:root {
--blue: #1f74cf; /* Logo-Blau */
--blue-600: #1558a0;
--black: #0b0d10;
--dark: #dcdcdc;
--text: #272a2a;
--muted: #a9b4c2;
--card: #769dca;
--white: #ffffff;
--shade: #0e1217;
--max: 1200px;
--radius: 16px;
--shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}
* {
box-sizing: border-box;
}
html,
body {
margin: 0;
padding: 0;
font-family: Inter, system-ui, Segoe UI, Roboto, Arial, sans-serif;
background: var(--dark);
color: var(--text);
scroll-behavior: smooth;
}
img {
max-width: 100%;
display: block;
}
a {
color: var(--white);
text-decoration: none;
}
.container {
max-width: var(--max);
margin: 0 auto;
padding: 0 20px;
}

/* Header / Nav */
header {
position: sticky;
top: 0;
z-index: 50;
background: #dcdcdc;
/*backdrop-filter: blur(10px);*/
border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav {
display: flex;
align-items: center;
justify-content: space-between;
gap: 16px;
height: 72px;
}
.brand {
display: flex;
align-items: center;
gap: 14px;
}
.brand img#logo {
height: 42px;
width: auto;
object-fit: contain;
}
.brand .logotext {
display: none;
font-weight: 900;
letter-spacing: 0.4px;
}

.brand .name {
font-weight: 900;
}
.brand .sub {
font-size: 12px;
color: var(--muted);
letter-spacing: 0.12em;
}
nav ul {
list-style: none;
display: flex;
gap: 22px;
margin: 0;
padding: 0;
}
nav a {
color: var(--text);
font-weight: 600;
opacity: 0.9;
}
nav a:hover {
opacity: 1;
}
.socials {
display: flex;
gap: 10px;
align-items: center;
}
.socials a {
width: 36px;
height: 36px;
border-radius: 999px;
display: grid;
place-items: center;
background: #10151c;
border: 1px solid rgba(255, 255, 255, 0.06);
}
.socials a svg {
width: 18px;
height: 18px;
}
.burger {
display: none;
width: 44px;
height: 44px;
border-radius: 10px;
border: 1px solid rgba(255, 255, 255, 0.08);
background: #0f141b;
color: #fff;
align-items: center;
justify-content: center;
}
/* mobile menu */
.mobile {
position: fixed;
top: 72px;              /* direkt unter Header */
left: 0;
right: 0;
background-color: #dcdcdc;
border-top: 1px solid rgba(255,255,255,0.06);
padding: 14px 0;
display: flex;
flex-direction: column;
gap: 10px;
transform: translateY(-100%);
opacity: 0;
visibility: hidden;
transition: transform 0.35s ease, opacity 0.35s ease, visibility 0.35s;
z-index: 40;
border-radius: 0 0 5% 5%;
padding-bottom: 25px;
/* display: none;
flex-direction: column;
gap: 10px;
padding: 14px 0;*/
}
.mobile a {
margin-left: 1em;
margin-right: 1em;
padding: 12px;
border: 1px solid rgba(255, 255, 255, 0.08);
border-radius: 10px;
background-color: var(--blue-600) ;
text-align: center;
}

/* Wenn NICHT hidden → sichtbar + runterfahren */
.mobile:not([hidden]) {
transform: translateY(0);
opacity: 1;
visibility: visible;
}

/* Optional: Body scroll sperren wenn Menü offen */
body.menu-open {
overflow: hidden;
}

/* Hero */
.hero {
position: relative;
min-height: 78dvh;
display: grid;
place-items: center;
text-align: center;
overflow: hidden;
background: radial-gradient(
    1200px 600px at 70% -10%,
    rgba(31, 116, 207, 0.25),
    transparent 60%
    ),
    linear-gradient(180deg, #0a0d12 0%, #0e1217 100%);
}
.hero::before {
content: "";
position: absolute;
inset: -20px;
background: url("./Hintergrund.png")
    center/cover no-repeat;
opacity: 0.18;
filter: grayscale(100%) contrast(120%) blur(5px);
}
.hero .inner {
position: relative;
z-index: 1;
}
.kicker {
color: var(--muted);
text-transform: uppercase;
letter-spacing: 0.32em;
font-size: 0.82rem;
}
.title {
margin: 0.3rem 0 1rem;
font-weight: 900;
line-height: 1.17;
font-size: clamp(2.2rem, 6vw, 5.2rem);
text-transform: uppercase;
letter-spacing: 0.04em;
background: linear-gradient(180deg, #fff, #cfe2ff);
-webkit-background-clip: text;
background-clip: text;
color: transparent;
animation: pop 900ms cubic-bezier(0.2, 0.9, 0.2, 1) both;
}
@keyframes pop {
from {
    transform: translateY(26px) scale(0.75);
    opacity: 0;
}
to {
    transform: translateY(0) scale(1);
    opacity: 1;
}
}
.subtitle {
max-width: 820px;
margin: 0 auto 28px;
color: #c9d6e6;
}
.cta {
display: inline-block;
padding: 14px 20px;
border-radius: 12px;
font-weight: 800;
letter-spacing: 0.02em;
background: linear-gradient(180deg, var(--blue), var(--blue-600));
box-shadow: 0 8px 24px rgba(31, 116, 207, 0.35);
}

/* Sections */
section {
padding: 80px 0;
}
section.alt {
background: #dcdcdc;
}

#impressum {
background-color: #a9a9a9;
padding: 2% 5%;
}

h2.section-title {
font-size: clamp(1.6rem, 3.2vw, 2.2rem);
margin: 0 0 18px;
letter-spacing: 0.02em;
}
p.lead {
color: var(--text);
margin: 0 0 24px;
}

/* About  */
.grid-2 {
display: grid;
grid-template-columns: 1.1fr 0.9fr;
gap: 28px;
align-items: center;
}
.about-card {
background: var(--card);
border: 1px solid rgba(255, 255, 255, 0.06);
border-radius: var(--radius);
padding: 22px;
box-shadow: var(--shadow);
}

/* Projects */
.cards {
display: grid;
grid-template-columns: repeat(5, 1fr);
gap: 18px;
}
@media (max-width: 1100px) {
.cards {
    grid-template-columns: repeat(3, 1fr);
}
}
@media (max-width: 720px) {
.grid-2 {
    grid-template-columns: 1fr;
}
.cards {
    grid-template-columns: repeat(1, 1fr);
}
}

.card {
background: var(--card);
border: 1px solid rgba(255, 255, 255, 0.08);
border-radius: 16px;
overflow: hidden;
box-shadow: var(--shadow);
transform: translateY(0);
transition: 0.25s ease;
}
.card:hover {
transform: translateY(-4px);
}
.card img {
aspect-ratio: 16/10;
object-fit: cover;
}
.card .cbody {
padding: 14px 14px 18px;
}
.card .tag {
display: inline-block;
font-size: 0.72rem;
text-transform: uppercase;
letter-spacing: 0.14em;
color: #9fb9e7;
}
.card h3 {
margin: 8px 0 6px;
font-size: 1.05rem;
}
.card p {
margin: 0;
color: #cfe3ff;
font-size: 0.95rem;
}

/* Videos row */
.videos {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 18px;
margin-top: 18px;
}
@media (max-width: 720px) {
.videos {
    grid-template-columns: 1fr;
}
}
.video-thumb {
position: relative;
border-radius: 16px;
overflow: hidden;
cursor: pointer;
border: 1px solid rgba(255, 255, 255, 0.08);
}
.video-thumb img {
width: 100%;
aspect-ratio: 16/9;
object-fit: cover;
filter: brightness(0.8);
}
.video-thumb .play {
position: absolute;
inset: auto auto 16px 16px;
background: rgba(0, 0, 0, 0.55);
border: 1px solid rgba(255, 255, 255, 0.15);
padding: 10px 12px;
border-radius: 12px;
font-weight: 700;
}

/* Kontakt */
.contact-wrap {
display: grid;
grid-template-columns: 1.1fr 0.9fr;
gap: 22px;
}
@media (max-width: 900px) {
.contact-wrap {
    grid-template-columns: 1fr;
}
}
.contact-box {
background: var(--card);
border: 1px solid rgba(255, 255, 255, 0.08);
border-radius: 16px;
padding: 22px;
}
.contact-box p {
color: #c7d3e3;
}
.contact-list {
margin: 14px 0 0;
padding: 0;
list-style: none;
}
.contact-list li {
margin: 8px 0;
}
.contact-list a {
color: #cfe2ff;
}

.contact-box label input, .contact-box label textarea{
margin-top: 6px;
}

#contact-details {
max-height: 26.8em;
}

form .row {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 12px;
}
@media (max-width: 720px) {
form .row {
    grid-template-columns: 1fr;
}
}
input,
textarea {
width: 100%;
padding: 12px 14px;
border-radius: 12px;
border: 1px solid rgba(255, 255, 255, 0.12);
background: #9ec3ef;
color: var(--text);
outline: none;
}
textarea {
min-height: 140px;
resize: vertical;
}
.btn {
display: inline-flex;
gap: 8px;
align-items: center;
justify-content: center;
padding: 12px 16px;
border-radius: 12px;
border: 1px solid rgba(255, 255, 255, 0.1);
background: linear-gradient(180deg, var(--blue), var(--blue-600));
color: #fff;
font-weight: 800;
cursor: pointer;
}

/* Footer */
footer {
padding: 28px 0;
background: var(--card);
border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.foot {
display: flex;
align-items: center;
justify-content: space-between;
gap: 12px;
flex-wrap: wrap;
}
.foot a {
color: #343a42;
}
.foot .links {
display: flex;
gap: 16px;
flex-wrap: wrap;
}
.small {
color: #2b313a;
font-size: 0.9rem;
}

.small a {
color: #226abf ;
}

/* Reveal on scroll */
.reveal {
opacity: 0;
transform: translateY(16px);
transition: 0.6s ease;
}

.reveal img {
border-radius: 1em;
}

.reveal.visible {
opacity: 1;
transform: translateY(0);
}

/* Burger show/hide */
@media (max-width: 980px) {
nav ul {
    display: none;
}
.burger {
    display: flex;
}
.mobile {
    display: flex;
}
}


.imageBig {
position: fixed;
inset: 0;
display: flex;
align-items: center;
justify-content: center;
background: rgba(0, 0, 0, 0.85);
z-index: 70;
padding: 10px;
opacity: 0;
visibility: hidden;
transition: opacity 250ms ease, visibility 250ms ease;
}

.imageBig:not([hidden]) {
opacity: 1;
visibility: visible;
}

.imageBig Button {
color: white;
position: fixed;
top: 20px;
right: 20px;
background: transparent;
border: none;
font-size: 24px;
cursor: pointer;

}

/* center & constrain the image inside the overlay */
.imageBig img {
max-width: 95%;
max-height: 95%;
width: auto;
height: auto;
object-fit: contain;
border-radius: 12px;
box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
cursor: zoom-out;
}

@media (max-width: 720px) {
.imageBig {
    padding: 20px;
}

.imageBig img {
    max-width: 100%;
    max-height: 90vh;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}


}