
   =================================================== */

*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    min-height: 100%;
    margin: 0;
    background-color: var(--color-bg);
    color: var(--color-text);
}

body {
    padding-top: var(--navbar-height);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.75;
}

/* ===================================================
   Navigation
   =================================================== */

.navbar-custom {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    height: var(--navbar-height);
    background: rgba(6, 3, 5, 0.9);
    border-bottom: 1px solid transparent;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    transition: border-color var(--transition), background var(--transition);
}

.navbar-custom.scrolled {
    background: rgba(6, 3, 5, 0.98);
    border-bottom-color: var(--color-border);
}

.navbar-inner {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand-custom {
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.95rem;
    color: var(--color-text-md);
    text-decoration: none;
    letter-spacing: 0.05em;
    white-space: nowrap;
    transition: color var(--transition);
}

.navbar-brand-custom:hover    { color: var(--color-text-hi); }
.navbar-brand-custom .prompt  { color: var(--color-deco); }

.navbar-links {
    display: flex;
    gap: 0.25rem;
    list-style: none;
    margin: 0; padding: 0;
    align-items: center;
}

.nav-link-custom {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-muted);
    text-decoration: none;
    padding: 0.3rem 0.65rem;
    letter-spacing: 0.06em;
    transition: color var(--transition);
    white-space: nowrap;
}

.nav-link-custom:hover,
.nav-link-custom.active {
    color: var(--color-text-md);
}

.nav-link-custom::before {
    content: '>_ ';
    color: transparent;
    transition: color var(--transition);
}

.nav-link-custom:hover::before,
.nav-link-custom.active::before {
    color: var(--color-deco);
}

/* Hamburger */
.navbar-toggler-custom {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: 1px solid var(--color-border);
    padding: 0.4rem 0.5rem;
    cursor: pointer;
}

.navbar-toggler-custom .bar {
    display: block;
    width: 18px;
    height: 1px;
    background: var(--color-muted);
    transition: var(--transition);
}

/* Mobiles Menü */
.navbar-collapse-custom {
    display: flex;
}

@media (max-width: 767px) {
    .navbar-toggler-custom     { display: flex; }
    .navbar-custom             { height: auto; min-height: var(--navbar-height); padding: 0.75rem 0; }

    .navbar-collapse-custom {
        display: none;
        width: 100%;
        padding: 0.5rem 0;
    }

    .navbar-collapse-custom.open {
        display: flex;
    }

    .navbar-inner              { flex-wrap: wrap; }
    .navbar-links              { flex-direction: column; align-items: flex-start; width: 100%; gap: 0; }
    .nav-link-custom           { padding: 0.5rem 0; border-bottom: 1px solid var(--color-border); width: 100%; }
}

/* ===================================================
   Section-Grundlayout
   =================================================== */

.content-section {
    padding: var(--section-pad) 0;
    border-top: 1px solid #0e0e0e;
}

.section-container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 1.75rem;
}

.section-eyebrow {
    font-size: 0.68rem;
    color: var(--color-dimmed);
    letter-spacing: 0.22em;
    text-transform: uppercase;
    margin-bottom: 0.2rem;
}

.section-heading {
    font-family: Consolas, "Courier New", monospace;
    font-size: 1.5rem;
    color: var(--color-text-md);
    letter-spacing: 0.05em;
    margin-bottom: 3rem;
    line-height: 1.2;
}

.section-heading::before {
    content: '>_ ';
    color: var(--color-deco);
}

/* ===================================================
   Hero
   =================================================== */

.hero-section {
    position: relative;
    min-height: calc(100vh - var(--navbar-height));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.5rem 5rem;
}

.hero-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.1rem;
    text-align: center;
}

.hero-img {
    width: 340px;
    height: auto;
    max-width: 68vw;
    max-height: 55vh;
    object-fit: contain;
    display: block;
}

.scramble-text {
    font-family: Consolas, "Courier New", monospace;
    font-size: 2rem;
    letter-spacing: 0.1337em;
    color: var(--color-text);
    cursor: default;
    user-select: none;
}

.hero-tagline {
    font-size: 0.8rem;
    color: var(--color-muted);
    letter-spacing: 0.05em;
}

.hero-cta {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 0.75rem;
}

.scroll-hint {
    position: absolute;
    bottom: 1.75rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.65rem;
    color: var(--color-dimmed);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    animation: hint-blink 2.5s step-end infinite;
}

@keyframes hint-blink {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.25; }
}

/* ===================================================
   Buttons / Terminal-Style
   =================================================== */

.btn-terminal {
    display: inline-block;
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-muted);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    padding: 0.45rem 1.2rem;
    text-decoration: none;
    cursor: pointer;
    transition: border-color var(--transition), color var(--transition);
    letter-spacing: 0.06em;
    white-space: nowrap;
    line-height: 1.5;
}

.btn-terminal::before {
    content: '> ';
    color: var(--color-dimmed);
    transition: color var(--transition);
}

.btn-terminal:hover {
    border-color: var(--color-border-hi);
    color: var(--color-text-md);
}

.btn-terminal:hover::before {
    color: var(--color-deco);
}

/* ===================================================
   Leistungen / Service Cards
   =================================================== */

.service-card {
    border: 1px solid var(--color-border);
    padding: 1.75rem;
    height: 100%;
    transition: border-color var(--transition), background var(--transition);
}

.service-card:hover {
    border-color: var(--color-border-hi);
    background: rgba(255, 255, 255, 0.012);
}

.service-card-title {
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.9rem;
    color: var(--color-text-md);
    margin-bottom: 0.85rem;
    line-height: 1.3;
}

.service-card-title::before {
    content: '└─ ';
    color: var(--color-dimmed);
}

.service-card-desc {
    font-size: 0.8rem;
    color: var(--color-text);
    margin-bottom: 1.1rem;
    line-height: 1.7;
}

.service-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-list li {
    font-size: 0.75rem;
    color: var(--color-muted);
    padding: 0.12rem 0;
    line-height: 1.5;
}

.service-list li::before {
    content: '  · ';
    color: var(--color-dimmed);
}

/* ===================================================
   About
   =================================================== */

.about-text {
    max-width: 580px;
    font-size: 0.875rem;
    color: var(--color-text);
    line-height: 1.85;
}

.about-text p {
    margin-bottom: 1.1rem;
}

.about-text p:last-child {
    margin-bottom: 0;
}

.about-text strong {
    color: var(--color-text-md);
    font-weight: normal;
}

/* ===================================================
   Kontaktformular
   =================================================== */

.form-terminal {
    max-width: 580px;
}

.form-row-terminal {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 2rem;
}

@media (max-width: 575px) {
    .form-row-terminal { grid-template-columns: 1fr; }
}

.form-group-terminal {
    margin-bottom: 2rem;
}

.form-label-terminal {
    display: block;
    font-size: 0.65rem;
    color: var(--color-dimmed);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 0.35rem;
}

.form-input-terminal,
.form-textarea-terminal {
    display: block;
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
    color: var(--color-text-md);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    padding: 0.4rem 0;
    outline: none;
    transition: border-color var(--transition);
    -webkit-appearance: none;
    appearance: none;
}

.form-textarea-terminal {
    resize: vertical;
    min-height: 110px;
}

.form-input-terminal:focus,
.form-textarea-terminal:focus {
    border-bottom-color: var(--color-muted);
}

.form-input-terminal::placeholder,
.form-textarea-terminal::placeholder {
    color: var(--color-dimmed);
}

.flash-message {
    font-size: 0.78rem;
    padding: 0.6rem 0.75rem;
    margin-bottom: 2rem;
    border-left: 2px solid;
    letter-spacing: 0.02em;
}

.flash-ok    { color: var(--color-ok-text);  border-color: var(--color-ok);  }
.flash-error { color: var(--color-err-text); border-color: var(--color-err); }

/* ===================================================
   Site-Footer (fixiert)
   =================================================== */

.site-footer {
    position: fixed;
    right: 12px;
    bottom: 6px;
}

.site-footer a {
    font-family: Arial, sans-serif;
    text-decoration: none;
    color: var(--color-dimmed);
    font-size: 0.72rem;
    transition: color var(--transition);
}

.site-footer a:hover {
    color: var(--color-muted);
}

/* ===================================================
   Standalone-Seiten (Impressum, 404, 500)
   =================================================== */

.standalone-page {
    min-height: calc(100vh - var(--navbar-height));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.5rem;
}

.standalone-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    text-align: center;
}

.page-title-mono {
    font-family: Consolas, "Courier New", monospace;
    font-size: 2rem;
    letter-spacing: 0.1337em;
    color: var(--color-text);
}

.content-block {
    width: 300px;
    max-width: 90vw;
    text-align: left;
    font-size: 0.85rem;
    line-height: 1.75;
}

/* ===================================================
   Fade-In-Animation (IntersectionObserver)
   =================================================== */

.fade-in {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: none;
}