/* ============================================================
   beta.erp.tr — kurumsal site
   Dark + Light tema, rdp.erp.tr aile-tasarımıyla.
   ============================================================ */

:root, html.theme-dark {
    --bg:           #15161A;
    --bg-elev:      #1A1B20;
    --bg-card:      #1F2128;
    --bg-soft:      #101115;
    --bg-deep:      #0E0F12;
    --border:       #2D3038;
    --border-soft:  #3A3D44;
    --text:         #F2F3F5;
    --text-mute:    #9AA0A8;
    --text-dim:     #6B7079;

    --accent:       #4F7CFF;
    --accent-2:     #6EA8FF;
    --accent-soft:  rgba(79,124,255,.14);
    --green:        #10B981;
    --green-soft:   rgba(16,185,129,.14);
    --whatsapp:     #25D366;
    --whatsapp-soft:rgba(37,211,102,.14);
    --cyan:         #34B7F1;
    --cyan-soft:    rgba(52,183,241,.14);
    --violet:       #A78BFA;
    --violet-soft:  rgba(167,139,250,.14);
    --amber:        #FBBF24;
    --amber-soft:   rgba(251,191,36,.14);
    --orange:       #F97316;
    --orange-soft:  rgba(249,115,22,.14);
    --red:          #F87171;

    --nav-bg:       rgba(21,22,26,.85);
    --shadow-card:  0 4px 14px rgba(0,0,0,.25);
    --shadow-lift:  0 18px 40px -16px rgba(79,124,255,.4);

    --mono:         ui-monospace, SFMono-Regular, Consolas, Menlo, monospace;
    --sans:         -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --maxw:         1180px;
    --base-fs:      17px;
}

@media (prefers-color-scheme: light) {
    html.theme-auto {
        --bg:           #F6F8FC;
        --bg-elev:      #FFFFFF;
        --bg-card:      #FFFFFF;
        --bg-soft:      #EEF2FA;
        --bg-deep:      #E3E9F3;
        --border:       #E3E9F3;
        --border-soft:  #CDD6E5;
        --text:         #0D1C33;
        --text-mute:    #56688A;
        --text-dim:     #8497B5;

        --accent:       #2456E0;
        --accent-2:     #4F7CFF;
        --accent-soft:  rgba(36,86,224,.10);
        --green-soft:   rgba(16,185,129,.10);
        --whatsapp-soft:rgba(37,211,102,.10);
        --cyan-soft:    rgba(52,183,241,.10);
        --violet-soft:  rgba(124,58,237,.10);
        --amber-soft:   rgba(202,138,4,.12);
        --orange-soft:  rgba(234,88,12,.12);
        --violet:       #7C3AED;
        --amber:        #B45309;
        --orange:       #EA580C;

        --nav-bg:       rgba(255,255,255,.85);
        --shadow-card:  0 1px 2px rgba(13,28,51,.04), 0 4px 12px rgba(13,28,51,.06);
        --shadow-lift:  0 16px 40px -16px rgba(36,86,224,.25);
    }
}

html.theme-light {
    --bg:           #F6F8FC;
    --bg-elev:      #FFFFFF;
    --bg-card:      #FFFFFF;
    --bg-soft:      #EEF2FA;
    --bg-deep:      #E3E9F3;
    --border:       #E3E9F3;
    --border-soft:  #CDD6E5;
    --text:         #0D1C33;
    --text-mute:    #56688A;
    --text-dim:     #8497B5;

    --accent:       #2456E0;
    --accent-2:     #4F7CFF;
    --accent-soft:  rgba(36,86,224,.10);
    --green-soft:   rgba(16,185,129,.10);
    --whatsapp-soft:rgba(37,211,102,.10);
    --cyan-soft:    rgba(52,183,241,.10);
    --violet-soft:  rgba(124,58,237,.10);
    --amber-soft:   rgba(202,138,4,.12);
    --orange-soft:  rgba(234,88,12,.12);
    --violet:       #7C3AED;
    --amber:        #B45309;
    --orange:       #EA580C;

    --nav-bg:       rgba(255,255,255,.85);
    --shadow-card:  0 1px 2px rgba(13,28,51,.04), 0 4px 12px rgba(13,28,51,.06);
    --shadow-lift:  0 16px 40px -16px rgba(36,86,224,.25);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: var(--base-fs); }
body {
    margin: 0;
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    transition: background-color .25s ease, color .25s ease;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

/* ---------- Navbar ---------- */
.erp-header.site-header {
    position: sticky; top: 0; z-index: 50;
    background: var(--nav-bg);
    backdrop-filter: saturate(150%) blur(10px);
    -webkit-backdrop-filter: saturate(150%) blur(10px);
    border-bottom: 1px solid var(--border);
}
.erp-header .nav {
    display: flex; align-items: center; justify-content: space-between;
    max-width: var(--maxw); margin: 0 auto;
    padding: 16px 24px; gap: 16px;
}
.brand {
    display: inline-flex; align-items: center; gap: 12px;
    font-weight: 700; font-size: 18px; color: var(--text);
    letter-spacing: -0.01em;
}
.brand-badge {
    width: 32px; height: 32px; border-radius: 8px;
    background: linear-gradient(135deg, var(--accent), #2456e0);
    color: #fff; font-weight: 800; font-size: 17px;
    display: inline-flex; align-items: center; justify-content: center;
    box-shadow: 0 6px 16px rgba(79,124,255,.4);
}
.brand-logo-img {
    height: 38px; width: auto;
    background: #fff; padding: 5px 10px; border-radius: 8px;
    display: block;
    box-shadow: 0 4px 12px rgba(0,0,0,.25);
}
.nav-links {
    display: flex; align-items: center; gap: 4px;
    font-size: 14px;
}
.nav-links a {
    padding: 8px 14px; border-radius: 7px;
    color: var(--text-mute);
    transition: background .15s, color .15s;
}
.nav-links a:hover { color: var(--text); background: #1F2128; }
.nav-links a.active { color: var(--text); background: rgba(79,124,255,.15); }
.nav-links .lang-toggle { display: inline-flex; align-items: center; gap: 6px; }
.nav-cta {
    background: var(--accent) !important;
    color: #fff !important;
    font-weight: 600;
}
.nav-cta:hover { background: var(--accent-2) !important; }
.nav-burger { display: none; }
@media (max-width: 880px) {
    .nav-burger { display: inline-flex; padding: 8px 12px; border-radius: 7px; border: 1px solid var(--border); color: var(--text); cursor: pointer; background: transparent; }
    .nav-links { display: none; position: absolute; right: 12px; top: 64px; flex-direction: column; align-items: stretch; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 10px; padding: 8px; min-width: 220px; box-shadow: 0 20px 40px rgba(0,0,0,.4); }
    .nav-links.open { display: flex; }
    .nav-links a { padding: 10px 12px; }
}

/* ---------- Hero ---------- */
.hero {
    padding: 32px 24px 20px;
    max-width: 1020px; margin: 0 auto;
    text-align: center;
}
.hero-eyebrow-row {
    display: flex;
    gap: 8px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 22px;
}
.hero-eyebrow {
    display: inline-block;
    padding: 6px 16px;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 12.5px;
    color: var(--text-mute);
    letter-spacing: .3px;
    background: var(--bg-elev);
}
.hero-eyebrow-mobile {
    color: var(--accent);
    background: var(--accent-soft);
    border-color: transparent;
    text-decoration: none;
    font-weight: 600;
    transition: filter .15s ease, transform .15s ease;
}
.hero-eyebrow-mobile:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
    color: var(--accent);
}
.hero-eyebrow-mobile i { font-size: 11px; margin-left: 2px; }
.hero-eyebrow .dot {
    display: inline-block; width: 6px; height: 6px;
    background: var(--green); border-radius: 50%;
    margin-right: 8px; vertical-align: middle;
    box-shadow: 0 0 0 3px rgba(16,185,129,.2);
}
.hero-eyebrow strong { color: var(--text); }
.hero h1 {
    margin: 0 0 18px;
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 700; letter-spacing: -0.025em;
    background: linear-gradient(135deg, var(--text) 0%, var(--accent) 90%);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub {
    margin: 0 auto 22px; max-width: 720px;
    font-size: 19.5px; color: var(--text-mute);
    line-height: 1.65;
}
.hero-sub strong { color: var(--text); font-weight: 600; }
.hero-ctas {
    display: flex; gap: 14px; justify-content: center; flex-wrap: wrap;
}

.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 26px; border-radius: 10px;
    font-weight: 600; font-size: 15px;
    border: 1px solid transparent; cursor: pointer;
    transition: background .15s, transform .05s, border-color .15s, color .15s;
    text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-2); color: #fff; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border-soft); }
.btn-ghost:hover { background: var(--bg-card); border-color: var(--accent); color: var(--accent); }
.btn-lg { padding: 17px 32px; font-size: 16px; }
.btn-sm { padding: 8px 16px; font-size: 13px; }

/* ---------- Stats ---------- */
.stats {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 12px; max-width: var(--maxw);
    margin: 0 auto 56px; padding: 0 24px;
}
.stat {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px 18px; text-align: center;
}
.stat-num {
    font-size: 26px; font-weight: 700;
    color: var(--accent); letter-spacing: -0.02em;
    line-height: 1.1;
}
.stat-label {
    margin-top: 6px; font-size: 12px;
    color: var(--text-mute); text-transform: uppercase;
    letter-spacing: .5px;
}

/* ---------- Section ---------- */
.section {
    padding: 64px 24px;
    max-width: var(--maxw); margin: 0 auto;
}
.section-alt {
    background: var(--bg-soft);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    max-width: none; padding-left: 0; padding-right: 0;
}
.section-alt > .inner {
    max-width: var(--maxw); margin: 0 auto; padding: 0 24px;
}
.section h2, .section-alt h2 {
    text-align: center;
    font-size: clamp(26px, 3.2vw, 34px);
    margin: 0 0 10px;
    font-weight: 700; letter-spacing: -0.02em;
}
.section .lead, .section-alt .lead {
    text-align: center;
    color: var(--text-mute);
    margin: 0 auto 40px;
    max-width: 680px;
    font-size: 17.5px;
    line-height: 1.65;
}
.section-kicker {
    display: block; width: fit-content; margin: 0 auto 12px;
    padding: 4px 12px; border-radius: 999px;
    background: var(--accent-soft); color: var(--accent);
    font-size: 11px; font-weight: 700;
    letter-spacing: .8px; text-transform: uppercase;
}
.section-kicker.green { background: var(--green-soft); color: var(--green); }
.section-kicker.amber { background: var(--amber-soft); color: var(--amber); }
.section-kicker.violet { background: var(--violet-soft); color: var(--violet); }
.section-kicker.cyan { background: var(--cyan-soft); color: var(--cyan); }
.section-kicker.orange { background: var(--orange-soft); color: var(--orange); }

/* ---------- Features grid ---------- */
.features {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 18px;
}
.feature {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    transition: border-color .15s, transform .15s;
}
.feature:hover { border-color: var(--accent); transform: translateY(-2px); }
.feature-icon {
    width: 42px; height: 42px; border-radius: 10px;
    background: var(--accent-soft); color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; margin-bottom: 14px;
}
.feature-icon.green   { background: var(--green-soft);   color: var(--green); }
.feature-icon.whatsapp{ background: var(--whatsapp-soft);color: var(--whatsapp); }
.feature-icon.cyan    { background: var(--cyan-soft);    color: var(--cyan); }
.feature-icon.violet  { background: var(--violet-soft);  color: var(--violet); }
.feature-icon.amber   { background: var(--amber-soft);   color: var(--amber); }
.feature-icon.orange  { background: var(--orange-soft);  color: var(--orange); }
.feature h3 { margin: 0 0 8px; font-size: 17px; font-weight: 600; }
.feature p  { margin: 0; color: var(--text-mute); font-size: 14.5px; line-height: 1.65; }
.feature .feature-cta {
    display: inline-flex; align-items: center; gap: 6px;
    margin-top: 14px; font-size: 13px; color: var(--accent); font-weight: 600;
}
.feature .feature-cta i { transition: transform .15s; }
.feature:hover .feature-cta i { transform: translateX(3px); }

/* ---------- App tiles (link to other hosted apps) ---------- */
.app-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 18px;
}
.app-tile {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
    display: flex; flex-direction: column;
    color: var(--text);
    transition: border-color .15s, transform .15s, box-shadow .15s;
    position: relative; overflow: hidden;
}
.app-tile:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 18px 40px -16px rgba(79,124,255,.4);
}
.app-tile-head { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.app-tile-icon {
    width: 48px; height: 48px; border-radius: 12px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 22px; flex-shrink: 0;
    background: var(--accent-soft); color: var(--accent);
}
.app-tile-icon.green   { background: var(--whatsapp-soft); color: var(--whatsapp); }
.app-tile-icon.cyan    { background: var(--cyan-soft);     color: var(--cyan); }
.app-tile-icon.violet  { background: var(--violet-soft);   color: var(--violet); }
.app-tile-icon.amber   { background: var(--amber-soft);    color: var(--amber); }
.app-tile-icon.orange  { background: var(--orange-soft);   color: var(--orange); }
.app-tile-name { font-size: 18px; font-weight: 700; letter-spacing: -.01em; }
.app-tile-host { display: block; color: var(--text-dim); font-size: 12.5px; font-family: var(--mono); margin-top: 2px; }
.app-tile-desc { color: var(--text-mute); font-size: 14.5px; line-height: 1.65; margin: 0 0 16px; flex: 1; }
.app-tile-cta {
    display: inline-flex; align-items: center; gap: 6px;
    color: var(--accent); font-weight: 600; font-size: 13.5px;
    margin-top: auto;
}
.app-tile:hover .app-tile-cta i { transform: translateX(3px); }
.app-tile-cta i { transition: transform .15s; }
.app-tile .live-dot {
    display: inline-flex; align-items: center; gap: 6px;
    margin-left: auto; font-size: 11px; color: var(--green); font-weight: 600;
    letter-spacing: .4px; text-transform: uppercase;
}
.app-tile .live-dot::before {
    content: ""; width: 6px; height: 6px; border-radius: 50%;
    background: var(--green); box-shadow: 0 0 0 3px rgba(16,185,129,.25);
}

/* ---------- Carousel ---------- */
.carousel {
    position: relative;
    margin: 20px auto 40px;
    max-width: var(--maxw);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--bg-elev);
    box-shadow: 0 20px 50px -20px rgba(0,0,0,.5);
}
.carousel-track {
    display: flex;
    transition: transform .75s cubic-bezier(.65,.05,.36,1);
    will-change: transform;
}
.carousel-slide {
    flex: 0 0 100%;
    min-height: 380px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 36px;
    align-items: center;
    padding: 48px 52px;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-elev) 100%);
    position: relative; overflow: hidden;
}
.carousel-slide::before {
    content: ""; position: absolute; inset: 0;
    background: radial-gradient(ellipse 700px 400px at 85% 50%, rgba(79,124,255,.12), transparent 60%);
    opacity: 0;
    transition: opacity 1s ease;
}
.carousel-slide.is-active::before { opacity: 1; }
.carousel-slide > * { position: relative; z-index: 1; }

/* Content fades + lifts in when slide becomes active */
.carousel-slide .slide-body {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity .65s ease .15s, transform .65s cubic-bezier(.2,.7,.2,1) .15s;
}
.carousel-slide.is-active .slide-body {
    opacity: 1;
    transform: translateY(0);
}
.carousel-slide .slide-art {
    display: flex; align-items: center; justify-content: center;
    padding: 12px;
    opacity: 0;
    transform: translateX(28px) scale(.95);
    transition: opacity .7s ease .2s, transform .8s cubic-bezier(.2,.7,.2,1) .2s;
}
.carousel-slide.is-active .slide-art {
    opacity: 1;
    transform: translateX(0) scale(1);
}
.carousel-slide .slide-art img {
    width: 240px; height: 240px;
    max-width: 100%;
    border-radius: 28px;
    box-shadow: 0 18px 50px rgba(0,0,0,.45);
    transition: transform .6s ease;
}
html.theme-light .carousel-slide .slide-art img { box-shadow: 0 12px 36px rgba(13,28,51,.18); }
.carousel-slide.is-active .slide-art img {
    animation: slowFloat 9s ease-in-out forwards;
}
@keyframes slowFloat {
    0%   { transform: scale(1)    rotate(0deg); }
    50%  { transform: scale(1.04) rotate(-1.5deg); }
    100% { transform: scale(1.02) rotate(.5deg); }
}

.carousel-slide .pill {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 999px;
    background: var(--accent-soft); color: var(--accent);
    font-size: 11.5px; font-weight: 700;
    letter-spacing: .8px; text-transform: uppercase;
    margin-bottom: 14px;
}
.carousel-slide .pill.green  { background: var(--whatsapp-soft); color: var(--whatsapp); }
.carousel-slide .pill.cyan   { background: var(--cyan-soft);     color: var(--cyan); }
.carousel-slide .pill.violet { background: var(--violet-soft);   color: var(--violet); }
.carousel-slide h3 {
    font-size: clamp(24px, 2.8vw, 32px);
    margin: 0 0 14px; font-weight: 700;
    letter-spacing: -0.015em; color: var(--text);
}
.carousel-slide p {
    color: var(--text-mute); font-size: 16.5px; line-height: 1.7;
    margin: 0 0 22px;
}

/* Progress bar that fills during auto-rotate dwell */
.carousel-progress {
    position: absolute; left: 0; right: 0; bottom: 0;
    height: 3px; background: rgba(255,255,255,.04);
    z-index: 2; overflow: hidden;
}
html.theme-light .carousel-progress { background: rgba(13,28,51,.06); }
.carousel-progress::after {
    content: ""; display: block;
    height: 100%; width: 0;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    transition: width var(--carousel-dwell, 6500ms) linear;
}
.carousel.is-running .carousel-progress::after { width: 100%; }
.carousel.is-paused  .carousel-progress::after { transition: none; }

.carousel-nav {
    position: absolute; top: 50%; transform: translateY(-50%);
    width: 42px; height: 42px; border-radius: 50%;
    background: rgba(21,22,26,.7);
    border: 1px solid var(--border);
    color: var(--text); cursor: pointer; z-index: 2;
    display: inline-flex; align-items: center; justify-content: center;
    backdrop-filter: blur(8px);
    transition: background .15s, border-color .15s, color .15s;
    font-size: 16px;
}
.carousel-nav:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.carousel-nav.prev { left: 14px; }
.carousel-nav.next { right: 14px; }
.carousel-dots {
    position: absolute; bottom: 16px; left: 50%;
    transform: translateX(-50%);
    display: flex; gap: 8px; z-index: 2;
}
.carousel-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: rgba(242,243,245,.28);
    border: none; padding: 0; cursor: pointer;
    transition: background .25s ease, width .35s cubic-bezier(.4,0,.2,1);
}
html.theme-light .carousel-dot { background: rgba(13,28,51,.18); }
.carousel-dot:hover { background: rgba(242,243,245,.55); }
html.theme-light .carousel-dot:hover { background: rgba(13,28,51,.40); }
.carousel-dot.active {
    background: var(--accent); width: 28px; border-radius: 4px;
    box-shadow: 0 0 0 3px var(--accent-soft);
}

@media (max-width: 820px) {
    .carousel-slide { grid-template-columns: 1fr; padding: 32px 24px 56px; gap: 18px; }
    .carousel-slide .slide-art { order: -1; }
    .carousel-slide .slide-art img { max-height: 160px; }
    .carousel-nav { display: none; }
}

/* ---------- Steps ---------- */
.steps {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px; margin-top: 32px;
}
.step {
    position: relative;
    padding: 24px 24px 24px 66px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
}
.step-num {
    position: absolute; left: 18px; top: 22px;
    width: 32px; height: 32px; border-radius: 50%;
    background: var(--accent); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 14px;
}
.step h4 { margin: 0 0 6px; font-size: 17px; font-weight: 600; }
.step p { margin: 0; color: var(--text-mute); font-size: 14.5px; line-height: 1.65; }

/* ---------- Brand strip (references logos) ---------- */
.brand-strip {
    margin: 64px auto 32px;
    max-width: var(--maxw);
    padding: 0 24px;
    text-align: center;
}
.brand-strip-label {
    color: var(--text-dim);
    font-size: 12px; letter-spacing: .8px; text-transform: uppercase;
    font-weight: 600; margin-bottom: 24px;
}
.brand-logos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    align-items: stretch;
}
.brand-logo {
    background: #fff;
    border-radius: 12px;
    padding: 22px 24px;
    min-height: 140px;
    display: flex; align-items: center; justify-content: center;
    transition: transform .15s, box-shadow .15s;
}
.brand-logo:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,.25); }
.brand-logo img {
    max-height: 96px; max-width: 100%;
    object-fit: contain;
}

/* ---------- Use case cards ---------- */
.use-cases {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 18px;
}
.use-case {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 26px;
    display: flex; flex-direction: column;
}
.use-case-tag {
    display: inline-block; padding: 4px 10px; border-radius: 6px;
    background: var(--accent-soft); color: var(--accent);
    font-size: 11px; font-weight: 600; letter-spacing: .5px;
    text-transform: uppercase; align-self: flex-start; margin-bottom: 14px;
}
.use-case h3 { margin: 0 0 10px; font-size: 17px; font-weight: 600; }
.use-case p  { margin: 0; color: var(--text-mute); font-size: 14px; line-height: 1.65; }

/* ---------- FAQ ---------- */
.faq { max-width: 820px; margin: 0 auto; }
.qa {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 10px;
    overflow: hidden;
}
.qa summary {
    cursor: pointer; padding: 18px 22px;
    font-weight: 600; font-size: 16px; color: var(--text);
    list-style: none; position: relative; padding-right: 44px;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after {
    content: "+"; position: absolute; right: 20px; top: 50%;
    transform: translateY(-50%); font-size: 22px; color: var(--accent);
    transition: transform .2s;
}
.qa[open] summary::after { content: "−"; }
.qa-body { padding: 0 22px 18px; color: var(--text-mute); font-size: 15px; line-height: 1.7; }

/* ---------- CTA strip ---------- */
.cta-strip {
    margin: 80px auto 0;
    padding: 56px 32px;
    max-width: var(--maxw);
    border-radius: 18px;
    background:
        radial-gradient(ellipse 600px 300px at 50% 0%, rgba(79,124,255,.20), transparent 60%),
        var(--bg-card);
    border: 1px solid var(--border);
    text-align: center;
}
.cta-strip h2 {
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 700; letter-spacing: -0.02em;
    margin: 0 0 12px;
}
.cta-strip p {
    color: var(--text-mute); max-width: 560px; margin: 0 auto 26px;
    font-size: 16px;
}
.cta-strip .hero-ctas { margin-top: 0; }

/* ---------- Inner page hero ---------- */
.page-hero {
    padding: 60px 0 24px;
    max-width: var(--maxw); margin: 0 auto;
    text-align: center;
    border-bottom: 1px solid var(--border);
}
.page-hero h1 {
    font-size: clamp(30px, 4vw, 44px);
    margin: 0 0 10px; font-weight: 800;
    letter-spacing: -0.02em;
}
.page-hero .lede {
    color: var(--text-mute); font-size: 17px;
    max-width: 680px; margin: 0 auto;
}

/* ---------- Content (DB-driven) blocks rendered nicely ---------- */
.content-stack {
    max-width: 820px; margin: 0 auto;
    padding: 40px 24px;
}
.content-stack .erp-block { margin: 0 0 36px; }
.content-stack h2 {
    font-size: clamp(22px, 2.6vw, 28px);
    font-weight: 700; letter-spacing: -0.015em; margin: 0 0 10px;
}
.content-stack .erp-block-subtitle { color: var(--text-mute); font-size: 16px; margin: 0 0 12px; }
.content-stack p, .content-stack li { color: var(--text-mute); line-height: 1.7; }
.content-stack strong { color: var(--text); }
.content-stack img {
    border-radius: 12px; border: 1px solid var(--border);
    margin: 18px 0; width: 100%;
}

/* about-grid (mission/vision/values cards w/ images) */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: var(--maxw); margin: 0 auto;
    padding: 40px 24px;
}
.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    display: flex; flex-direction: column;
    transition: border-color .15s, transform .15s;
}
.about-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.about-card img {
    width: 100%; height: 160px; object-fit: cover;
    border-bottom: 1px solid var(--border);
    background: var(--bg-soft);
}
.about-card .body { padding: 22px 22px 26px; }
.about-card h3 { margin: 0 0 8px; font-size: 18px; font-weight: 700; }
.about-card p  { margin: 0; color: var(--text-mute); font-size: 14px; line-height: 1.65; }

/* ---------- Refs page ---------- */
.refs-industry {
    max-width: var(--maxw); margin: 0 auto;
    padding: 32px 24px 0;
}
.refs-industry h3 {
    color: var(--accent); font-size: 12px;
    letter-spacing: .8px; text-transform: uppercase;
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px; margin-bottom: 18px;
    font-weight: 700;
}
.refs-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
}
.refs-grid .brand-logo {
    min-height: 170px; padding: 28px;
}
.refs-grid .brand-logo img { max-height: 120px; }
.refs-grid .brand-logo span {
    color: #0d1c33; font-weight: 600; font-size: 16px;
}

/* ---------- Contact ---------- */
.contact-wrap {
    max-width: var(--maxw); margin: 0 auto;
    padding: 40px 24px;
    display: grid; gap: 24px;
    grid-template-columns: 1.4fr 1fr;
}
@media (max-width: 820px) { .contact-wrap { grid-template-columns: 1fr; } }
.contact-form, .contact-info {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 28px;
}
.contact-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
@media (max-width: 600px) { .contact-form .form-row { grid-template-columns: 1fr; } }
.contact-form label {
    display: block; font-size: 12.5px;
    color: var(--text-mute); margin-bottom: 6px;
    text-transform: uppercase; letter-spacing: .4px; font-weight: 600;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 11px 14px; border-radius: 10px;
    font-family: inherit; font-size: 14.5px;
    transition: border-color .15s, box-shadow .15s;
}
.contact-form input:focus,
.contact-form textarea:focus {
    outline: none; border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(79,124,255,.15);
}
.contact-form textarea { min-height: 140px; resize: vertical; }
.contact-form .err { color: var(--red); font-size: 12.5px; margin-top: 4px; display: block; }
.contact-success {
    padding: 16px 20px; border-radius: 10px;
    background: rgba(16,185,129,.12);
    border: 1px solid rgba(16,185,129,.3);
    color: var(--green); font-weight: 600;
}
.contact-info h3 {
    margin: 0 0 16px; font-size: 17px; font-weight: 700; color: var(--text);
}
.contact-info .info-row {
    display: flex; align-items: flex-start; gap: 12px;
    color: var(--text-mute); margin-bottom: 12px; font-size: 14px;
}
.contact-info .info-row i { color: var(--accent); margin-top: 2px; }
.contact-info a { color: var(--text); }
.contact-info a:hover { color: var(--accent); }

/* ---------- Footer ---------- */
footer.erp-footer {
    margin-top: 0;
    padding: 56px 24px 24px;
    border-top: 1px solid var(--border);
    background: var(--bg-soft);
    color: var(--text-mute);
}
/* 3-col now: brand+address | quick links | contact (live-products column dropped) */
.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 32px;
    max-width: var(--maxw); margin: 0 auto 32px;
}
@media (max-width: 880px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; } }
@media (max-width: 540px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand-col .footer-company-name {
    color: var(--text);
    font-weight: 700;
    font-size: 14px;
    margin: 6px 0 6px;
    line-height: 1.4;
}
.footer-brand-col .footer-address { margin-top: 14px; }
.footer-col h5 {
    margin: 0 0 14px; font-size: 12px;
    color: var(--text); font-weight: 700;
    letter-spacing: .8px; text-transform: uppercase;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 8px; font-size: 14.5px; }
.footer-col a {
    color: var(--text-mute);
    transition: color .15s;
}
.footer-col a:hover { color: var(--accent); }
.footer-brand {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 12px; font-weight: 700; color: var(--text);
    font-size: 17px;
}
.footer-tag { color: var(--text-dim); font-size: 13px; line-height: 1.65; max-width: 300px; }
/* "ERP Ürün Ailesi" — heading + 3 rows × 5 cols grid, 15 products. */
.footer-family-section {
    max-width: var(--maxw); margin: 0 auto;
    padding: 22px 0 18px;
    border-top: 1px solid var(--border);
    text-align: center;
}
.footer-family-title {
    color: var(--text);
    font-weight: 800;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.4px;
    margin: 0 0 18px;
}
.footer-family-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px 14px;
}
@media (max-width: 880px) { .footer-family-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 540px) { .footer-family-grid { grid-template-columns: repeat(2, 1fr); } }
.footer-family-item {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-mute);
    font-size: 14px;
    text-decoration: none;
    transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.footer-family-item:hover {
    background: var(--bg-elev);
    border-color: var(--accent);
    color: var(--text);
}
.footer-family-icon {
    font-size: 17px;
    line-height: 1;
    flex: 0 0 auto;
}
.footer-family-name {
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.footer-bottom {
    max-width: var(--maxw); margin: 24px auto 0;
    padding-top: 20px; border-top: 1px solid var(--border);
    display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
    color: var(--text-dim); font-size: 12.5px;
}
.footer-bottom .ver { font-family: var(--mono); }

/* ---------- Lang dropdown ---------- */
.lang-menu { position: relative; }
.lang-menu summary {
    list-style: none;
    cursor: pointer;
    padding: 8px 14px; border-radius: 7px;
    color: var(--text-mute); font-size: 14px;
    display: inline-flex; align-items: center; gap: 6px;
}
.lang-menu summary::-webkit-details-marker { display: none; }
.lang-menu summary:hover { color: var(--text); background: var(--bg-card); }
.lang-menu .menu {
    position: absolute; right: 0; top: 110%;
    background: var(--bg-elev); border: 1px solid var(--border);
    border-radius: 10px; padding: 6px; min-width: 160px;
    box-shadow: 0 20px 40px rgba(0,0,0,.4);
    z-index: 60;
}
.lang-menu .menu a {
    display: block; padding: 9px 12px; border-radius: 7px;
    color: var(--text-mute); font-size: 14px;
}
.lang-menu .menu a:hover, .lang-menu .menu a.active { background: var(--bg-card); color: var(--text); }

/* ---------- Theme toggle ---------- */
.theme-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px;
    background: transparent; border: 1px solid var(--border);
    border-radius: 8px; color: var(--text-mute);
    cursor: pointer; padding: 0;
    transition: color .2s, border-color .2s, background .2s, transform .3s ease;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }
/* Three-state toggle (dark → light → auto). Only the icon for the current state shows. */
.theme-toggle .theme-icon { display: none; }
html.theme-dark  .theme-toggle .theme-icon-dark  { display: block; }
html.theme-light .theme-toggle .theme-icon-light { display: block; }
html.theme-auto  .theme-toggle .theme-icon-auto  { display: block; }
html.theme-light .theme-toggle:hover { transform: rotate(20deg); }
html.theme-dark  .theme-toggle:hover { transform: rotate(-20deg); }

/* ---------- Light-theme: a few spot fixes for places that assumed dark ---------- */
html.theme-light .brand-logo-img { box-shadow: 0 1px 2px rgba(13,28,51,.08), 0 4px 12px rgba(13,28,51,.10); }
html.theme-light .erp-footer { background: var(--bg-soft); }
html.theme-light .carousel { box-shadow: 0 6px 24px rgba(13,28,51,.08); }
html.theme-light .carousel-slide .slide-art img { box-shadow: 0 10px 30px rgba(13,28,51,.18); background: var(--bg-soft); }
html.theme-light .carousel-nav { background: rgba(255,255,255,.85); color: var(--text); }
html.theme-light .carousel-nav:hover { background: var(--accent); color: #fff; }
html.theme-light .cta-strip { background:
    radial-gradient(ellipse 600px 300px at 50% 0%, rgba(36,86,224,.10), transparent 60%),
    var(--bg-card); }
html.theme-light .live-dot { color: #0a7d4f; }
html.theme-light .nav-cta { color: #fff !important; }
html.theme-light .btn-primary { color: #fff; }
html.theme-light .btn-primary:hover { color: #fff; }
html.theme-light .stat-num { color: var(--accent); }
html.theme-light a.app-tile,
html.theme-light .feature,
html.theme-light .step,
html.theme-light .qa,
html.theme-light .about-card,
html.theme-light .contact-form,
html.theme-light .contact-info {
    box-shadow: var(--shadow-card);
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ---------- Admin scope: ensure admin pages don't accidentally inherit ---------- */
body.admin-light {
    background: #f6f8fc; color: #0d1c33;
}