/* Refleks landing — Sahanın refleksi */

:root {
    --bg: #0a0a0c;
    --bg-elev: #111114;
    --bg-card: #131318;
    --fg: #e8eaf0;
    --fg-soft: #b4b7c2;
    --fg-muted: #7a7e8c;
    --line: #1f2026;
    --line-strong: #2a2c34;
    --brand: #3b82f6;
    --brand-soft: #60a5fa;
    --brand-deep: #1d4ed8;
    --warn: #fbbf24;
    --good: #34d399;
    --crit: #f87171;
    --radius: 14px;
    --radius-sm: 8px;
    --max: 1180px;
    --font: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
body {
    background: var(--bg);
    color: var(--fg);
    font-family: var(--font);
    font-feature-settings: 'cv11', 'ss01', 'ss03';
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.55;
    overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

::selection { background: var(--brand); color: #fff; }

/* ---------- subtle background grid ---------- */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        radial-gradient(circle at 20% -10%, rgba(59,130,246,0.18), transparent 55%),
        radial-gradient(circle at 100% 10%, rgba(96,165,250,0.08), transparent 60%);
    pointer-events: none;
    z-index: 0;
}
main, nav, footer { position: relative; z-index: 1; }

/* ---------- nav ---------- */
.nav {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    gap: 28px;
    padding: 14px 28px;
    background: color-mix(in srgb, var(--bg) 82%, transparent);
    backdrop-filter: saturate(140%) blur(10px);
    -webkit-backdrop-filter: saturate(140%) blur(10px);
    border-bottom: 1px solid var(--line);
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--fg);
}
.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 9px;
    background: linear-gradient(160deg, var(--brand) 0%, var(--brand-deep) 100%);
    color: #fff;
    font-weight: 700;
    font-size: 16px;
    letter-spacing: -0.02em;
    box-shadow: 0 4px 16px -4px rgba(59,130,246,0.55), inset 0 1px 0 rgba(255,255,255,0.18);
}
.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.05;
}
.brand-name {
    font-weight: 600;
    font-size: 16px;
    letter-spacing: -0.01em;
}
.brand-tag {
    font-size: 11px;
    color: var(--fg-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 2px;
}
.nav-links {
    display: flex;
    gap: 22px;
    list-style: none;
    padding: 0;
    margin: 0 0 0 auto;
}

/* theme toggle */
.theme-toggle {
    display: inline-grid;
    place-items: center;
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: 50%;
    border: 1px solid var(--line-strong);
    background: var(--bg-card);
    color: var(--fg-soft);
    cursor: pointer;
    transition: color .15s ease, border-color .15s ease, background .15s ease, transform .15s ease;
}
.theme-toggle:hover {
    color: var(--fg);
    border-color: var(--fg-muted);
    transform: translateY(-1px);
}
.theme-toggle:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 2px;
}
.theme-icon { width: 18px; height: 18px; grid-area: 1 / 1; transition: opacity .2s ease, transform .3s ease; }
/* default (dark) → güneş görünür (light'a geç göstergesi) */
.theme-icon-sun  { opacity: 1; transform: rotate(0deg); }
.theme-icon-moon { opacity: 0; transform: rotate(-90deg); }
/* light modda → ay görünür (dark'a geç göstergesi) */
:root[data-theme="light"] .theme-icon-sun  { opacity: 0; transform: rotate(90deg); }
:root[data-theme="light"] .theme-icon-moon { opacity: 1; transform: rotate(0deg); }
@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) .theme-icon-sun  { opacity: 0; transform: rotate(90deg); }
    :root:not([data-theme="dark"]) .theme-icon-moon { opacity: 1; transform: rotate(0deg); }
}
.nav-links a {
    color: var(--fg-soft);
    font-size: 14px;
    transition: color .15s ease;
}
.nav-links a:hover { color: var(--fg); }
.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    background: var(--fg);
    color: #0a0a0c;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: -0.01em;
    transition: transform .15s ease, background .15s ease;
}
.nav-cta:hover { transform: translateY(-1px); background: #fff; }

@media (max-width: 880px) {
    .nav-links { display: none; }
    .nav { gap: 12px; padding: 12px 18px; }
    .brand-tag { display: none; }
}

/* ---------- shared section heading ---------- */
.section-head {
    max-width: 720px;
    margin: 0 auto 56px;
    text-align: center;
}
.section-tag {
    display: inline-block;
    padding: 5px 12px;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--brand-soft);
    margin-bottom: 16px;
}
.section-head h2 {
    margin: 0 0 14px;
    font-size: clamp(28px, 4vw, 42px);
    line-height: 1.1;
    letter-spacing: -0.02em;
    font-weight: 600;
}
.section-head p {
    margin: 0;
    color: var(--fg-soft);
    font-size: 16px;
}

/* ---------- hero ---------- */
.hero {
    max-width: var(--max);
    margin: 0 auto;
    padding: 80px 28px 60px;
}
.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center;
}
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(59,130,246,0.10);
    border: 1px solid rgba(59,130,246,0.28);
    color: var(--brand-soft);
    border-radius: 999px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
}
.eyebrow::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--brand);
    box-shadow: 0 0 0 4px rgba(59,130,246,0.25);
}
.eyebrow-light {
    color: rgba(255,255,255,0.95);
    background: rgba(255,255,255,0.10);
    border-color: rgba(255,255,255,0.22);
}
.eyebrow-light::before { background: #fff; box-shadow: 0 0 0 4px rgba(255,255,255,0.18); }

.hero h1 {
    margin: 22px 0 18px;
    font-size: clamp(48px, 7vw, 92px);
    line-height: 0.98;
    letter-spacing: -0.035em;
    font-weight: 600;
}
.hero-accent {
    background: linear-gradient(96deg, var(--brand) 0%, var(--brand-soft) 60%, #a5b4fc 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-style: italic;
    font-weight: 500;
}
.hero-lead {
    margin: 0 0 28px;
    max-width: 540px;
    color: var(--fg-soft);
    font-size: 18px;
    line-height: 1.55;
}
.hero-lead em {
    color: var(--fg);
    font-style: normal;
    font-weight: 500;
}
.hero-cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 13px 22px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.01em;
    transition: transform .15s ease, background .15s ease, border-color .15s ease, box-shadow .2s ease;
    border: 1px solid transparent;
    cursor: pointer;
}
.btn-primary {
    background: linear-gradient(160deg, var(--brand) 0%, var(--brand-deep) 100%);
    color: #fff;
    box-shadow: 0 8px 28px -8px rgba(59,130,246,0.6), inset 0 1px 0 rgba(255,255,255,0.18);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 12px 32px -8px rgba(59,130,246,0.7), inset 0 1px 0 rgba(255,255,255,0.22); }
.btn-ghost {
    background: transparent;
    color: var(--fg);
    border-color: var(--line-strong);
}
.btn-ghost:hover { border-color: var(--fg-muted); background: rgba(255,255,255,0.03); }
.btn-lg { padding: 16px 28px; font-size: 16px; }

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    margin: 0;
    padding-top: 28px;
    border-top: 1px solid var(--line);
}
.hero-stats div { display: flex; flex-direction: column; gap: 4px; }
.hero-stats dt {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--fg-muted);
}
.hero-stats dd { margin: 0; font-size: 14px; color: var(--fg); }

/* ---------- hero visual: the loop ---------- */
.hero-visual {
    display: grid;
    place-items: center;
}
.loop {
    position: relative;
    width: min(420px, 100%);
    aspect-ratio: 1;
    color: var(--brand);
}
.loop-arcs { position: absolute; inset: 0; width: 100%; height: 100%; color: var(--brand-soft); }
.loop-core {
    position: absolute;
    inset: 0;
    margin: auto;
    width: 96px;
    height: 96px;
    border-radius: 24px;
    background: linear-gradient(160deg, var(--brand) 0%, var(--brand-deep) 100%);
    display: grid;
    place-items: center;
    box-shadow: 0 18px 48px -12px rgba(59,130,246,0.6), inset 0 1px 0 rgba(255,255,255,0.18);
}
.loop-r {
    color: #fff;
    font-size: 46px;
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1;
}
.loop-pulse {
    position: absolute;
    inset: -8px;
    border-radius: 28px;
    border: 1.5px solid var(--brand);
    opacity: 0;
    animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
    0%   { opacity: 0.55; transform: scale(0.92); }
    70%  { opacity: 0; transform: scale(1.55); }
    100% { opacity: 0; transform: scale(1.55); }
}

.loop-step {
    position: absolute;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px 10px 12px;
    background: var(--bg-card);
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    font-size: 13px;
    color: var(--fg);
    box-shadow: 0 8px 24px -10px rgba(0,0,0,0.5);
    white-space: nowrap;
    animation: step-glow 6s ease-in-out infinite;
}
.loop-step .loop-num {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(59,130,246,0.15);
    color: var(--brand-soft);
    font-size: 11px;
    font-weight: 700;
    display: grid;
    place-items: center;
    font-feature-settings: 'tnum';
}
.loop-step-1 { top: 0; left: 50%; transform: translate(-50%, 0); animation-delay: 0s; }
.loop-step-2 { top: 50%; right: 0; transform: translate(0, -50%); animation-delay: 1.5s; }
.loop-step-3 { bottom: 0; left: 50%; transform: translate(-50%, 0); animation-delay: 3s; }
.loop-step-4 { top: 50%; left: 0; transform: translate(0, -50%); animation-delay: 4.5s; }

@keyframes step-glow {
    0%, 100% { border-color: var(--line-strong); box-shadow: 0 8px 24px -10px rgba(0,0,0,0.5); }
    10%, 25% { border-color: var(--brand); box-shadow: 0 8px 28px -6px rgba(59,130,246,0.55); }
}

@media (max-width: 920px) {
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual .loop { width: min(360px, 100%); }
    .hero-stats { grid-template-columns: 1fr 1fr; }
}

/* ---------- ribbon ---------- */
.ribbon {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 28px;
}
.ribbon p {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 14px;
    padding: 24px 28px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-elev) 100%);
    font-size: 15px;
    color: var(--fg);
    text-align: center;
}
.ribbon span:not(.ribbon-arrow):not(.ribbon-dot):not(.ribbon-tail) {
    font-weight: 600;
}
.ribbon-arrow { color: var(--brand); font-weight: 700; }
.ribbon-dot { color: var(--fg-muted); margin: 0 4px; }
.ribbon-tail { color: var(--fg-muted); font-weight: 400; font-style: italic; }

/* ---------- cycle ---------- */
.cycle {
    max-width: var(--max);
    margin: 100px auto 0;
    padding: 0 28px;
}
.cycle-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}
.cycle-list li {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 26px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: border-color .2s ease, transform .2s ease;
}
.cycle-list li:hover {
    border-color: var(--brand);
    transform: translateY(-3px);
}
.cycle-num {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(59,130,246,0.12);
    color: var(--brand-soft);
    font-weight: 700;
    font-size: 13px;
    display: grid;
    place-items: center;
    font-feature-settings: 'tnum';
}
.cycle-list h3 {
    margin: 0 0 8px;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.01em;
}
.cycle-list p { margin: 0; color: var(--fg-soft); font-size: 14px; line-height: 1.55; }
.cycle-list em { color: var(--fg); font-style: normal; }

@media (max-width: 960px) {
    .cycle-list { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
    .cycle-list { grid-template-columns: 1fr; }
}

/* ---------- features ---------- */
.features {
    max-width: var(--max);
    margin: 120px auto 0;
    padding: 0 28px;
}
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
.feature {
    position: relative;
    padding: 26px;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color .2s ease, transform .2s ease;
}
.feature::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--radius);
    padding: 1px;
    background: linear-gradient(140deg, transparent 30%, rgba(59,130,246,0.5) 50%, transparent 70%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    opacity: 0;
    transition: opacity .25s ease;
    pointer-events: none;
}
.feature:hover { transform: translateY(-3px); }
.feature:hover::before { opacity: 1; }
.feature-num {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--brand-soft);
    background: rgba(59,130,246,0.1);
    padding: 3px 9px;
    border-radius: 6px;
    margin-bottom: 14px;
    font-feature-settings: 'tnum';
}
.feature h3 {
    margin: 0 0 10px;
    font-size: 19px;
    font-weight: 600;
    letter-spacing: -0.01em;
}
.feature p {
    margin: 0 0 16px;
    color: var(--fg-soft);
    font-size: 14px;
    line-height: 1.6;
}
.feature-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    list-style: none;
    padding: 0;
    margin: 0;
}
.feature-meta li {
    font-size: 11px;
    padding: 3px 9px;
    border-radius: 999px;
    background: var(--bg-elev);
    border: 1px solid var(--line-strong);
    color: var(--fg-muted);
    font-family: var(--mono);
    letter-spacing: -0.01em;
}
.feature-wide { grid-column: span 2; }
.feature-wide h3 { font-size: 22px; }

@media (max-width: 980px) {
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .feature-wide { grid-column: span 2; }
}
@media (max-width: 600px) {
    .feature-grid { grid-template-columns: 1fr; }
    .feature-wide { grid-column: span 1; }
}

/* ---------- audiences ---------- */
.audiences {
    max-width: var(--max);
    margin: 120px auto 0;
    padding: 0 28px;
}
.audience-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-bottom: 48px;
}
.audience-grid article {
    padding: 26px;
    border-radius: var(--radius);
    background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-elev) 100%);
    border: 1px solid var(--line);
}
.audience-grid h3 {
    margin: 0 0 10px;
    font-size: 17px;
    font-weight: 600;
}
.audience-grid p { margin: 0; font-size: 14px; color: var(--fg-soft); line-height: 1.55; }

.sector-cloud {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    padding: 22px 26px;
    border: 1px dashed var(--line-strong);
    border-radius: var(--radius);
    background: rgba(59,130,246,0.04);
}
.sector-label {
    color: var(--fg-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 600;
}
.sector-cloud ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.sector-cloud li {
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid var(--line-strong);
    background: var(--bg-card);
    font-size: 13px;
    color: var(--fg);
}

@media (max-width: 980px) { .audience-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .audience-grid { grid-template-columns: 1fr; } }

/* ---------- compare ---------- */
.compare {
    max-width: var(--max);
    margin: 120px auto 0;
    padding: 0 28px;
}
.compare-table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--line);
    background: var(--bg-card);
    font-size: 14px;
}
.compare-table thead th {
    text-align: left;
    padding: 16px 20px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--fg-muted);
    background: var(--bg-elev);
    border-bottom: 1px solid var(--line);
    font-weight: 600;
}
.compare-table thead th:last-child { color: var(--brand-soft); }
.compare-table tbody th {
    text-align: left;
    padding: 14px 20px;
    font-weight: 600;
    color: var(--fg);
    border-top: 1px solid var(--line);
    width: 24%;
}
.compare-table tbody td {
    padding: 14px 20px;
    color: var(--fg-soft);
    border-top: 1px solid var(--line);
    vertical-align: top;
}
.compare-table tbody td:last-child { color: var(--fg); position: relative; }
.compare-table tbody td:last-child::before {
    content: '✓';
    color: var(--good);
    margin-right: 8px;
    font-weight: 700;
}
.compare-table tbody td:nth-child(2)::before {
    content: '✕';
    color: var(--crit);
    margin-right: 8px;
    font-weight: 700;
}

@media (max-width: 720px) {
    .compare-table thead { display: none; }
    .compare-table, .compare-table tbody, .compare-table tr, .compare-table th, .compare-table td { display: block; width: 100%; }
    .compare-table tbody tr { padding: 14px 18px; border-top: 1px solid var(--line); }
    .compare-table tbody th { padding: 0 0 8px; border: none; }
    .compare-table tbody td { padding: 4px 0; border: none; }
}

/* ---------- cta ---------- */
.cta {
    max-width: var(--max);
    margin: 140px auto 0;
    padding: 0 28px;
}
.cta-inner {
    position: relative;
    overflow: hidden;
    padding: 72px 32px;
    text-align: center;
    border-radius: 24px;
    background: linear-gradient(150deg, #0b2554 0%, #1d4ed8 50%, #3b82f6 100%);
    color: #fff;
    box-shadow: 0 30px 80px -30px rgba(59,130,246,0.55);
}
.cta-inner::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 12% 20%, rgba(255,255,255,0.18), transparent 35%),
        radial-gradient(circle at 95% 90%, rgba(255,255,255,0.10), transparent 40%);
    pointer-events: none;
}
.cta-inner > * { position: relative; z-index: 1; }
.cta-inner h2 {
    margin: 18px 0 14px;
    font-size: clamp(34px, 5vw, 56px);
    line-height: 1.05;
    letter-spacing: -0.025em;
    font-weight: 600;
}
.cta-inner p {
    margin: 0 auto 28px;
    max-width: 560px;
    font-size: 17px;
    color: rgba(255,255,255,0.85);
}
.cta-inner .btn-primary {
    background: #fff;
    color: var(--brand-deep);
    box-shadow: 0 10px 32px -8px rgba(0,0,0,0.35);
}
.cta-inner .btn-primary:hover { background: #f5f7ff; transform: translateY(-1px); }
.cta-foot { font-size: 13px; color: rgba(255,255,255,0.7) !important; margin-top: 22px !important; }
.cta-foot a { color: #fff; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }

/* ---------- footer ---------- */
.footer {
    max-width: var(--max);
    margin: 80px auto 0;
    padding: 40px 28px 56px;
    border-top: 1px solid var(--line);
}
.footer-cols {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1.4fr;
    gap: 40px;
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--line);
}
.footer-col h4 {
    margin: 0 0 14px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--fg-muted);
    font-weight: 600;
}
.footer-col ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.footer-col ul a {
    color: var(--fg-soft);
    font-size: 14px;
    transition: color .15s ease;
}
.footer-col ul a:hover { color: var(--fg); }
.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}
.footer-brand strong { display: block; font-size: 15px; }
.footer-brand small { display: block; font-size: 12px; color: var(--fg-muted); font-style: italic; }
.footer-blurb { margin: 0; font-size: 13px; color: var(--fg-muted); max-width: 280px; line-height: 1.5; }
.footer-col-contact address {
    font-style: normal;
    font-size: 14px;
    color: var(--fg-soft);
    line-height: 1.6;
    margin-bottom: 14px;
}
.footer-col-contact address strong { color: var(--fg); font-weight: 600; }
.footer-contact-list { gap: 10px !important; }
.footer-contact-list li { display: flex; flex-direction: column; gap: 2px; }
.footer-contact-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--fg-muted);
    font-weight: 600;
}
.footer-contact-list a { font-size: 14px; color: var(--fg) !important; font-feature-settings: 'tnum'; }
.footer-contact-list a:hover { color: var(--brand-soft) !important; }
.footer-meta { margin: 0; font-size: 12px; color: var(--fg-muted); }

@media (max-width: 820px) {
    .footer-cols { grid-template-columns: 1fr 1fr; gap: 28px; }
    .footer-col-brand { grid-column: span 2; }
}
@media (max-width: 540px) {
    .footer-cols { grid-template-columns: 1fr; gap: 24px; }
    .footer-col-brand { grid-column: span 1; }
}

/* ---------- light mode (otomatik + manuel) ---------- */
:root[data-theme="light"] {
    --bg: #fafbfc;
    --bg-elev: #f1f3f6;
    --bg-card: #ffffff;
    --fg: #0f172a;
    --fg-soft: #475569;
    --fg-muted: #6b7280;
    --line: #e5e7eb;
    --line-strong: #cbd5e1;
}
:root[data-theme="light"] body::before {
    background-image:
        radial-gradient(circle at 20% -10%, rgba(59,130,246,0.10), transparent 55%),
        radial-gradient(circle at 100% 10%, rgba(96,165,250,0.06), transparent 60%);
}
:root[data-theme="light"] .nav { background: color-mix(in srgb, #fff 80%, transparent); }
:root[data-theme="light"] .nav-cta { background: #0f172a; color: #fff; }
:root[data-theme="light"] .nav-cta:hover { background: #1e293b; }
:root[data-theme="light"] .theme-toggle { background: #fff; }
:root[data-theme="light"] .feature-meta li { background: var(--bg-elev); }
:root[data-theme="light"] .compare-table tbody td:nth-child(2) { color: var(--fg-muted); }
:root[data-theme="light"] .ribbon p { background: linear-gradient(180deg, #fff 0%, var(--bg-elev) 100%); }
:root[data-theme="light"] .loop-step { background: #fff; }

/* OS-level light tercihi varsa ve kullanıcı dark'a zorlamadıysa light değişkenleri */
@media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) {
        --bg: #fafbfc;
        --bg-elev: #f1f3f6;
        --bg-card: #ffffff;
        --fg: #0f172a;
        --fg-soft: #475569;
        --fg-muted: #6b7280;
        --line: #e5e7eb;
        --line-strong: #cbd5e1;
    }
    :root:not([data-theme="dark"]) body::before {
        background-image:
            radial-gradient(circle at 20% -10%, rgba(59,130,246,0.10), transparent 55%),
            radial-gradient(circle at 100% 10%, rgba(96,165,250,0.06), transparent 60%);
    }
    :root:not([data-theme="dark"]) .nav { background: color-mix(in srgb, #fff 80%, transparent); }
    :root:not([data-theme="dark"]) .nav-cta { background: #0f172a; color: #fff; }
    :root:not([data-theme="dark"]) .nav-cta:hover { background: #1e293b; }
    :root:not([data-theme="dark"]) .theme-toggle { background: #fff; }
    :root:not([data-theme="dark"]) .feature-meta li { background: var(--bg-elev); }
    :root:not([data-theme="dark"]) .compare-table tbody td:nth-child(2) { color: var(--fg-muted); }
    :root:not([data-theme="dark"]) .ribbon p { background: linear-gradient(180deg, #fff 0%, var(--bg-elev) 100%); }
    :root:not([data-theme="dark"]) .loop-step { background: #fff; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
    .loop-pulse, .loop-step { animation: none !important; }
    html { scroll-behavior: auto; }
}