/* ============================================================
   FlowRead · Liquid Glass Overlay
   Apple-inspired "Liquid Glass" material applied across all pages.
   This file is loaded AFTER each page's inline <style> block, so
   it intentionally overrides the baseline glass morphism with
   richer refraction, specular highlights and spring motion.
   ============================================================ */

:root {
    /* Liquid Glass materials — thin / regular / thick */
    --lg-thin-bg: rgba(255, 255, 255, 0.045);
    --lg-regular-bg: rgba(255, 255, 255, 0.07);
    --lg-thick-bg: rgba(255, 255, 255, 0.11);
    --lg-tint: rgba(180, 220, 255, 0.04);

    /* Borders: a bright top edge and a soft body edge (specular) */
    --lg-edge-bright: rgba(255, 255, 255, 0.55);
    --lg-edge-dim: rgba(255, 255, 255, 0.06);
    --lg-border: rgba(255, 255, 255, 0.14);
    --lg-border-strong: rgba(255, 255, 255, 0.28);

    /* Shadows — soft ambient + contact + inner highlights */
    --lg-shadow: 0 1px 0 rgba(255, 255, 255, 0.08) inset,
                 0 0 0 1px rgba(255, 255, 255, 0.04) inset,
                 0 18px 40px -16px rgba(0, 0, 0, 0.55),
                 0 8px 20px -10px rgba(0, 0, 0, 0.45),
                 0 2px 4px rgba(0, 0, 0, 0.25);
    --lg-shadow-raised: 0 1px 0 rgba(255, 255, 255, 0.12) inset,
                        0 0 0 1px rgba(255, 255, 255, 0.06) inset,
                        0 28px 60px -20px rgba(0, 0, 0, 0.6),
                        0 12px 28px -12px rgba(0, 0, 0, 0.45),
                        0 0 0 1px rgba(255, 255, 255, 0.04);
    --lg-glow: 0 0 60px rgba(0, 212, 255, 0.25),
               0 0 120px rgba(124, 58, 237, 0.18);

    /* Motion — Apple-style spring easings */
    --lg-spring: cubic-bezier(0.22, 1, 0.36, 1);
    --lg-spring-soft: cubic-bezier(0.32, 0.72, 0, 1);
    --lg-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Continuous corner radii (squircle feel) */
    --lg-radius-sm: 14px;
    --lg-radius-md: 22px;
    --lg-radius-lg: 30px;
    --lg-radius-xl: 40px;
    --lg-radius-pill: 999px;

    /* Mouse spotlight — set by JS, fallback keeps glass tasteful */
    --lg-mx: 50%;
    --lg-my: 50%;
}

/* ================= Global refinements ================= */
html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    background: #06060b;
}

/* ================= Living background ================= */
/* Slightly richer, more alive mesh with an extra soft blob
   that drifts independently — feels like light through glass. */
.mesh-gradient {
    background:
        radial-gradient(1200px 900px at 12% 10%, rgba(0, 175, 220, 0.18), transparent 60%),
        radial-gradient(1000px 800px at 88% 18%, rgba(124, 58, 237, 0.18), transparent 60%),
        radial-gradient(1100px 900px at 50% 100%, rgba(0, 200, 170, 0.14), transparent 60%),
        linear-gradient(160deg, #07070d 0%, #0a0a14 45%, #09070f 100%);
}

.mesh-gradient::after {
    background:
        radial-gradient(ellipse 55% 40% at 72% 55%, rgba(0, 212, 255, 0.12) 0%, transparent 55%),
        radial-gradient(ellipse 45% 45% at 22% 72%, rgba(168, 85, 247, 0.10) 0%, transparent 55%),
        radial-gradient(ellipse 35% 30% at 50% 30%, rgba(255, 255, 255, 0.04) 0%, transparent 60%);
    animation-duration: 28s;
    mix-blend-mode: screen;
}

/* Fine "grain" over the whole page — adds physicality to glass. */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.35;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.035 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ================= The Liquid Glass material ================= */
/* Applied to every existing glass surface via common selectors.
   Uses multi-filter backdrop + specular edge + mouse spotlight. */
.glass-card,
.feature-card,
.support-card,
.legal-section,
.contact-form,
.impressum-card,
.rsvp-demo,
.primary-contact-card,
.bug-template,
.faq-item {
    position: relative;
    background:
        radial-gradient(600px circle at var(--lg-mx) var(--lg-my), rgba(255, 255, 255, 0.08), transparent 40%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)) ,
        var(--lg-regular-bg) !important;
    backdrop-filter: blur(28px) saturate(180%) brightness(1.05) !important;
    -webkit-backdrop-filter: blur(28px) saturate(180%) brightness(1.05) !important;
    border: 1px solid var(--lg-border) !important;
    border-radius: var(--lg-radius-lg) !important;
    box-shadow: var(--lg-shadow) !important;
    transition: transform 0.55s var(--lg-spring),
                box-shadow 0.55s var(--lg-spring),
                background 0.55s var(--lg-spring),
                border-color 0.4s var(--lg-spring) !important;
    isolation: isolate;
    overflow: hidden;
}

/* Bright specular edge across the top — the hallmark of Liquid Glass */
.glass-card::before,
.feature-card::before,
.support-card::before,
.legal-section::before,
.contact-form::before,
.impressum-card::before,
.rsvp-demo::before,
.primary-contact-card::before,
.bug-template::before,
.faq-item::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.55) 0%,
        rgba(255, 255, 255, 0.08) 25%,
        rgba(255, 255, 255, 0) 55%,
        rgba(255, 255, 255, 0.04) 80%,
        rgba(255, 255, 255, 0.25) 100%
    );
    -webkit-mask: linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
    opacity: 0.9;
    z-index: 2;
}

/* Soft inner glow that tracks the cursor — refraction illusion */
.glass-card::after,
.feature-card::after,
.support-card::after,
.legal-section::after,
.contact-form::after,
.impressum-card::after,
.rsvp-demo::after,
.primary-contact-card::after,
.bug-template::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    background: radial-gradient(280px circle at var(--lg-mx) var(--lg-my),
        rgba(255, 255, 255, 0.12),
        rgba(255, 255, 255, 0) 60%);
    opacity: 0;
    transition: opacity 0.5s var(--lg-spring);
    z-index: 1;
    mix-blend-mode: soft-light;
}

.glass-card:hover::after,
.feature-card:hover::after,
.support-card:hover::after,
.legal-section:hover::after,
.contact-form:hover::after,
.impressum-card:hover::after,
.rsvp-demo:hover::after,
.primary-contact-card:hover::after,
.bug-template:hover::after {
    opacity: 1;
}

.glass-card:hover,
.feature-card:hover,
.support-card:hover,
.primary-contact-card:hover {
    transform: translateY(-8px) !important;
    background:
        radial-gradient(600px circle at var(--lg-mx) var(--lg-my), rgba(255, 255, 255, 0.12), transparent 40%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.03)) ,
        var(--lg-thick-bg) !important;
    border-color: var(--lg-border-strong) !important;
    box-shadow: var(--lg-shadow-raised), var(--lg-glow) !important;
}

/* Child elements sit above the decorative layers */
.glass-card > *,
.feature-card > *,
.support-card > *,
.legal-section > *,
.contact-form > *,
.impressum-card > *,
.rsvp-demo > *,
.primary-contact-card > *,
.bug-template > *,
.faq-item > * {
    position: relative;
    z-index: 3;
}

/* ================= Floating glass nav ================= */
header {
    padding-top: calc(env(safe-area-inset-top, 0px) + 0.9rem) !important;
    padding-bottom: 0.9rem !important;
    transition: padding 0.5s var(--lg-spring), transform 0.4s var(--lg-spring) !important;
}

header.scrolled {
    background: transparent !important;
    border-bottom: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}

header .header-content {
    max-width: 1180px !important;
    padding: 0.55rem 1rem 0.55rem 1.25rem !important;
    border-radius: var(--lg-radius-pill) !important;
    background: rgba(16, 18, 28, 0.45) !important;
    backdrop-filter: blur(30px) saturate(200%) brightness(1.1) !important;
    -webkit-backdrop-filter: blur(30px) saturate(200%) brightness(1.1) !important;
    border: 1px solid rgba(255, 255, 255, 0.09) !important;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.08) inset,
        0 12px 40px -12px rgba(0, 0, 0, 0.6),
        0 4px 12px -4px rgba(0, 0, 0, 0.4) !important;
    margin: 0 1rem !important;
    position: relative;
    overflow: visible;
}

header .header-content::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(120deg,
        rgba(255, 255, 255, 0.45) 0%,
        rgba(255, 255, 255, 0.04) 30%,
        rgba(255, 255, 255, 0) 60%,
        rgba(255, 255, 255, 0.25) 100%);
    -webkit-mask: linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
}

header.scrolled .header-content {
    background: rgba(10, 12, 20, 0.62) !important;
    transform: scale(0.985);
}

nav a {
    padding: 0.45rem 0.85rem !important;
    border-radius: var(--lg-radius-pill) !important;
    transition: background 0.35s var(--lg-spring), color 0.35s var(--lg-spring) !important;
}

nav a::after { display: none !important; }

nav a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff !important;
}

/* Pill language button */
.lang-btn {
    padding: 0.5rem 0.95rem !important;
    border-radius: var(--lg-radius-pill) !important;
    background: rgba(255, 255, 255, 0.06) !important;
    border: 1px solid rgba(255, 255, 255, 0.12) !important;
    backdrop-filter: blur(14px) saturate(180%);
    -webkit-backdrop-filter: blur(14px) saturate(180%);
    transition: all 0.4s var(--lg-spring) !important;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.11) !important;
    border-color: rgba(255, 255, 255, 0.28) !important;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.2), 0 0 0 1px rgba(255, 255, 255, 0.1) inset !important;
}

.lang-menu {
    background: rgba(18, 20, 30, 0.72) !important;
    backdrop-filter: blur(30px) saturate(200%) !important;
    -webkit-backdrop-filter: blur(30px) saturate(200%) !important;
    border: 1px solid rgba(255, 255, 255, 0.12) !important;
    border-radius: var(--lg-radius-md) !important;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.1) inset,
        0 20px 50px -10px rgba(0, 0, 0, 0.6) !important;
    padding: 0.35rem !important;
}

.lang-menu a {
    border-radius: var(--lg-radius-sm) !important;
    transition: all 0.3s var(--lg-spring) !important;
}

.lang-menu a:hover {
    background: rgba(255, 255, 255, 0.1) !important;
}

/* ================= Buttons ================= */
.btn-primary {
    border-radius: var(--lg-radius-pill) !important;
    background: linear-gradient(135deg, #00D4FF 0%, #00BCD4 45%, #7C3AED 100%) !important;
    background-size: 200% 200% !important;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.4) inset,
        0 -6px 16px rgba(124, 58, 237, 0.35) inset,
        0 10px 30px -8px rgba(0, 212, 255, 0.5),
        0 4px 14px -4px rgba(124, 58, 237, 0.4) !important;
    transition: transform 0.45s var(--lg-spring),
                box-shadow 0.45s var(--lg-spring),
                background-position 0.8s var(--lg-spring) !important;
    letter-spacing: 0.2px !important;
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.03) !important;
    background-position: 100% 100% !important;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.5) inset,
        0 -8px 20px rgba(124, 58, 237, 0.45) inset,
        0 18px 40px -8px rgba(0, 212, 255, 0.55),
        0 0 60px -10px rgba(124, 58, 237, 0.5) !important;
}

.btn-primary:active {
    transform: translateY(0) scale(0.97) !important;
    transition-duration: 0.15s !important;
}

.btn-secondary,
.copy-btn,
.btn-primary {
    position: relative !important;
    overflow: hidden !important;
}

.btn-secondary {
    border-radius: var(--lg-radius-pill) !important;
    background: rgba(255, 255, 255, 0.06) !important;
    backdrop-filter: blur(20px) saturate(180%) !important;
    -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
    border: 1px solid rgba(255, 255, 255, 0.16) !important;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.15) inset,
        0 10px 30px -10px rgba(0, 0, 0, 0.5) !important;
    transition: all 0.45s var(--lg-spring) !important;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.11) !important;
    border-color: rgba(255, 255, 255, 0.3) !important;
    transform: translateY(-2px) scale(1.03) !important;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.2) inset,
        0 18px 40px -12px rgba(0, 212, 255, 0.35),
        0 0 40px -10px rgba(124, 58, 237, 0.3) !important;
}

.btn-secondary:active { transform: scale(0.97) !important; }

/* Liquid ripple on click — appended to any .btn-primary / .btn-secondary */
.lg-ripple {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0) 70%);
    transform: translate(-50%, -50%) scale(0);
    pointer-events: none;
    animation: lgRipple 0.8s var(--lg-spring) forwards;
}

@keyframes lgRipple {
    to { transform: translate(-50%, -50%) scale(3.2); opacity: 0; }
}

/* ================= RSVP demo polish ================= */
.rsvp-demo {
    border-radius: var(--lg-radius-xl) !important;
    padding: 2.5rem 2rem !important;
    background:
        radial-gradient(600px circle at var(--lg-mx) var(--lg-my), rgba(0, 212, 255, 0.08), transparent 50%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02)),
        rgba(255, 255, 255, 0.05) !important;
}

.rsvp-word .orp {
    text-shadow:
        0 0 16px rgba(0, 212, 255, 0.6),
        0 0 40px rgba(0, 212, 255, 0.3) !important;
}

/* ================= Form fields ================= */
.form-group input,
.form-group textarea,
.form-group select,
.search-input,
input[type="text"],
input[type="email"],
textarea {
    background: rgba(255, 255, 255, 0.04) !important;
    border: 1px solid rgba(255, 255, 255, 0.12) !important;
    border-radius: var(--lg-radius-md) !important;
    backdrop-filter: blur(14px) saturate(160%);
    -webkit-backdrop-filter: blur(14px) saturate(160%);
    transition: all 0.35s var(--lg-spring) !important;
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset !important;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus,
.search-input:focus,
input:focus,
textarea:focus {
    border-color: rgba(0, 212, 255, 0.55) !important;
    background: rgba(255, 255, 255, 0.07) !important;
    box-shadow:
        0 0 0 4px rgba(0, 212, 255, 0.12),
        0 0 30px rgba(0, 212, 255, 0.25),
        0 1px 0 rgba(255, 255, 255, 0.08) inset !important;
}

/* ================= FAQ accordion ================= */
.faq-item {
    border-radius: var(--lg-radius-md) !important;
    overflow: hidden;
}

.faq-item.open {
    border-color: rgba(0, 212, 255, 0.35) !important;
    box-shadow: var(--lg-shadow-raised), 0 0 60px rgba(0, 212, 255, 0.18) !important;
}

.faq-question {
    padding: 1.2rem 1.4rem !important;
    transition: background 0.3s var(--lg-spring) !important;
}

.faq-question:hover {
    background: rgba(255, 255, 255, 0.05) !important;
}

.faq-answer {
    transition: max-height 0.6s var(--lg-spring), padding 0.5s var(--lg-spring) !important;
}

.toggle-icon {
    transition: transform 0.5s var(--lg-bounce) !important;
}

/* ================= Support page specifics ================= */
.primary-contact-card { border-radius: var(--lg-radius-xl) !important; }
.bug-template, .template-box {
    border-radius: var(--lg-radius-md) !important;
    background: rgba(0, 0, 0, 0.3) !important;
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
}

.copy-btn {
    border-radius: var(--lg-radius-pill) !important;
    transition: all 0.35s var(--lg-spring) !important;
}

/* ================= Footer ================= */
footer {
    background: linear-gradient(180deg, rgba(10, 10, 15, 0) 0%, rgba(6, 6, 11, 0.8) 40%, rgba(6, 6, 11, 0.95) 100%) !important;
    backdrop-filter: blur(24px) saturate(180%) !important;
    -webkit-backdrop-filter: blur(24px) saturate(180%) !important;
    border-top: 1px solid rgba(255, 255, 255, 0.06) !important;
    position: relative;
}

footer::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
}

.footer-section a {
    transition: color 0.3s var(--lg-spring), transform 0.3s var(--lg-spring) !important;
    display: inline-block;
}

.footer-section a:hover {
    color: #fff !important;
    transform: translateX(4px);
}

/* ================= Scroll reveal ================= */
.reveal {
    transition:
        opacity 0.9s var(--lg-spring),
        transform 0.9s var(--lg-spring),
        filter 0.9s var(--lg-spring) !important;
    filter: blur(6px);
}

.reveal.visible { filter: blur(0); }

/* ================= Hero heading refinement ================= */
.gradient-text {
    background: linear-gradient(120deg,
        #c8f4ff 0%,
        #ffffff 35%,
        #d8c5ff 65%,
        #8b5cf6 100%) !important;
    -webkit-background-clip: text !important;
    background-clip: text !important;
    background-size: 220% 220% !important;
    filter: drop-shadow(0 2px 30px rgba(0, 212, 255, 0.15));
}

.hero-icon {
    border-radius: 30px !important;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.3) inset,
        0 30px 70px -20px rgba(0, 0, 0, 0.6),
        0 0 0 1px rgba(255, 255, 255, 0.06),
        0 0 80px rgba(0, 212, 255, 0.25),
        0 0 140px rgba(124, 58, 237, 0.18) !important;
}

/* ================= Language screen — impressum ================= */
.impressum-card { border-radius: var(--lg-radius-xl) !important; }

/* ================= Scrollbar ================= */
*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 999px;
}
*::-webkit-scrollbar-thumb:hover { background: rgba(0, 212, 255, 0.4); }

/* ================= Mobile nav — full glass sheet ================= */
@media (max-width: 768px) {
    header .header-content {
        margin: 0 0.75rem !important;
        padding: 0.55rem 0.65rem 0.55rem 1rem !important;
    }

    nav.active {
        background: rgba(8, 8, 14, 0.72) !important;
        backdrop-filter: blur(40px) saturate(180%) !important;
        -webkit-backdrop-filter: blur(40px) saturate(180%) !important;
        border: 1px solid rgba(255, 255, 255, 0.12) !important;
        border-radius: var(--lg-radius-lg) !important;
        box-shadow:
            0 1px 0 rgba(255, 255, 255, 0.08) inset,
            0 20px 60px -20px rgba(0, 0, 0, 0.7),
            0 8px 24px -8px rgba(0, 0, 0, 0.45) !important;
    }

    nav a {
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: var(--lg-radius-md) !important;
        width: min(320px, 80%);
        max-width: 320px;
    }

    .sticky-cta {
        background: rgba(8, 8, 14, 0.7) !important;
        backdrop-filter: blur(30px) saturate(180%) !important;
        -webkit-backdrop-filter: blur(30px) saturate(180%) !important;
        border-top: 1px solid rgba(255, 255, 255, 0.08) !important;
    }
}

/* ================= Touch device tuning ================= */
@media (hover: none) and (pointer: coarse) {
    .glass-card:hover,
    .feature-card:hover,
    .support-card:hover,
    .primary-contact-card:hover {
        transform: none !important;
    }
    .glass-card::after,
    .feature-card::after,
    .support-card::after { display: none; }
}

/* ================= Reduced motion ================= */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        transition-duration: 0.001ms !important;
    }
    .reveal { filter: none; }
    body::before { display: none; }
}