/* =====================================================================
   SMTPly — Landing Page Styles
   Custom CSS, no frameworks. Mobile-first, responsive, fast.
   Dark mode via prefers-color-scheme + manual [data-theme] override.
   ===================================================================== */

:root {
    color-scheme: light dark;

    --color-bg:           #ffffff;
    --color-bg-soft:      #f8fafc;
    --color-bg-elev:      #ffffff;
    --color-bg-dark:      #0f172a;
    --color-bg-darker:    #020617;
    --color-text:         #0f172a;
    --color-text-muted:   #475569;
    --color-text-invert:  #f1f5f9;
    --color-text-footer:  #94a3b8;
    --color-border:       #e2e8f0;
    --color-border-dark:  #1e293b;
    --color-primary:      #1e40af;
    --color-primary-hover:#1d4ed8;
    --color-primary-soft: rgba(59, 130, 246, 0.1);
    --color-primary-soft2:rgba(59, 130, 246, 0.12);
    --color-accent:       #3b82f6;
    --color-success:      #10b981;
    --color-warning:      #f59e0b;
    --color-danger:       #ef4444;

    --header-bg:          rgba(255, 255, 255, 0.92);
    --hero-gradient:      radial-gradient(ellipse at top, rgba(59, 130, 246, 0.08), transparent 60%),
                          linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    --placeholder-stripe: repeating-linear-gradient(45deg, #f1f5f9, #f1f5f9 10px, #e2e8f0 10px, #e2e8f0 20px);

    --radius:             12px;
    --radius-lg:          20px;
    --shadow-sm:          0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow:             0 4px 20px rgba(15, 23, 42, 0.08);
    --shadow-lg:          0 20px 60px rgba(15, 23, 42, 0.12);
    --max-width:          1200px;
    --font-sans:          -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                          "Helvetica Neue", Arial, sans-serif;
    --font-mono:          ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* Dark palette — applied manually via html[data-theme="dark"]
   and automatically via @media (prefers-color-scheme: dark) below. */
:root[data-theme="dark"] {
    --color-bg:           #0b1220;
    --color-bg-soft:      #111a2e;
    --color-bg-elev:      #142038;
    --color-bg-dark:      #060b18;
    --color-bg-darker:    #030714;
    --color-text:         #e2e8f0;
    --color-text-muted:   #94a3b8;
    --color-text-invert:  #f1f5f9;
    --color-text-footer:  #94a3b8;
    --color-border:       #1e293b;
    --color-border-dark:  #0b1324;
    --color-primary:      #3b82f6;
    --color-primary-hover:#60a5fa;
    --color-primary-soft: rgba(59, 130, 246, 0.16);
    --color-primary-soft2:rgba(59, 130, 246, 0.22);
    --color-accent:       #60a5fa;

    --header-bg:          rgba(11, 18, 32, 0.85);
    --hero-gradient:      radial-gradient(ellipse at top, rgba(59, 130, 246, 0.18), transparent 60%),
                          linear-gradient(180deg, #0b1220 0%, #111a2e 100%);
    --placeholder-stripe: repeating-linear-gradient(45deg, #111a2e, #111a2e 10px, #1e293b 10px, #1e293b 20px);

    --shadow-sm:          0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow:             0 4px 20px rgba(0, 0, 0, 0.5);
    --shadow-lg:          0 20px 60px rgba(0, 0, 0, 0.6);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --color-bg:           #0b1220;
        --color-bg-soft:      #111a2e;
        --color-bg-elev:      #142038;
        --color-bg-dark:      #060b18;
        --color-bg-darker:    #030714;
        --color-text:         #e2e8f0;
        --color-text-muted:   #94a3b8;
        --color-text-invert:  #f1f5f9;
        --color-text-footer:  #94a3b8;
        --color-border:       #1e293b;
        --color-border-dark:  #0b1324;
        --color-primary:      #3b82f6;
        --color-primary-hover:#60a5fa;
        --color-primary-soft: rgba(59, 130, 246, 0.16);
        --color-primary-soft2:rgba(59, 130, 246, 0.22);
        --color-accent:       #60a5fa;

        --header-bg:          rgba(11, 18, 32, 0.85);
        --hero-gradient:      radial-gradient(ellipse at top, rgba(59, 130, 246, 0.18), transparent 60%),
                              linear-gradient(180deg, #0b1220 0%, #111a2e 100%);
        --placeholder-stripe: repeating-linear-gradient(45deg, #111a2e, #111a2e 10px, #1e293b 10px, #1e293b 20px);

        --shadow-sm:          0 1px 2px rgba(0, 0, 0, 0.4);
        --shadow:             0 4px 20px rgba(0, 0, 0, 0.5);
        --shadow-lg:          0 20px 60px rgba(0, 0, 0, 0.6);
    }
}

* { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 17px;
    line-height: 1.65;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.2s, color 0.2s;
}

img { max-width: 100%; height: auto; }

h1, h2, h3, h4 {
    line-height: 1.2;
    margin: 0 0 0.5em;
    color: var(--color-text);
    letter-spacing: -0.02em;
    overflow-wrap: break-word;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 4vw, 2.5rem); font-weight: 700; }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.35rem); font-weight: 600; }

p { margin: 0 0 1em; overflow-wrap: break-word; }

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.15s;
}
a:hover { color: var(--color-primary-hover); text-decoration: underline; }

code, pre {
    font-family: var(--font-mono);
    font-size: 0.92em;
}
code {
    background: var(--color-bg-soft);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--color-border);
    word-break: break-word;
}
pre {
    background: var(--color-bg-dark);
    color: var(--color-text-invert);
    padding: 1.2rem;
    border-radius: var(--radius);
    overflow-x: auto;
    margin: 1em 0;
    -webkit-overflow-scrolling: touch;
}
pre code {
    background: transparent;
    border: none;
    padding: 0;
    color: inherit;
    white-space: pre;
    word-break: normal;
}

/* --------------------------------------------------------------
   Layout helpers
   -------------------------------------------------------------- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.25rem;
}
@media (min-width: 640px) {
    .container { padding: 0 1.5rem; }
}

.section {
    padding: 3rem 0;
}
@media (min-width: 768px) {
    .section { padding: 4.5rem 0; }
}
@media (min-width: 1024px) {
    .section { padding: 5rem 0; }
}

.section-sm { padding: 2rem 0; }
@media (min-width: 768px) {
    .section-sm { padding: 3rem 0; }
}

.section-dark {
    background: var(--color-bg-dark);
    color: var(--color-text-invert);
}
.section-dark h1,
.section-dark h2,
.section-dark h3 { color: var(--color-text-invert); }
.section-dark p { color: #cbd5e1; }
.section-dark table { color: var(--color-text-invert); border-color: rgba(255,255,255,0.12); }
.section-dark th { color: #94a3b8; background: transparent; border-color: rgba(255,255,255,0.1); }
.section-dark td { border-color: rgba(255,255,255,0.08); }
.section-dark tr:hover td { background: rgba(255,255,255,0.04); }

.section-soft {
    background: var(--color-bg-soft);
}

.text-center { text-align: center; }
.text-muted  { color: var(--color-text-muted); }

.lead {
    font-size: clamp(1.05rem, 2.5vw, 1.2rem);
    color: var(--color-text-muted);
    max-width: 42em;
    margin-left: auto;
    margin-right: auto;
}

/* --------------------------------------------------------------
   Header / navigation
   -------------------------------------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--header-bg);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--color-border);
}
.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.4rem 0;
    gap: 0.75rem;
    position: relative;
}
@media (min-width: 860px) {
    .nav-wrap { padding: 0.5rem 0; gap: 2rem; }
}
.brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--color-text);
    text-decoration: none;
    flex-shrink: 0;
    margin-left: 1rem;
}
.brand img { height: 88px; width: auto; }
@media (min-width: 860px) {
    .brand img { height: 110px; }
}
.brand:hover { text-decoration: none; }

/* Theme-aware logo swap */
.logo-dark  { display: none; }
.logo-light { display: block; }
:root[data-theme="dark"] .logo-light { display: none; }
:root[data-theme="dark"] .logo-dark  { display: block; }
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .logo-light { display: none; }
    :root:not([data-theme="light"]) .logo-dark  { display: block; }
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.nav {
    display: none;
    gap: 0.25rem;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav a:not(.btn) {
    display: inline-block;
    color: var(--color-text);
    padding: 0.5rem 0.9rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.97rem;
    text-decoration: none;
}
.nav a:not(.btn):hover {
    background: var(--color-bg-soft);
    color: var(--color-primary);
    text-decoration: none;
}
.nav a:not(.btn).active {
    color: var(--color-primary);
}

.lang-switch {
    display: flex;
    gap: 4px;
    font-size: 0.85rem;
    background: var(--color-bg-soft);
    padding: 3px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
}
.lang-switch a {
    padding: 3px 10px;
    border-radius: 5px;
    color: var(--color-text-muted);
    font-weight: 600;
    text-decoration: none;
}
.lang-switch a.active {
    background: var(--color-bg-elev);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
}

.nav-toggle,
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 0;
    cursor: pointer;
    color: var(--color-text);
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    transition: background 0.15s, border-color 0.15s;
}
.nav-toggle:hover,
.theme-toggle:hover {
    background: var(--color-bg-soft);
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.nav-toggle svg,
.theme-toggle svg { display: block; width: 22px; height: 22px; }

.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .theme-toggle .icon-sun  { display: block; }
    :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}

@media (min-width: 860px) {
    .nav { display: flex; }
    .nav-toggle { display: none; }
}

.nav.open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 0.5rem 1.25rem 1rem;
    gap: 4px;
    box-shadow: var(--shadow);
    max-height: calc(100vh - 72px);
    overflow-y: auto;
}
.nav.open a:not(.btn) {
    width: 100%;
    padding: 0.7rem 0.9rem;
}
.nav.open .btn {
    justify-content: center;
    margin-top: 0.25rem;
}
.nav.open .lang-switch {
    align-self: flex-start;
    margin-top: 0.5rem;
    margin-left: 0.9rem;
}

/* --------------------------------------------------------------
   Buttons
   -------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.4rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.1s, background 0.15s, box-shadow 0.15s;
    white-space: nowrap;
    max-width: 100%;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
    background: var(--color-primary);
    color: #ffffff;
    box-shadow: 0 6px 20px rgba(30, 64, 175, 0.25);
}
.btn-primary:hover {
    background: var(--color-primary-hover);
    color: #ffffff;
    box-shadow: 0 10px 28px rgba(30, 64, 175, 0.35);
}

.btn-secondary {
    background: var(--color-bg);
    color: var(--color-text);
    border-color: var(--color-border);
}
.btn-secondary:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: var(--color-bg-soft);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-text-invert);
    border-color: rgba(255, 255, 255, 0.2);
}
.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.16);
    color: #ffffff;
}

.btn-lg {
    padding: 1rem 1.8rem;
    font-size: 1.05rem;
}
@media (min-width: 768px) {
    .btn-lg { padding: 1.05rem 2rem; font-size: 1.1rem; }
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

/* --------------------------------------------------------------
   Hero
   -------------------------------------------------------------- */
.hero {
    padding: 3rem 0 4rem;
    background: var(--hero-gradient);
}
@media (min-width: 768px) {
    .hero { padding: 4rem 0 5rem; }
}
@media (min-width: 1024px) {
    .hero { padding: 5rem 0 6rem; }
}
.hero-grid {
    display: grid;
    gap: 2rem;
    align-items: center;
}
@media (min-width: 768px) {
    .hero-grid { gap: 3rem; }
}
@media (min-width: 960px) {
    .hero-grid { grid-template-columns: 1.1fr 1fr; }
}
.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.2rem;
}
.hero h1 {
    margin-bottom: 1.2rem;
}
.hero .lead {
    font-size: clamp(1.1rem, 2.5vw, 1.25rem);
    margin-left: 0;
    margin-right: 0;
    max-width: 36em;
}
.hero-cta {
    margin-top: 2rem;
}
.hero-meta {
    margin-top: 1rem;
    font-size: 0.88rem;
    color: var(--color-text-muted);
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
}
.hero-meta span::before {
    content: "✓";
    color: var(--color-success);
    font-weight: 700;
    margin-right: 4px;
}

.hero-visual {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--color-bg-dark);
    color: var(--color-text-invert);
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    line-height: 1.7;
    overflow-x: auto;
}
@media (min-width: 768px) {
    .hero-visual { padding: 1.2rem; font-size: 0.82rem; }
}
.hero-visual .term-line    { opacity: 0.85; white-space: nowrap; }
.hero-visual .term-line.ok { color: #6ee7b7; }
.hero-visual .term-line.warn{ color: #fbbf24; }

/* --------------------------------------------------------------
   Feature grid
   -------------------------------------------------------------- */
.feature-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
    margin-top: 2rem;
}
@media (min-width: 640px) {
    .feature-grid {
        gap: 1.5rem;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        margin-top: 3rem;
    }
}
.feature {
    background: var(--color-bg-elev);
    border: 1px solid var(--color-border);
    padding: 1.5rem;
    border-radius: var(--radius);
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
@media (min-width: 640px) {
    .feature { padding: 1.75rem; }
}
.feature:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
    border-color: rgba(59, 130, 246, 0.4);
}
.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-primary-soft2);
    color: var(--color-primary);
    border-radius: 10px;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}
.feature h3 {
    margin-bottom: 0.5rem;
    font-size: 1.15rem;
}
.feature p {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 0.97rem;
}

/* --------------------------------------------------------------
   Two-column explanation blocks
   -------------------------------------------------------------- */
.split {
    display: grid;
    gap: 2rem;
    align-items: center;
    margin: 2rem 0;
}
@media (min-width: 768px) {
    .split { gap: 3rem; margin: 3rem 0; }
}
@media (min-width: 860px) {
    .split { grid-template-columns: 1fr 1fr; }
    .split.reverse > :first-child { order: 2; }
}
.split img, .split .split-visual {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
}

.split-visual {
    background: var(--color-bg-dark);
    color: var(--color-text-invert);
    padding: 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.8;
    min-height: 220px;
    overflow-x: auto;
}
@media (min-width: 640px) {
    .split-visual { padding: 1.5rem; font-size: 0.85rem; }
}

/* --------------------------------------------------------------
   Pricing / download card
   -------------------------------------------------------------- */
.pricing-wrap {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    max-width: 900px;
    margin: 2.5rem auto 0;
}
.price-card {
    background: var(--color-bg-elev);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
}
@media (min-width: 640px) {
    .price-card { padding: 2rem; }
}
.price-card.featured {
    border-color: var(--color-primary);
    position: relative;
    box-shadow: 0 20px 60px rgba(30, 64, 175, 0.15);
}
.price-card.featured::before {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}
.price-card h3 {
    margin-top: 0;
    font-size: 1.25rem;
}
@media (min-width: 640px) {
    .price-card h3 { font-size: 1.35rem; }
}
.price-tag {
    font-size: clamp(2.2rem, 6vw, 2.8rem);
    font-weight: 800;
    margin: 1rem 0 0.25rem;
    color: var(--color-text);
    letter-spacing: -0.03em;
}
.price-tag small {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-left: 4px;
}
.price-sub {
    color: var(--color-text-muted);
    font-size: 0.92rem;
    margin-bottom: 1.5rem;
}
.price-list {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem;
}
.price-list li {
    padding: 0.5rem 0;
    padding-left: 1.8rem;
    position: relative;
    color: var(--color-text);
    font-size: 0.98rem;
}
.price-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 700;
}
.price-list li.excluded { color: var(--color-text-muted); }
.price-list li.excluded::before {
    content: "–";
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------
   FAQ / accordion
   -------------------------------------------------------------- */
.faq {
    max-width: 800px;
    margin: 2.5rem auto 0;
}
.faq details {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    background: var(--color-bg-elev);
    transition: border-color 0.2s;
}
.faq details[open] {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}
.faq summary {
    padding: 1rem 1.25rem;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}
@media (min-width: 640px) {
    .faq summary { font-size: 1.05rem; }
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
    content: "+";
    font-size: 1.5rem;
    color: var(--color-primary);
    font-weight: 400;
    transition: transform 0.2s;
    flex-shrink: 0;
    line-height: 1;
}
.faq details[open] summary::after { content: "–"; }
.faq-body {
    padding: 0 1.25rem 1.25rem;
    color: var(--color-text-muted);
}
.faq-body p:last-child { margin-bottom: 0; }

/* --------------------------------------------------------------
   Doc/support page styles
   -------------------------------------------------------------- */
.doc-layout {
    display: grid;
    gap: 2rem;
}
@media (min-width: 960px) {
    .doc-layout { grid-template-columns: 240px 1fr; gap: 3rem; }
}
.doc-toc {
    font-size: 0.95rem;
    padding: 1rem;
    background: var(--color-bg-soft);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}
@media (min-width: 960px) {
    .doc-toc {
        position: sticky;
        top: 80px;
        align-self: start;
        background: transparent;
        border: none;
        padding: 0;
    }
}
.doc-toc h4 {
    margin: 0 0 0.6rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
}
.doc-toc ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
@media (min-width: 960px) {
    .doc-toc ul { border-left: 2px solid var(--color-border); }
}
.doc-toc li { margin: 0; }
.doc-toc a {
    display: block;
    padding: 0.4rem 0.9rem;
    color: var(--color-text-muted);
    border-left: 2px solid transparent;
    text-decoration: none;
    font-size: 0.92rem;
}
@media (min-width: 960px) {
    .doc-toc a { margin-left: -2px; }
}
.doc-toc a:hover,
.doc-toc a.active {
    color: var(--color-primary);
    border-left-color: var(--color-primary);
}

.doc-content { min-width: 0; }
.doc-content h2 {
    margin-top: 2.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
    scroll-margin-top: 90px;
}
.doc-content h2:first-child {
    border-top: none;
    padding-top: 0;
    margin-top: 0;
}
.doc-content h3 {
    margin-top: 2rem;
    scroll-margin-top: 90px;
}
.doc-content ul, .doc-content ol {
    padding-left: 1.3rem;
}
.doc-content li { margin-bottom: 0.4rem; }
.doc-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 1.2rem 0;
    font-size: 0.92rem;
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: normal;
}
@media (min-width: 640px) {
    .doc-content table { display: table; font-size: 0.95rem; }
}
.doc-content th, .doc-content td {
    border: 1px solid var(--color-border);
    padding: 0.55rem 0.75rem;
    text-align: left;
    vertical-align: top;
}
@media (min-width: 640px) {
    .doc-content th, .doc-content td { padding: 0.6rem 0.9rem; }
}
.doc-content th {
    background: var(--color-bg-soft);
    font-weight: 600;
}
.doc-content blockquote {
    margin: 1.2rem 0;
    padding: 0.9rem 1.2rem;
    border-left: 4px solid var(--color-accent);
    background: var(--color-bg-soft);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--color-text-muted);
}

.callout {
    display: flex;
    gap: 0.9rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin: 1.5rem 0;
    border: 1px solid;
    line-height: 1.55;
}
.callout-info     { background: rgba(59, 130, 246, 0.08); border-color: rgba(59, 130, 246, 0.25); }
.callout-warning  { background: rgba(245, 158, 11, 0.08); border-color: rgba(245, 158, 11, 0.3); }
.callout-success  { background: rgba(16, 185, 129, 0.08); border-color: rgba(16, 185, 129, 0.3); }
:root[data-theme="dark"] .callout-info    { background: rgba(59, 130, 246, 0.12); border-color: rgba(59, 130, 246, 0.35); }
:root[data-theme="dark"] .callout-warning { background: rgba(245, 158, 11, 0.12); border-color: rgba(245, 158, 11, 0.4); }
:root[data-theme="dark"] .callout-success { background: rgba(16, 185, 129, 0.12); border-color: rgba(16, 185, 129, 0.4); }
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .callout-info    { background: rgba(59, 130, 246, 0.12); border-color: rgba(59, 130, 246, 0.35); }
    :root:not([data-theme="light"]) .callout-warning { background: rgba(245, 158, 11, 0.12); border-color: rgba(245, 158, 11, 0.4); }
    :root:not([data-theme="light"]) .callout-success { background: rgba(16, 185, 129, 0.12); border-color: rgba(16, 185, 129, 0.4); }
}
.callout p:first-child { margin-top: 0; }
.callout p:last-child  { margin-bottom: 0; }
.callout strong { color: var(--color-text); }

/* --------------------------------------------------------------
   Screenshots
   -------------------------------------------------------------- */
.screenshot-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    margin-top: 2.5rem;
}
.screenshot {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--color-bg-elev);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}
.screenshot:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}
.screenshot img {
    width: 100%;
    height: auto;
    display: block;
    background: var(--color-bg-soft);
}
.screenshot-caption {
    padding: 0.9rem 1.1rem;
    font-size: 0.92rem;
    color: var(--color-text-muted);
}
.screenshot-caption strong {
    color: var(--color-text);
    display: block;
    margin-bottom: 0.2rem;
}

/* Placeholder for missing screenshot images */
.screenshot-placeholder {
    aspect-ratio: 16 / 10;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--placeholder-stripe);
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-family: var(--font-mono);
    text-align: center;
    padding: 1rem;
}

/* --------------------------------------------------------------
   Trust / stats section
   -------------------------------------------------------------- */
.trust-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    margin-top: 2.5rem;
    text-align: center;
}
.trust-item .number {
    font-size: clamp(2rem, 5vw, 2.5rem);
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}
.trust-item .label {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* --------------------------------------------------------------
   CTA section
   -------------------------------------------------------------- */
.cta-box {
    background: linear-gradient(135deg, var(--color-primary) 0%, #3730a3 100%);
    color: #ffffff;
    padding: 2.5rem 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    margin: 3rem auto;
    max-width: var(--max-width);
    box-shadow: var(--shadow-lg);
}
@media (min-width: 768px) {
    .cta-box { padding: 3.5rem 2rem; margin: 4rem auto; }
}
.cta-box h2 { color: #ffffff; }
.cta-box p { color: #dbeafe; max-width: 42em; margin-left: auto; margin-right: auto; }
.cta-box .btn-primary {
    background: #ffffff;
    color: var(--color-primary);
}
.cta-box .btn-primary:hover {
    background: #dbeafe;
    color: var(--color-primary);
}
.cta-box .btn-ghost {
    border-color: rgba(255, 255, 255, 0.4);
    color: #ffffff;
}

/* --------------------------------------------------------------
   Footer
   -------------------------------------------------------------- */
.site-footer {
    background: var(--color-bg-darker);
    color: var(--color-text-footer);
    padding: 3rem 0 1.5rem;
    font-size: 0.92rem;
}
.site-footer h4 {
    color: #ffffff;
    font-size: 0.95rem;
    margin-bottom: 1rem;
}
.footer-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: 1fr;
    margin-bottom: 2rem;
}
@media (min-width: 560px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
    }
}
@media (min-width: 860px) {
    .footer-grid {
        grid-template-columns: 1.3fr repeat(3, 1fr);
        gap: 2.5rem;
    }
}
.footer-grid ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-grid li { margin-bottom: 0.45rem; }
.footer-grid a {
    color: var(--color-text-footer);
    text-decoration: none;
}
.footer-grid a:hover { color: #ffffff; }
.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.8rem;
}
.footer-brand img { height: 36px; width: auto; }
.footer-bottom {
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border-dark);
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: space-between;
    font-size: 0.85rem;
    color: #64748b;
}

/* Icon has transparent background — no pill needed in any theme */

/* App screenshots */
.app-screenshot {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0,0,0,0.18), 0 2px 8px rgba(0,0,0,0.10);
    border: 1px solid var(--color-border);
    line-height: 0;
    cursor: pointer;
}
.app-screenshot img { width: 100%; height: auto; display: block; }
/* Theme-aware screenshot swap — more specific than .app-screenshot img */
.app-screenshot img.scr-dark              { display: none; }
.app-screenshot img.scr-light             { display: block; }
:root[data-theme="dark"] .app-screenshot img.scr-light { display: none; }
:root[data-theme="dark"] .app-screenshot img.scr-dark  { display: block; }
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .app-screenshot img.scr-light { display: none; }
    :root:not([data-theme="light"]) .app-screenshot img.scr-dark  { display: block; }
}

/* Azure / inline tutorial screenshots */
.doc-screenshot {
    display: block;
    margin: 1rem 0 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    /* Halbe Größe der Content-Spalte; auf schmalen Screens volle Breite */
    max-width: 50%;
    height: auto;
    cursor: zoom-in;
    background: var(--color-bg-elev);
}
/* Installer-Dialoge sind kleinere Inno-Setup-Fenster — noch kompakter */
.doc-screenshot.small { max-width: 40%; }
@media (max-width: 768px) {
    .doc-screenshot,
    .doc-screenshot.small { max-width: 100%; }
}
.doc-screenshot-caption {
    display: block;
    margin: -0.75rem 0 1.5rem;
    font-size: 0.88rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* Lightbox overlay */
.lightbox-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.88);
    z-index: 999;
    align-items: center;
    justify-content: center;
    cursor: zoom-out;
    padding: 1.5rem;
}
.lightbox-overlay.open { display: flex; }
.lightbox-overlay img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: 8px;
    box-shadow: 0 24px 80px rgba(0,0,0,0.6);
    object-fit: contain;
}
.lightbox-close {
    position: fixed;
    top: 1rem;
    right: 1.25rem;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0.8;
    z-index: 1000;
}
.lightbox-close:hover { opacity: 1; }

/* --------------------------------------------------------------
   Contact form
   -------------------------------------------------------------- */
.form-group { margin-bottom: 1.5rem; }

.form-label {
    display: block;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.4rem;
    color: var(--color-text);
}
.form-label span { color: var(--color-danger); margin-left: 2px; }

.form-input {
    width: 100%;
    padding: 0.7rem 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: 10px;
    background: var(--color-bg-elev);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.5;
    transition: border-color 0.15s, box-shadow 0.15s;
    -webkit-appearance: none;
}
.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-soft);
}
.form-input::placeholder { color: var(--color-text-muted); opacity: 0.75; }
textarea.form-input { resize: vertical; min-height: 140px; }

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-top: 0.25rem;
}
@media (min-width: 560px) {
    .radio-group { flex-direction: row; flex-wrap: wrap; gap: 0.5rem 1.25rem; }
}

.radio-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.97rem;
    color: var(--color-text);
    padding: 0.55rem 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-bg-elev);
    transition: border-color 0.15s, background 0.15s;
    user-select: none;
}
.radio-label:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
}
.radio-label input[type="radio"] {
    accent-color: var(--color-primary);
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}
.radio-label:has(input:checked) {
    border-color: var(--color-primary);
    background: var(--color-primary-soft2);
    color: var(--color-primary);
    font-weight: 600;
}

/* --------------------------------------------------------------
   Utility
   -------------------------------------------------------------- */
.grid-2 { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.mt-0   { margin-top: 0; }
.mb-0   { margin-bottom: 0; }
.mb-2   { margin-bottom: 2rem; }

/* --------------------------------------------------------------
   Prefers reduced motion
   -------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
}