/* ================================================================
   Patrick Teuschler
   style.css
   Palette drawn from page-header.png:
     near-black bg, cyan #00dfe8, violet #a259f7, green #1db954
   ================================================================ */

/* ── Custom Properties ──────────────────────────────────────── */
:root {
    --color-bg:           #f4f5f7;
    --color-bg-tinted:    #eceef2;
    --color-dark:         #0c0f1a;
    --color-dark-mid:     #141828;
    --color-dark-card:    rgba(255,255,255,.06);

    --color-cyan:         #00dfe8;
    --color-cyan-dim:     #00b8bf;
    --color-violet:       #a259f7;
    --color-violet-dim:   #7c3fd4;
    --color-green:        #1db954;

    --color-text:         #1a1d2e;
    --color-text-muted:   #5a6070;
    --color-white:        #ffffff;

    --grad-cv:            linear-gradient(115deg, var(--color-cyan), var(--color-violet));

    --font-display:       'Space Grotesk', sans-serif;
    --font-body:          'Lato', sans-serif;

    --radius-sm:          6px;
    --radius-md:          14px;
    --radius-lg:          22px;
    --radius-xl:          32px;

    --shadow-sm:          0 2px 10px rgba(0,0,0,.07);
    --shadow-md:          0 6px 28px rgba(0,0,0,.10);
    --shadow-glow-c:      0 0 32px rgba(0,223,232,.22);
    --shadow-glow-v:      0 0 32px rgba(162,89,247,.22);

    --transition:         0.22s ease;
}

/* ── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html  { scroll-behavior: smooth; font-size: 16px; }
body  { font-family: var(--font-body); background: var(--color-bg); color: var(--color-text); line-height: 1.65; -webkit-font-smoothing: antialiased; }
img   { max-width: 100%; display: block; }
a     { color: inherit; text-decoration: none; }
ul    { list-style: none; }
strong { font-weight: 700; }

/* ── Layout ─────────────────────────────────────────────────── */
.container         { max-width: 1080px; margin: 0 auto; padding: 0 1.5rem; }
.container--narrow { max-width: 760px; }
.section           { padding: 5.5rem 0; }
.section--tinted   { background: var(--color-bg-tinted); }
.section--dark     { background: var(--color-dark); color: var(--color-white); }

/* ── Section labels & headings ──────────────────────────────── */
.section__label {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-cyan-dim);
    margin-bottom: 0.75rem;
}
.section__label--light { color: var(--color-cyan); }

.section__header { margin-bottom: 3rem; }
.section__header h2,
.about__text h2 {
    font-family: var(--font-display);
    font-size: clamp(1.9rem, 3.5vw, 2.6rem);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.2;
    margin-top: 0.25rem;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.85rem 2rem;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
    text-decoration: none;
}
.btn--primary {
    background: var(--grad-cv);
    color: var(--color-dark);
    box-shadow: var(--shadow-glow-c);
}
.btn--primary:hover  { transform: translateY(-2px); box-shadow: 0 0 48px rgba(0,223,232,.35); }
.btn--ghost {
    background: transparent;
    color: var(--color-white);
    border: 1.5px solid rgba(255,255,255,.3);
}
.btn--ghost:hover    { border-color: var(--color-cyan); color: var(--color-cyan); transform: translateY(-2px); }
.btn--outline {
    background: transparent;
    color: var(--color-cyan-dim);
    border: 1.5px solid var(--color-cyan-dim);
}
.btn--outline:hover  { background: var(--color-cyan-dim); color: var(--color-dark); transform: translateY(-2px); }

/* ── Navigation ─────────────────────────────────────────────── */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(12, 15, 26, .85);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255,255,255,.06);
    padding: 0.9rem 0;
    transition: box-shadow var(--transition);
}
.nav--scrolled { box-shadow: 0 4px 30px rgba(0,0,0,.4); }

.nav__inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.nav__brand {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-white);
    flex-shrink: 0;
}
.nav__brand-pt {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    display: block;
    filter: drop-shadow(0 0 6px rgba(0,223,232,.35));
}
.nav__links {
    display: flex;
    list-style: none;
    gap: 0.15rem;
    align-items: center;
}
.nav__links a {
    color: rgba(255,255,255,.6);
    font-size: 0.9rem;
    font-weight: 400;
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
    letter-spacing: 0.01em;
}
.nav__links a:hover { color: var(--color-white); background: rgba(255,255,255,.07); }
.nav__cta {
    background: var(--grad-cv) !important;
    color: var(--color-dark) !important;
    font-weight: 700 !important;
    padding: 0.4rem 1.1rem !important;
}
.nav__cta:hover { opacity: .9; }

.nav__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    flex-shrink: 0;
}
.nav__hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

@media (max-width: 680px) {
    .nav__hamburger { display: flex; }
    .nav__links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0; right: 0;
        background: var(--color-dark);
        flex-direction: column;
        align-items: stretch;
        padding: 0.75rem 1.5rem 1.25rem;
        gap: 0.15rem;
        box-shadow: 0 12px 30px rgba(0,0,0,.5);
        border-bottom: 1px solid rgba(255,255,255,.07);
    }
    .nav__links--open { display: flex; }
    .nav__links a { display: block; padding: 0.65rem 0.8rem; font-size: 1rem; }
    .nav__links li:last-child { margin-top: 0.5rem; }
    .nav__hamburger--open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav__hamburger--open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
    .nav__hamburger--open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* ── Hero ───────────────────────────────────────────────────── */
.hero {
    position: relative;
    background: var(--color-dark);
    min-height: 92vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}

/* The header image, right-aligned, fading out left */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        url('page-header.png') center right / contain no-repeat;
    opacity: .55;
    mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,.2) 25%, rgba(0,0,0,.8) 55%, black 100%);
    -webkit-mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,.2) 25%, rgba(0,0,0,.8) 55%, black 100%);
    pointer-events: none;
}

/* Subtle dot-grid overlay */
.hero__bg-grid {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(0,223,232,.12) 1px, transparent 1px);
    background-size: 36px 36px;
    pointer-events: none;
    z-index: 0;
}

.hero__inner {
    position: relative;
    z-index: 1;
    max-width: 1080px;
    margin: 0 auto;
    padding: 6rem 1.5rem 5rem;
    max-width: 620px;
    margin-left: max(1.5rem, calc((100vw - 1080px) / 2));
}

.hero__eyebrow {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    background: var(--grad-cv);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.25rem;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(3rem, 7vw, 5rem);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.08;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}
.hero h1 em {
    font-style: normal;
    background: var(--grad-cv);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__sub {
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    color: rgba(255,255,255,.65);
    max-width: 480px;
    margin-bottom: 2.5rem;
    line-height: 1.7;
    font-weight: 300;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.hero__scroll-hint {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    color: rgba(255,255,255,.25);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    animation: bob 2.4s ease-in-out infinite;
}
@keyframes bob {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50%       { transform: translateX(-50%) translateY(6px); }
}

@media (max-width: 680px) {
    .hero::before { opacity: .18; }
    .hero__inner { padding: 4rem 1.5rem 3rem; margin-left: 1.5rem; }
    .hero__scroll-hint { display: none; }
}

/* ── Services ───────────────────────────────────────────────── */
.services__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}
@media (max-width: 680px) { .services__grid { grid-template-columns: 1fr; } }

/* Scroll-triggered fade-in */
.service-card, .course-card, .about__grid {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.55s ease, transform 0.55s ease;
    transition-delay: calc(var(--card-index, 0) * 0.1s);
}
.service-card.visible, .course-card.visible, .about__grid.visible {
    opacity: 1;
    transform: none;
}

.service-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2.25rem 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0,0,0,.06);
    position: relative;
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition),
                opacity 0.55s ease;
    transition-delay: calc(var(--card-index, 0) * 0.1s);
}
.service-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: var(--grad-cv);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.service-card:hover::after { transform: scaleX(1); }

.service-card--featured {
    background: var(--color-dark);
    border-color: rgba(0,223,232,.18);
    box-shadow: var(--shadow-glow-c);
}
.service-card--featured h3,
.service-card--featured p,
.service-card--featured li { color: rgba(255,255,255,.85); }
.service-card--featured::after { transform: scaleX(1); }

.service-card__num {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 700;
    line-height: 1;
    color: rgba(0,0,0,.04);
    position: absolute;
    top: 1.25rem;
    right: 1.5rem;
    pointer-events: none;
    user-select: none;
}
.service-card--featured .service-card__num { color: rgba(255,255,255,.05); }
.service-card--featured h3 {
    color: rgba(255,255,255,.6) !important;
}
.service-card h3 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 1rem;
    line-height: 1.25;
}
.service-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.75;
    margin-bottom: 1.25rem;
}
.service-card__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}
.service-card__list li {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    padding-left: 1.1rem;
    position: relative;
}
.service-card__list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-cyan-dim);
    font-size: 0.78rem;
}
.service-card--featured .service-card__list li { color: rgba(255,255,255,.6); }

/* ── About ──────────────────────────────────────────────────── */
.about__grid {
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: 4rem;
    align-items: start;
}
@media (max-width: 768px) {
    .about__grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .about__aside { display: none; }
}

.about__text h2 { margin-bottom: 1.25rem; }
.about__lead {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 1rem;
    line-height: 1.6;
}
.about__text p {
    font-size: 0.97rem;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 0.9rem;
    font-weight: 300;
}
.about__text p:last-child { margin-bottom: 0; }

.about__photo-placeholder {
    width: 100%;
    aspect-ratio: 3 / 4;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    border: 2px dashed rgba(0,0,0,.14);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    color: #aaa;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.about__photo {
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
}
.about__photo img {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: center 15%;
}

/* ── Coming soon: courses ───────────────────────────────────── */
.coming-soon__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-violet-dim);
    border: 1.5px solid var(--color-violet-dim);
    border-radius: 100px;
    padding: 0.3rem 0.9rem;
    margin-bottom: 1rem;
}
.coming-soon__badge::before {
    content: '';
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--color-violet-dim);
    animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: .4; transform: scale(.7); }
}

.coming-soon__title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 1rem;
    line-height: 1.2;
}
.coming-soon__intro {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
    line-height: 1.75;
    font-weight: 300;
    max-width: 600px;
}

.courses__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 2.5rem;
}
@media (max-width: 600px) { .courses__grid { grid-template-columns: 1fr; } }

.course-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: 1.75rem 1.5rem;
    border: 1px solid rgba(0,0,0,.07);
    box-shadow: var(--shadow-sm);
    transition: opacity 0.55s ease, transform 0.55s ease;
}
.course-card__icon {
    width: 50px; height: 50px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(0,223,232,.1), rgba(162,89,247,.1));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--color-violet-dim);
}
.course-card h3 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.9rem;
}
.course-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}
.course-card li {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    padding-left: 1.1rem;
    position: relative;
    font-weight: 300;
}
.course-card li::before {
    content: '·';
    position: absolute; left: 0;
    color: var(--color-violet-dim);
    font-size: 1rem;
}

.coming-soon__cta-text {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: 1.25rem;
    font-weight: 300;
}

/* ── Contact ────────────────────────────────────────────────── */
.kontakt__title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 0.75rem;
    line-height: 1.1;
    letter-spacing: -0.02em;
}
.kontakt__sub {
    font-size: 1rem;
    color: rgba(255,255,255,.5);
    margin-bottom: 2.5rem;
    font-weight: 300;
    max-width: 480px;
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}
@media (max-width: 540px) { .contact__grid { grid-template-columns: 1fr; } }

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.1rem;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--radius-md);
    padding: 1.4rem 1.6rem;
    transition: background var(--transition), transform var(--transition), border-color var(--transition);
}
.contact-item:hover {
    background: rgba(0,223,232,.08);
    border-color: rgba(0,223,232,.3);
    transform: translateY(-2px);
}
.contact-item__icon {
    width: 48px; height: 48px;
    border-radius: 50%;
    background: var(--grad-cv);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--color-dark);
}
.contact-item__label {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: rgba(255,255,255,.35);
    margin-bottom: 0.25rem;
}
.contact-item__value {
    display: block;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-white);
}
.contact__note {
    font-size: 0.85rem;
    color: rgba(255,255,255,.35);
    letter-spacing: 0.02em;
}

/* ── Footer ─────────────────────────────────────────────────── */
.footer {
    background: #070910;
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,.25);
}
.footer a {
    color: rgba(255,255,255,.3);
    transition: color var(--transition);
}
.footer a:hover { color: var(--color-cyan); }

/* ── Legal pages ────────────────────────────────────────────── */
.legal-page { padding: 4rem 0 5rem; min-height: 60vh; }
.legal-page__title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 2.5rem;
    padding-bottom: 1rem;
    border-bottom: 3px solid transparent;
    border-image: var(--grad-cv) 1;
    letter-spacing: -0.02em;
}
.legal-section { margin-bottom: 2.25rem; }
.legal-section h2 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.75rem;
}
.legal-section p, .legal-section li {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 0.75rem;
    font-weight: 300;
}
.legal-section ul { margin: 0.5rem 0 0.75rem 1.5rem; list-style: disc; }
.legal-section p:last-child { margin-bottom: 0; }
.legal-section strong { color: var(--color-text); font-weight: 700; }
.legal-section small { font-size: 0.8rem; color: #bbb; }
.legal-section a { color: var(--color-cyan-dim); text-decoration: underline; text-underline-offset: 3px; }
.legal-section a:hover { color: var(--color-violet-dim); }