/* ============================================ */
/* KOMM PUBLIC SITE — BASE STYLES & DESIGN SYSTEM */
/* ============================================ */

:root {
    /* Colors — Komm dark theme */
    --bg:             #0d0e12;
    --bg-raised:      #14151b;
    --bg-card:        #181920;
    --bg-card-hover:  #1e1f29;
    --bg-input:       #1c1c1e;
    --border:         #262733;
    --border-strong:  #3a3a45;
    --fg:             #f8f8f2;
    --fg-muted:       #bfbfc3;
    --fg-subtle:      #7e7f86;
    --accent:         #9580ff;
    --accent-hover:   #7f6dd9;
    --accent-bright:  #b8a4ff;
    --accent-dim:     #52468c;
    --accent-glow:    rgba(149, 128, 255, 0.14);
    --cyan:           #30d6e8;
    --success:        #8aff80;
    --success-bg:     rgba(138, 255, 128, 0.12);
    --danger:         #ff9580;
    --danger-bg:      rgba(255, 149, 128, 0.12);

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 10px -1px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 12px 28px -4px rgba(0, 0, 0, 0.55);
    --shadow-xl: 0 24px 60px -10px rgba(0, 0, 0, 0.65);
    --shadow-glow: 0 0 40px rgba(149, 128, 255, 0.18);

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 80px;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, 'Cascadia Code', Consolas, monospace;

    /* Layout */
    --navbar-height: 68px;
}

/* ============================================ */
/* RESET & BASE */
/* ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--navbar-height);
}

body.site-body {
    font-family: var(--font-family);
    color: var(--fg);
    background-color: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.site-main {
    position: relative;
    z-index: 1;
}

::selection {
    background: var(--accent-dim);
    color: var(--fg);
}

/* ============================================ */
/* AMBIENT BACKGROUND */
/* ============================================ */

.bg-animation {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.14;
    animation: orbFloat 22s infinite ease-in-out;
}

.orb1 {
    width: 520px;
    height: 520px;
    background: radial-gradient(circle, var(--accent), transparent 70%);
    top: -220px;
    left: -180px;
}

.orb2 {
    width: 420px;
    height: 420px;
    background: radial-gradient(circle, var(--cyan), transparent 70%);
    top: 45%;
    right: -170px;
    opacity: 0.08;
    animation-delay: -7s;
    animation-duration: 27s;
}

.orb3 {
    width: 620px;
    height: 620px;
    background: radial-gradient(circle, var(--accent-hover), transparent 70%);
    bottom: -280px;
    left: 28%;
    animation-delay: -13s;
    animation-duration: 32s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%      { transform: translate(90px, -80px) scale(1.08); }
    66%      { transform: translate(-60px, 90px) scale(0.94); }
}

@media (prefers-reduced-motion: reduce) {
    .orb { animation: none; }
    html { scroll-behavior: auto; }
}

/* ============================================ */
/* TYPOGRAPHY */
/* ============================================ */

.heading-xl {
    font-size: 58px;
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.02em;
    color: var(--fg);
}

.heading-lg {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.015em;
    color: var(--fg);
}

.heading-md {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
    color: var(--fg);
}

.heading-sm {
    font-size: 24px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--fg);
}

.text-lg { font-size: 19px; line-height: 1.65; color: var(--fg-muted); }
.text-md { font-size: 16px; line-height: 1.65; color: var(--fg-muted); }
.text-sm { font-size: 14px; line-height: 1.5;  color: var(--fg-subtle); }

.text-accent { color: var(--accent); }

.text-gradient {
    background: linear-gradient(120deg, var(--accent-bright) 0%, var(--accent) 45%, var(--cyan) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ============================================ */
/* BUTTONS */
/* ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    white-space: nowrap;
    font-family: var(--font-family);
}

.btn-primary {
    background: var(--accent);
    color: #14151b;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--accent-bright);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: rgba(149, 128, 255, 0.08);
    color: var(--fg);
    border: 1px solid var(--border-strong);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent-bright);
    background: var(--accent-glow);
}

.btn-ghost {
    background: transparent;
    color: var(--fg-muted);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--fg);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
    border-radius: var(--radius-lg);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

i,
[class^="mdi-"],
[class*=" mdi-"] {
    display: inline-flex;
    align-items: center;
    line-height: 1;
    vertical-align: middle;
}

/* ============================================ */
/* LAYOUT UTILITIES */
/* ============================================ */

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
    box-sizing: border-box;
    min-height: calc(100vh - var(--navbar-height));
    min-height: calc(100dvh - var(--navbar-height));
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.section > .container,
.section > .container-narrow {
    width: 100%;
}

.section-compact {
    padding: var(--spacing-2xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    align-items: center;
}

.section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
}

/* ============================================ */
/* SHARED MARKETING COMPONENTS */
/* ============================================ */

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--accent-glow);
    border: 1px solid rgba(149, 128, 255, 0.3);
    color: var(--accent-bright);
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    width: fit-content;
}

.hero-description {
    font-size: 19px;
    line-height: 1.7;
    color: var(--fg-muted);
}

.hero-platforms {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.platform-chip {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    color: var(--fg-muted);
}

.platform-chip i {
    color: var(--accent);
    font-size: 16px;
}

/* Feature cards (shared by home + download) */
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(149, 128, 255, 0.45);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(149, 128, 255, 0.2), rgba(48, 214, 232, 0.12));
    border: 1px solid rgba(149, 128, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: var(--accent-bright);
    margin-bottom: 18px;
}

.feature-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--fg);
    margin-bottom: 8px;
}

.feature-description {
    font-size: 15px;
    line-height: 1.65;
    color: var(--fg-muted);
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}

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

@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============================================ */
/* NAVBAR */
/* ============================================ */

.site-navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(13, 14, 18, 0.82);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}

.site-navbar-content {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 24px;
    height: 68px;
    display: flex;
    align-items: center;
    gap: 32px;
}

.site-navbar-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 0.5px;
    color: var(--fg);
    text-decoration: none;
}

.site-navbar-logo-icon {
    width: 30px;
    height: 30px;
    display: block;
}

.site-navbar-links {
    display: flex;
    gap: 6px;
    margin-left: 12px;
}

.site-navbar-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--fg-muted);
    text-decoration: none;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: background 0.15s, color 0.15s;
}

.site-navbar-link:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--fg);
}

.site-navbar-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
}

.site-navbar-github {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    color: var(--fg-muted);
    font-size: 22px;
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
}

.site-navbar-github:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--fg);
}

/* Mobile toggle */
.site-navbar-mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    padding: 10px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    margin-left: auto;
}

.site-navbar-mobile-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background: var(--fg-muted);
    border-radius: 2px;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.site-navbar-mobile-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-navbar-mobile-toggle.open span:nth-child(2) { opacity: 0; }
.site-navbar-mobile-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
    .site-navbar-links {
        display: none;
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-raised);
        border-bottom: 1px solid var(--border);
        padding: 12px 24px 18px;
        gap: 4px;
    }

    .site-navbar-links.open { display: flex; }

    .site-navbar-actions .btn-ghost { display: none; }

    .site-navbar-mobile-toggle { display: flex; margin-left: 8px; }

    .site-navbar-actions { margin-left: auto; }
}

@media (max-width: 560px) {
    .site-navbar-actions .btn-primary { padding: 10px 14px; font-size: 14px; }
    .site-navbar-content { gap: 12px; }
}

/* ============================================ */
/* FOOTER */
/* ============================================ */

.site-footer {
    position: relative;
    z-index: 1;
    background: var(--bg-raised);
    border-top: 1px solid var(--border);
    padding: 56px 0 32px;
    margin-top: 0;
}

.site-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 44px;
}

.site-footer-brand {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.site-footer-description {
    font-size: 14px;
    line-height: 1.65;
    color: var(--fg-subtle);
    max-width: 320px;
}

.site-footer-section-title {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--fg-muted);
    margin-bottom: 16px;
}

.site-footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.site-footer-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--fg-subtle);
    text-decoration: none;
    transition: color 0.15s;
    width: fit-content;
}

.site-footer-link:hover { color: var(--accent-bright); }

.site-footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--fg-subtle);
}

.site-footer-platforms {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.site-footer-platforms i {
    font-size: 16px;
    color: var(--accent);
}

@media (max-width: 900px) {
    .site-footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 560px) {
    .site-footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

/* ============================================ */
/* CTA (shared) */
/* ============================================ */

.cta {
    position: relative;
    padding: 88px 0;
    background:
        radial-gradient(ellipse at 50% 120%, rgba(149, 128, 255, 0.12) 0%, transparent 60%),
        var(--bg-raised);
    border-top: 1px solid var(--border);
}

.cta-content {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
    padding: 0 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    align-items: center;
}

.cta-title {
    font-size: 42px;
    font-weight: 800;
    letter-spacing: -0.015em;
    color: var(--fg);
}

.cta-description {
    font-size: 19px;
    line-height: 1.65;
    color: var(--fg-muted);
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 8px;
}

/* ============================================ */
/* RESPONSIVE TYPE */
/* ============================================ */

@media (max-width: 768px) {
    .heading-xl { font-size: 38px; }
    .heading-lg { font-size: 34px; }
    .heading-md { font-size: 28px; }
    .text-lg    { font-size: 17px; }
    .cta-title  { font-size: 30px; }
    .section    { padding: var(--spacing-2xl) 0; }
}