/* ================================================================
   PageForge — Frontend CSS
   Responsive, Hover-Effekte, Animationen, CSS-Variablen
   ================================================================ */

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --pf-primary:   #3b82f6;
    --pf-secondary: #1e40af;
    --pf-accent:    #f59e0b;
    --pf-text:      #1f2937;
    --pf-bg:        #ffffff;
    --pf-radius:    8px;
    --pf-font-body: system-ui, -apple-system, sans-serif;
    --pf-font-head: system-ui, -apple-system, sans-serif;
    --pf-transition: all .25s ease;
    --pf-shadow-sm:  0 1px 3px rgba(0,0,0,.08);
    --pf-shadow-md:  0 4px 15px rgba(0,0,0,.1);
    --pf-shadow-lg:  0 10px 40px rgba(0,0,0,.12);
    --pf-shadow-xl:  0 20px 60px rgba(0,0,0,.18);
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--pf-font-body);
    color: var(--pf-text);
    background: var(--pf-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--pf-primary); text-decoration: none; transition: var(--pf-transition); }
a:hover { opacity: .85; }

/* ================================================================
   HOVER EFFEKTE — wiederverwendbare CSS-Klassen
   ================================================================ */

/* Cards */
.pf-hover-lift {
    transition: transform .3s ease, box-shadow .3s ease;
}
.pf-hover-lift:hover {
    transform: translateY(-6px);
    box-shadow: var(--pf-shadow-xl) !important;
}

.pf-hover-scale {
    transition: transform .3s ease;
}
.pf-hover-scale:hover {
    transform: scale(1.02);
}

.pf-hover-shadow {
    transition: box-shadow .3s ease;
}
.pf-hover-shadow:hover {
    box-shadow: var(--pf-shadow-xl) !important;
}

.pf-hover-border {
    transition: border-color .2s ease;
    border: 2px solid transparent;
}
.pf-hover-border:hover {
    border-color: var(--pf-primary) !important;
}

.pf-hover-glow:hover {
    box-shadow: 0 0 0 3px rgba(59,130,246,.3) !important;
}

/* Images */
.pf-img-zoom {
    overflow: hidden;
}
.pf-img-zoom img {
    transition: transform .4s ease;
}
.pf-img-zoom:hover img {
    transform: scale(1.06);
}

.pf-img-grayscale img {
    filter: grayscale(1);
    opacity: .7;
    transition: filter .3s ease, opacity .3s ease;
}
.pf-img-grayscale:hover img {
    filter: grayscale(0);
    opacity: 1;
}

.pf-img-brightness img {
    filter: brightness(.9);
    transition: filter .3s ease;
}
.pf-img-brightness:hover img {
    filter: brightness(1.05);
}

/* Buttons */
.pf-btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all .2s ease;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.pf-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,.12);
    opacity: 0;
    transition: opacity .2s;
}
.pf-btn:hover::after { opacity: 1; }

.pf-btn-sm  { padding: .4rem 1rem;   font-size: .85rem; border-radius: calc(var(--pf-radius) * .75); }
.pf-btn-md  { padding: .65rem 1.5rem; font-size: 1rem;   border-radius: var(--pf-radius); }
.pf-btn-lg  { padding: .85rem 2rem;  font-size: 1.05rem; border-radius: calc(var(--pf-radius) * 1.25); }

.pf-btn-filled  { background: var(--pf-primary); color: #fff; border-color: var(--pf-primary); }
.pf-btn-outline { background: transparent; color: var(--pf-primary); border-color: var(--pf-primary); }
.pf-btn-ghost   { background: rgba(255,255,255,.15); color: #fff; border-color: rgba(255,255,255,.4); }
.pf-btn-link    { background: transparent; color: var(--pf-primary); padding-left: 0; padding-right: 0; }

.pf-btn:hover { transform: translateY(-1px); box-shadow: var(--pf-shadow-md); }
.pf-btn-link:hover { transform: none; box-shadow: none; opacity: .8; }

/* Ripple effect */
.pf-btn-ripple { overflow: hidden; }
.pf-btn-ripple::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 0; height: 0;
    border-radius: 50%;
    background: rgba(255,255,255,.3);
    transform: translate(-50%,-50%);
    transition: width .4s ease, height .4s ease, opacity .4s ease;
    opacity: 0;
}
.pf-btn-ripple:active::before {
    width: 300px; height: 300px; opacity: 1;
}

/* ================================================================
   SCROLL ANIMATIONEN
   ================================================================ */

[data-pf-animate] {
    opacity: 0;
    transition-duration: .7s;
    transition-timing-function: cubic-bezier(.25,.46,.45,.94);
    transition-property: opacity, transform;
}

[data-pf-animate="fade-up"]    { transform: translateY(30px); }
[data-pf-animate="fade-down"]  { transform: translateY(-30px); }
[data-pf-animate="fade-left"]  { transform: translateX(30px); }
[data-pf-animate="fade-right"] { transform: translateX(-30px); }
[data-pf-animate="zoom-in"]    { transform: scale(.92); }
[data-pf-animate="zoom-out"]   { transform: scale(1.08); }
[data-pf-animate="flip-up"]    { transform: perspective(600px) rotateX(15deg); }

[data-pf-animate].pf-animated {
    opacity: 1;
    transform: none;
}

/* Stagger delays */
[data-pf-delay="100"] { transition-delay: .1s; }
[data-pf-delay="200"] { transition-delay: .2s; }
[data-pf-delay="300"] { transition-delay: .3s; }
[data-pf-delay="400"] { transition-delay: .4s; }
[data-pf-delay="500"] { transition-delay: .5s; }
[data-pf-delay="600"] { transition-delay: .6s; }

/* ================================================================
   RESPONSIVE GRID — Utility
   ================================================================ */

.pf-grid { display: grid; gap: 2rem; }
.pf-grid-2 { grid-template-columns: repeat(2, 1fr); }
.pf-grid-3 { grid-template-columns: repeat(3, 1fr); }
.pf-grid-4 { grid-template-columns: repeat(4, 1fr); }
.pf-grid-5 { grid-template-columns: repeat(5, 1fr); }
.pf-grid-6 { grid-template-columns: repeat(6, 1fr); }
.pf-grid-auto { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

/* ================================================================
   RESPONSIVE BREAKPOINTS
   ================================================================ */

/* Tablet: ≤ 1024px */
@media (max-width: 1024px) {
    .pf-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .pf-grid-5 { grid-template-columns: repeat(3, 1fr); }
    .pf-grid-6 { grid-template-columns: repeat(3, 1fr); }
}

/* Mobile: ≤ 768px */
@media (max-width: 768px) {
    .pf-grid-2,
    .pf-grid-3,
    .pf-grid-4,
    .pf-grid-5,
    .pf-grid-6 { grid-template-columns: 1fr; }

    /* Block padding reduzieren */
    section { padding-left: 1.25rem !important; padding-right: 1.25rem !important; }

    /* Hero */
    .pf-hero h1 { font-size: clamp(1.8rem, 8vw, 2.5rem) !important; }
    .pf-hero p  { font-size: 1rem !important; }

    /* Text+Bild: Stack statt Grid */
    .pf-text-image-grid {
        grid-template-columns: 1fr !important;
        direction: ltr !important;
    }
    .pf-text-image-grid > * { direction: ltr !important; }

    /* Buttons: Stack */
    .pf-btn-group { flex-direction: column; align-items: stretch !important; }
    .pf-btn-group .pf-btn { justify-content: center; }

    /* Pricing: Stack */
    .pf-pricing-grid { grid-template-columns: 1fr !important; }
    .pf-pricing-grid > div { transform: none !important; }

    /* Team */
    .pf-team-grid { grid-template-columns: repeat(2, 1fr) !important; }

    /* Logo Grid */
    .pf-logo-grid { grid-template-columns: repeat(3, 1fr) !important; }

    /* Stats */
    .pf-stats-grid { grid-template-columns: repeat(2, 1fr) !important; }

    /* Countdown */
    .pf-countdown-grid { gap: .75rem !important; }
    .pf-countdown-grid > div { min-width: 70px !important; padding: .75rem 1rem !important; }

    /* Tabs */
    .pf-tabs-nav { overflow-x: auto; }

    /* Timeline */
    .pf-timeline { padding-left: 1.5rem !important; }
}

/* Small Mobile: ≤ 480px */
@media (max-width: 480px) {
    .pf-team-grid   { grid-template-columns: repeat(2, 1fr) !important; }
    .pf-stats-grid  { grid-template-columns: 1fr 1fr !important; }
    .pf-logo-grid   { grid-template-columns: repeat(2, 1fr) !important; }
}

/* ================================================================
   SCROLL TO TOP BUTTON
   ================================================================ */

#pf-scroll-top {
    position: fixed; bottom: 2rem; right: 2rem;
    width: 3rem; height: 3rem;
    background: var(--pf-primary); color: #fff;
    border: none; border-radius: 50%;
    cursor: pointer; font-size: 1.2rem;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none;
    transition: opacity .3s, transform .3s;
    box-shadow: var(--pf-shadow-md);
    z-index: 999;
}
#pf-scroll-top.visible { opacity: 1; pointer-events: all; }
#pf-scroll-top:hover { transform: translateY(-3px); box-shadow: var(--pf-shadow-lg); }

/* ================================================================
   READING PROGRESS BAR
   ================================================================ */

#pf-progress {
    position: fixed; top: 0; left: 0; right: 0;
    height: 3px; background: var(--pf-primary);
    transform-origin: left;
    transform: scaleX(0);
    transition: transform .1s linear;
    z-index: 9999;
}

/* ================================================================
   RICH TEXT STYLES
   ================================================================ */

.pf-rich-text h1,.pf-rich-text h2,.pf-rich-text h3,.pf-rich-text h4 {
    font-weight: 700; margin: 1.5rem 0 .75rem; line-height: 1.25;
}
.pf-rich-text h2 { font-size: clamp(1.3rem, 3vw, 1.8rem); }
.pf-rich-text h3 { font-size: clamp(1.1rem, 2.5vw, 1.4rem); }
.pf-rich-text p  { margin-bottom: 1rem; }
.pf-rich-text ul, .pf-rich-text ol { padding-left: 1.5rem; margin-bottom: 1rem; }
.pf-rich-text li { margin-bottom: .4rem; }
.pf-rich-text a  { color: var(--pf-primary); text-decoration: underline; }
.pf-rich-text strong { font-weight: 700; }
.pf-rich-text em { font-style: italic; }
.pf-rich-text blockquote {
    border-left: 4px solid var(--pf-primary);
    padding: .75rem 1.25rem; margin: 1.5rem 0;
    font-style: italic; color: #6b7280;
    background: rgba(59,130,246,.05); border-radius: 0 8px 8px 0;
}
.pf-rich-text img { max-width: 100%; border-radius: var(--pf-radius); margin: 1rem 0; }
.pf-rich-text table { width: 100%; border-collapse: collapse; margin-bottom: 1rem; }
.pf-rich-text th, .pf-rich-text td { padding: .6rem .9rem; border: 1px solid #e5e7eb; text-align: left; }
.pf-rich-text th { background: #f9fafb; font-weight: 600; }
.pf-rich-text hr { border: none; border-top: 1px solid #e5e7eb; margin: 2rem 0; }
.pf-rich-text code { background: #f3f4f6; padding: .15rem .4rem; border-radius: 4px; font-size: .9em; }
.pf-rich-text pre { background: #1f2937; color: #e5e7eb; padding: 1.25rem; border-radius: 8px; overflow-x: auto; margin-bottom: 1rem; }
.pf-rich-text pre code { background: none; padding: 0; }

/* ================================================================
   UTILITY
   ================================================================ */

.pf-text-center { text-align: center; }
.pf-text-left   { text-align: left; }
.pf-text-right  { text-align: right; }
.pf-sr-only     { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }