/* ==========================================================================
   HALKA ECOSYSTEM - ULTRA MODERN MIDNIGHT OBSIDIAN & RADIANT GOLD THEME
   Accurately Engineered to Match Halka, gün and Jeo Flutter Codebases
   ========================================================================== */

:root {
    /* Obsidian & Deep Slate Spectrum */
    --bg-base: #05080E;
    --bg-surface: #0A0F1D;
    --bg-card: #0E1526;
    --bg-elevated: #141E34;
    --bg-glass: rgba(14, 21, 38, 0.75);

    /* Radiant Amber Gold Spectrum (Warmth, Community, Sunlight) */
    --gold-primary: #FBBC05;
    --gold-amber: #F59E0B;
    --gold-light: #FDE68A;
    --gold-glow: rgba(251, 188, 5, 0.25);
    --gold-border: rgba(251, 188, 5, 0.35);

    /* Supporting Semantic Hues */
    --emerald-light: #34D399;
    --emerald-glow: rgba(52, 211, 153, 0.2);
    --ruby-light: #F87171;
    --cyan-light: #38BDF8;

    /* Typography Hues */
    --text-pure: #FFFFFF;
    --text-primary: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --text-gold: #FCD34D;

    /* Borders & Outlines */
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(251, 188, 5, 0.45);

    /* Gradients */
    --gradient-gold: linear-gradient(135deg, #FFFBEB 0%, #FBBC05 50%, #D97706 100%);
    --gradient-card: linear-gradient(180deg, rgba(20, 30, 52, 0.6) 0%, rgba(10, 15, 29, 0.85) 100%);
    --gradient-surface: linear-gradient(145deg, #0E1626, #070B14);

    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Outfit', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-base);
    color: var(--text-primary);
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-base);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* Background Ambient Glow Orbs */
.bg-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(140px);
    pointer-events: none;
    z-index: 0;
}
.bg-glow-1 {
    top: -10%;
    left: 20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(251, 188, 5, 0.12) 0%, transparent 70%);
}
.bg-glow-2 {
    top: 45%;
    right: -10%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 1;
}

/* ========================================
   Top Navigation Bar
   ======================================== */
.top-navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 0;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
    gap: 1rem;
    flex-wrap: wrap;
}

.brand-wrapper {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
}

.brand-logo-frame {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--gold-border);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(251, 188, 5, 0.2);
    overflow: hidden;
}

.brand-logo-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.brand-name {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-tag {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(251, 188, 5, 0.15);
    color: var(--gold-light);
    padding: 0.2rem 0.55rem;
    border-radius: 6px;
    border: 1px solid var(--gold-border);
}

.nav-links-center {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.nav-link-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-decoration: none;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Individual App Brand Colors for Top Nav */
#nav-pill-halka i {
    color: #F59E0B;
}
#nav-pill-halka:hover, #nav-pill-halka.active {
    color: #FBBF24;
    background: rgba(245, 158, 11, 0.12);
    border-color: rgba(245, 158, 11, 0.45);
    transform: translateY(-2px);
    box-shadow: 0 4px 18px rgba(245, 158, 11, 0.25);
}

#nav-pill-gun i {
    color: #FFFFFF;
}
#nav-pill-gun:hover, #nav-pill-gun.active {
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 4px 18px rgba(255, 255, 255, 0.2);
}

#nav-pill-jeo i {
    color: #10B981;
}
#nav-pill-jeo:hover, #nav-pill-jeo.active {
    color: #34D399;
    background: rgba(16, 185, 129, 0.12);
    border-color: rgba(16, 185, 129, 0.45);
    transform: translateY(-2px);
    box-shadow: 0 4px 18px rgba(16, 185, 129, 0.25);
}

#nav-pill-manifesto i {
    color: var(--gold-light);
}
#nav-pill-manifesto:hover, #nav-pill-manifesto.active {
    color: var(--gold-light);
    background: rgba(251, 188, 5, 0.1);
    border-color: var(--gold-border);
    transform: translateY(-2px);
    box-shadow: 0 4px 18px rgba(251, 188, 5, 0.2);
}

/* Bilingual Language Toggle (TR | EN) */
.site-lang-switch {
    display: inline-flex;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 100px;
    padding: 0.25rem;
}

.site-lang-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.35rem 0.75rem;
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.site-lang-btn.active {
    background: var(--gold-amber);
    color: #05080E;
    box-shadow: 0 2px 10px rgba(245, 158, 11, 0.4);
}

/* ========================================
   Support Banner (Minimalist Heart Box)
   ======================================== */
.support-banner-gold {
    background: linear-gradient(135deg, rgba(251, 188, 5, 0.08) 0%, rgba(20, 30, 52, 0.5) 100%);
    border: 1px solid var(--gold-border);
    border-radius: 20px;
    padding: 1.15rem 1.6rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 2.5rem;
    backdrop-filter: blur(12px);
}

.support-banner-gold .heart-icon {
    font-size: 1.9rem;
    color: var(--gold-primary);
    filter: drop-shadow(0 0 10px rgba(251, 188, 5, 0.5));
    flex-shrink: 0;
}

.support-banner-gold .desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

.support-banner-gold .desc strong {
    color: var(--gold-light);
    display: block;
    margin-bottom: 0.15rem;
    font-weight: 700;
}

.support-banner-gold .desc a {
    color: var(--gold-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    font-weight: 600;
}

/* ========================================
   Hero Section (Centered & Clean)
   ======================================== */
.hero-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 2rem 0 4.5rem;
    max-width: 860px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.035em;
    color: var(--text-pure);
    margin-bottom: 1.35rem;
}
.hero-content h1 .highlight-gold {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.hero-content p.lead {
    font-size: 1.18rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin: 0 auto 2.2rem;
    max-width: 720px;
}

/* Value Specs Pills */
.specs-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.65rem;
    margin-bottom: 2.5rem;
}
.spec-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    padding: 0.45rem 0.95rem;
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-pure);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
.spec-pill i {
    color: var(--gold-amber);
    font-size: 1rem;
}

/* Download CTA Buttons */
.cta-group {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.15rem;
    flex-wrap: wrap;
}
.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.9rem;
    padding: 0.85rem 1.4rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    color: var(--text-pure);
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}
.cta-btn:hover {
    transform: translateY(-3px);
    border-color: var(--gold-border);
    background: var(--bg-elevated);
    box-shadow: 0 15px 35px rgba(251, 188, 5, 0.2);
}
.cta-btn i {
    font-size: 1.8rem;
    color: var(--gold-primary);
}
.cta-btn-text {
    display: flex;
    flex-direction: column;
}
.cta-btn-text .tag {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
}
.cta-btn-text .name {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

/* ========================================
   Hero Right: Realistic Curved Smartphone Radar Mockup
   ======================================== */
.radar-cluster {
    position: relative;
    display: flex;
    justify-content: center;
}

.radar-device {
    width: 100%;
    max-width: 420px;
    background: #000000;
    border-radius: 46px;
    padding: 0.95rem 0.75rem;
    border: 3px solid #1E293B;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.8), 0 0 50px rgba(251, 188, 5, 0.15);
    position: relative;
    z-index: 2;
}

.device-notch {
    width: 110px;
    height: 18px;
    background: #000000;
    border-radius: 0 0 14px 14px;
    margin: -0.95rem auto 0.65rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    z-index: 10;
}
.notch-cam {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #111827;
}
.notch-speaker {
    width: 35px;
    height: 3px;
    border-radius: 2px;
    background: #1E293B;
}

.device-screen {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 36px;
    padding: 1.15rem 1.05rem;
    position: relative;
    overflow: hidden;
}

.screen-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}
.radar-live-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    background: rgba(251, 188, 5, 0.12);
    border: 1px solid var(--gold-border);
    padding: 0.25rem 0.65rem;
    border-radius: 100px;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--gold-light);
    text-transform: uppercase;
}
.pulse-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--gold-amber);
    box-shadow: 0 0 10px var(--gold-primary);
    animation: pulseDot 2s infinite;
}

/* Radius Selector Tabs */
.radius-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0.35rem;
    background: var(--bg-elevated);
    padding: 0.25rem;
    border-radius: 12px;
    margin-bottom: 0.85rem;
}
.radius-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.74rem;
    font-weight: 700;
    padding: 0.35rem 0.2rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}
.radius-btn.active {
    background: var(--gold-amber);
    color: #05080E;
    box-shadow: 0 2px 10px rgba(245, 158, 11, 0.35);
}

/* Interactive Simulated Neighborhood Feed inside Device */
.radar-posts-feed {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    margin-bottom: 0.5rem;
}
.radar-post-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    padding: 0.7rem 0.8rem;
    transition: all 0.25s ease;
}
.radar-post-card:hover {
    border-color: var(--gold-border);
    transform: translateY(-2px);
}
.post-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-bottom: 0.3rem;
}
.post-author {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-weight: 700;
    color: var(--gold-light);
}
.post-tag-badge {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.15rem 0.45rem;
    border-radius: 6px;
    font-size: 0.65rem;
    color: var(--text-secondary);
}
.post-text {
    font-size: 0.82rem;
    color: var(--text-pure);
    line-height: 1.38;
    font-weight: 500;
}

/* Sentiment Bar (Destekle / Karşı Çık Oranı) */
.post-sentiment-wrap {
    margin: 0.45rem 0 0.2rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 6px;
    padding: 0.3rem 0.45rem;
}
.sentiment-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.66rem;
    font-weight: 700;
}
.label-support { color: var(--emerald-light); }
.label-oppose { color: var(--ruby-light); }
.sentiment-bar-track {
    height: 4px;
    background: rgba(248, 113, 113, 0.35);
    border-radius: 10px;
    overflow: hidden;
    margin-top: 0.2rem;
}
.sentiment-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #10B981, #34D399);
    border-radius: 10px;
}

/* Audio Recording Preview Box */
.post-audio-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(251, 188, 5, 0.08);
    border: 1px solid rgba(251, 188, 5, 0.2);
    padding: 0.3rem 0.55rem;
    border-radius: 8px;
    margin-top: 0.4rem;
}
.audio-play-btn {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--gold-amber);
    color: #05080E;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
}
.audio-waves {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
    height: 14px;
}
.wave-bar {
    width: 3px;
    background: var(--gold-light);
    border-radius: 2px;
    animation: waveMotion 1.2s infinite ease-in-out;
}
.wave-bar:nth-child(1) { height: 6px; animation-delay: 0.1s; }
.wave-bar:nth-child(2) { height: 12px; animation-delay: 0.3s; }
.wave-bar:nth-child(3) { height: 8px; animation-delay: 0.2s; }
.wave-bar:nth-child(4) { height: 14px; animation-delay: 0.4s; }
.wave-bar:nth-child(5) { height: 5px; animation-delay: 0.1s; }
.wave-bar:nth-child(6) { height: 10px; animation-delay: 0.35s; }
.audio-duration {
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--gold-light);
}

.post-footer-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.4rem;
    padding-top: 0.35rem;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    font-size: 0.68rem;
    color: var(--text-muted);
}
.post-countdown {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    color: var(--ruby-light);
    font-weight: 600;
}

/* Floating Device Chips */
.float-chip {
    position: absolute;
    background: rgba(14, 21, 34, 0.85);
    border: 1px solid var(--border-hover);
    backdrop-filter: blur(16px);
    padding: 0.55rem 1rem;
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-pure);
    display: flex;
    align-items: center;
    gap: 0.45rem;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
    z-index: 3;
    pointer-events: none;
}
.chip-top-right {
    top: 25px;
    right: -25px;
    animation: floatChip 4s infinite alternate ease-in-out;
}
.chip-bottom-left {
    bottom: 40px;
    left: -25px;
    animation: floatChip 4s infinite alternate-reverse ease-in-out;
}

/* ========================================
   Section Headers (Shared Standard)
   ======================================== */
.section-header {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 3.5rem;
}
.section-header .tag {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gold-light);
    background: rgba(251, 188, 5, 0.12);
    border: 1px solid var(--gold-border);
    padding: 0.35rem 0.95rem;
    border-radius: 100px;
    margin-bottom: 1rem;
}
.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-pure);
    margin-bottom: 0.9rem;
    line-height: 1.2;
}
.section-header p {
    font-size: 1.08rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* ========================================
   4 MULTI-TIER COMMUNICATION CHANNELS SHOWCASE
   ======================================== */
.channels-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-bottom: 4.5rem;
}
.channel-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: 1.5rem 1.25rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}
.channel-card:hover {
    border-color: var(--gold-border);
    transform: translateY(-4px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}
.channel-icon-wrap {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: rgba(251, 188, 5, 0.1);
    border: 1px solid var(--gold-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--gold-primary);
    margin-bottom: 1.15rem;
}
.channel-card h3 {
    font-size: 1.12rem;
    font-weight: 700;
    color: var(--text-pure);
    margin-bottom: 0.5rem;
}
.channel-card p {
    font-size: 0.86rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

/* ========================================
   3 ECOSYSTEM PRODUCTS SHOWCASE (HALKA AİLESİ)
   ======================================== */
.ecosystem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
    margin-bottom: 5rem;
}

.eco-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-subtle);
    border-radius: 24px;
    padding: 2.2rem 1.8rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}
.eco-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: transparent;
    transition: background 0.3s ease;
}
.eco-card:hover {
    transform: translateY(-6px);
    border-color: var(--gold-border);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.6), 0 0 30px rgba(251, 188, 5, 0.1);
}
.eco-card:hover::before {
    background: var(--gradient-gold);
}

.eco-badge-main {
    display: inline-block;
    background: rgba(251, 188, 5, 0.15);
    border: 1px solid var(--gold-border);
    color: var(--gold-light);
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.25rem 0.65rem;
    border-radius: 8px;
    margin-bottom: 1.25rem;
}

.eco-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 1.4rem;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.eco-card h3 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-pure);
    margin-bottom: 0.35rem;
}
.eco-card p.eco-desc {
    font-size: 0.94rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.eco-features-list {
    list-style: none;
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}
.eco-features-list li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.86rem;
    color: var(--text-primary);
}
.eco-features-list li i {
    font-size: 1.05rem;
    flex-shrink: 0;
}

.eco-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.85rem 1.4rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.25s ease;
}

/* ----------------------------------------
   App 1: HALKA (Amber Gold Theme)
   ---------------------------------------- */
.eco-card-halka {
    border-color: rgba(245, 158, 11, 0.2);
}
.eco-card-halka .eco-badge-main {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.4);
    color: #FBBF24;
}
.eco-card-halka .eco-subtitle {
    color: #F59E0B;
    font-size: 0.88rem;
    font-weight: 700;
    margin-bottom: 1rem;
}
.eco-card-halka .eco-features-list li i {
    color: #F59E0B;
}
.eco-card-halka .eco-action-btn {
    color: #FBBF24;
    border-color: rgba(245, 158, 11, 0.3);
    background: rgba(245, 158, 11, 0.08);
}
.eco-card-halka .eco-action-btn:hover {
    background: #F59E0B;
    color: #05080E;
    border-color: #F59E0B;
    box-shadow: 0 6px 22px rgba(245, 158, 11, 0.45);
}
.eco-card-halka:hover {
    border-color: rgba(245, 158, 11, 0.5);
    box-shadow: 0 16px 40px rgba(245, 158, 11, 0.15);
}

/* ----------------------------------------
   App 2: GÜN (Obsidian & Pure Ivory White Theme)
   ---------------------------------------- */
.eco-card-gun {
    border-color: rgba(255, 255, 255, 0.18);
}
.eco-card-gun .eco-badge-main {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.35);
    color: #FFFFFF;
}
.eco-card-gun .eco-subtitle {
    color: #F3F4F6;
    font-size: 0.88rem;
    font-weight: 700;
    margin-bottom: 1rem;
}
.eco-card-gun .eco-features-list li i {
    color: #FFFFFF;
}
.eco-card-gun .eco-action-btn {
    color: #FFFFFF;
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.08);
}
.eco-card-gun .eco-action-btn:hover {
    background: #FFFFFF;
    color: #05080E;
    border-color: #FFFFFF;
    box-shadow: 0 6px 22px rgba(255, 255, 255, 0.4);
}
.eco-card-gun:hover {
    border-color: rgba(255, 255, 255, 0.45);
    box-shadow: 0 16px 40px rgba(255, 255, 255, 0.12);
}

/* ----------------------------------------
   App 3: JEO (Geodetic Emerald Green Theme)
   ---------------------------------------- */
.eco-card-jeo {
    border-color: rgba(16, 185, 129, 0.22);
}
.eco-card-jeo .eco-badge-main {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.4);
    color: #34D399;
}
.eco-card-jeo .eco-subtitle {
    color: #10B981;
    font-size: 0.88rem;
    font-weight: 700;
    margin-bottom: 1rem;
}
.eco-card-jeo .eco-features-list li i {
    color: #10B981;
}
.eco-card-jeo .eco-action-btn {
    color: #34D399;
    border-color: rgba(16, 185, 129, 0.3);
    background: rgba(16, 185, 129, 0.08);
}
.eco-card-jeo .eco-action-btn:hover {
    background: #10B981;
    color: #05080E;
    border-color: #10B981;
    box-shadow: 0 6px 22px rgba(16, 185, 129, 0.45);
}
.eco-card-jeo:hover {
    border-color: rgba(16, 185, 129, 0.5);
    box-shadow: 0 16px 40px rgba(16, 185, 129, 0.18);
}

/* ========================================
   4 CORE COMMUNICATION PILLARS (HALKA FARKI)
   ======================================== */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-bottom: 5rem;
}
.pillar-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: 1.8rem 1.5rem;
    transition: all 0.25s ease;
}
.pillar-card:hover {
    border-color: var(--gold-border);
    transform: translateY(-3px);
}
.pillar-icon {
    font-size: 2rem;
    color: var(--gold-primary);
    margin-bottom: 1rem;
}
.pillar-card h3 {
    font-size: 1.22rem;
    font-weight: 700;
    color: var(--text-pure);
    margin-bottom: 0.55rem;
}
.pillar-card p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================================
   13 TOPICS & CATEGORIES INTERACTIVE MATRIX
   ======================================== */
.topics-showcase-box {
    background: var(--gradient-card);
    border: 1px solid var(--border-subtle);
    border-radius: 28px;
    padding: 3rem 2.5rem;
    margin-bottom: 5rem;
}

.topics-filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 2.2rem;
    justify-content: center;
}
.filter-chip {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 0.45rem 0.9rem;
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}
.filter-chip:hover, .filter-chip.active {
    background: var(--bg-elevated);
    border-color: var(--gold-border);
    color: var(--text-pure);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.35rem;
}
.topic-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 18px;
    padding: 1.4rem 1.25rem;
    transition: all 0.25s ease;
}
.topic-item:hover {
    border-color: var(--gold-border);
    transform: translateY(-2px);
}
.topic-item-header {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin-bottom: 0.6rem;
}
.topic-item-header i {
    font-size: 1.4rem;
    color: var(--gold-primary);
}
.topic-item-header h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-pure);
}
.topic-item p {
    font-size: 0.86rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

/* ========================================
   4-TIER EPHEMERAL DURATION SELECTOR SHOWCASE
   ======================================== */
.durations-showcase-box {
    background: linear-gradient(145deg, rgba(20, 30, 52, 0.4), rgba(10, 15, 29, 0.7));
    border: 1px solid var(--border-subtle);
    border-radius: 24px;
    padding: 2.2rem 2rem;
    margin-bottom: 5rem;
    text-align: center;
}
.durations-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}
.duration-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 1.2rem 1rem;
    transition: all 0.25s ease;
}
.duration-card:hover {
    border-color: var(--gold-border);
    transform: translateY(-3px);
}
.duration-card i {
    font-size: 1.8rem;
    color: var(--gold-amber);
    margin-bottom: 0.6rem;
}
.duration-card h4 {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-pure);
    margin-bottom: 0.25rem;
}
.duration-card p {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ========================================
   HALKA ECOSYSTEM MANIFESTO
   ======================================== */
.manifesto-box {
    background: linear-gradient(135deg, rgba(251, 188, 5, 0.07) 0%, rgba(20, 30, 52, 0.8) 100%);
    border: 1px solid var(--gold-border);
    border-radius: 32px;
    padding: 3.5rem 3rem;
    max-width: 1040px;
    margin: 0 auto 5rem;
    position: relative;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(251, 188, 5, 0.1);
}

.manifesto-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 2.8rem;
}
.manifesto-header .tag {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gold-light);
    background: rgba(251, 188, 5, 0.12);
    border: 1px solid var(--gold-border);
    padding: 0.35rem 0.95rem;
    border-radius: 100px;
    margin-bottom: 1rem;
}
.manifesto-header h3 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-pure);
    margin-bottom: 1rem;
}
.manifesto-lead {
    font-size: 1.15rem;
    color: var(--gold-light);
    line-height: 1.7;
    font-style: italic;
}

/* 4 Core Ecosystem Principles Grid */
.manifesto-principles-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.4rem;
    margin-bottom: 2.8rem;
}
.manifesto-principle-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: 1.6rem 1.4rem;
    display: flex;
    gap: 1.15rem;
    align-items: flex-start;
    transition: all 0.25s ease;
}
.manifesto-principle-card:hover {
    border-color: var(--gold-border);
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}
.principle-number {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--gold-primary);
    background: rgba(251, 188, 5, 0.12);
    border: 1px solid var(--gold-border);
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.principle-content h4 {
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--text-pure);
    margin-bottom: 0.45rem;
}
.principle-content p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Concluding Footer Quote */
.manifesto-footer-quote {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-subtle);
    max-width: 760px;
    margin: 0 auto;
}
.manifesto-footer-quote .quote-icon {
    font-size: 2.2rem;
    color: var(--gold-primary);
    margin-bottom: 0.6rem;
    opacity: 0.85;
}
.manifesto-footer-quote p {
    font-size: 1.12rem;
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.7;
}

/* ========================================
   Footer & Legal Navigation
   ======================================== */
.site-footer {
    border-top: 1px solid var(--border-subtle);
    padding: 3.5rem 0 2.5rem;
    margin-top: 3rem;
}

.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-legal-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}
.footer-legal-links a {
    font-size: 0.86rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}
.footer-legal-links a:hover {
    color: var(--gold-primary);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* ========================================
   Legal Hub & Document View Layout
   ======================================== */
.view-section {
    display: none;
}
.view-section.active {
    display: block;
    animation: fadeIn 0.35s ease;
}

.legal-header-area {
    margin-bottom: 2rem;
}

.back-btn-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.15rem;
    border-radius: 100px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    font-size: 0.86rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}
.back-btn-pill:hover {
    border-color: var(--gold-border);
    transform: translateX(-3px);
}

.legal-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2.5rem;
    margin-bottom: 4rem;
}

.legal-sidebar {
    position: sticky;
    top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.15rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s ease;
}
.tab-btn:hover, .tab-btn.active {
    background: var(--bg-elevated);
    border-color: var(--gold-border);
    color: var(--text-pure);
}
.tab-btn.active i {
    color: var(--gold-primary);
}

.legal-content-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 24px;
    padding: 2.5rem;
}

.document-pane {
    display: none;
}
.document-pane.active {
    display: block;
}

.document-pane h2 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-pure);
    margin-bottom: 0.5rem;
}
.document-pane .effective-date {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 1.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-subtle);
}
.document-pane h3 {
    font-size: 1.18rem;
    font-weight: 700;
    color: var(--gold-light);
    margin: 1.75rem 0 0.65rem;
}
.document-pane p, .document-pane li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0.85rem;
}
.document-pane ul, .document-pane ol {
    padding-left: 1.4rem;
    margin-bottom: 1.25rem;
}

/* ========================================
   Keyframes & Animations
   ======================================== */
@keyframes pulseDot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.85); }
}
@keyframes floatChip {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-10px); }
}
@keyframes fadeIn {
    0% { opacity: 0; transform: translateY(10px); }
    100% { opacity: 1; transform: translateY(0); }
}
@keyframes waveMotion {
    0%, 100% { transform: scaleY(0.4); }
    50% { transform: scaleY(1); }
}

/* ========================================
   Mobile Responsiveness (320px to 960px)
   ======================================== */
@media (max-width: 960px) {
    .hero-section {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    .hero-left h1 { font-size: 2.6rem; }
    .hero-left p.lead { margin: 0 auto 2rem; }
    .specs-row, .cta-group { justify-content: center; }
    .channels-grid, .durations-row { grid-template-columns: 1fr 1fr; }
    .ecosystem-grid, .pillars-grid, .topics-grid, .manifesto-principles-grid { grid-template-columns: 1fr; }
    .float-chip { display: none; }
    .legal-layout { grid-template-columns: 1fr; }
    .legal-sidebar { position: static; }
}

@media (max-width: 600px) {
    .container { padding: 0 1rem; }
    .hero-left h1 { font-size: 2.1rem; }
    .cta-btn { width: 100%; justify-content: center; }
    .radar-device { border-radius: 36px; padding: 0.85rem 0.65rem; }
    .channels-grid, .durations-row { grid-template-columns: 1fr; }
    .topics-showcase-box, .manifesto-box { padding: 1.75rem 1.2rem; }
    .support-banner-gold { flex-direction: column; text-align: center; align-items: center; }
    .top-navbar { justify-content: center; text-align: center; }
    .nav-links-center { justify-content: center; }
}

@media (max-width: 420px) {
    .hero-left h1 { font-size: 1.85rem; }
}