/* ==========================================================================
   Green RF Cell — landing page
   ========================================================================== */
:root {
    --brand: #22c55e;
    --brand-600: #16a34a;
    --brand-700: #15803d;
    --accent: #2f7cf6;
    --ink: #0b1220;
    --ink-2: #111a2e;
    --text: #0f172a;
    --muted: #5b6b82;
    --line: #e5e9f0;
    --bg: #ffffff;
    --bg-alt: #f5f8fb;
    --radius: 18px;
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);
    --shadow: 0 24px 60px -24px rgba(15, 23, 42, .28);
    --ease: cubic-bezier(.22, 1, .36, 1);
    --header-h: 74px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: 'Space Grotesk', 'Inter', sans-serif; letter-spacing: -.02em; line-height: 1.15; margin: 0; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.hp { position: absolute !important; left: -10000px !important; width: 1px; height: 1px; overflow: hidden; }

.scroll-progress {
    position: fixed; top: 0; left: 0; height: 3px; width: 100%; z-index: 1100;
    background: linear-gradient(90deg, var(--brand), var(--accent));
    transform-origin: 0 50%; transform: scaleX(0);
}

/* ---------------------------------------------------------------- Header */
.main-header {
    position: fixed; inset: 0 0 auto 0; height: var(--header-h); z-index: 1000;
    transition: background .35s, box-shadow .35s, backdrop-filter .35s, transform .35s var(--ease);
}
.main-header.scrolled {
    background: rgba(255, 255, 255, .85);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    box-shadow: 0 1px 0 var(--line), 0 10px 30px -18px rgba(15,23,42,.25);
}
.main-header.hide { transform: translateY(-100%); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-img { height: 40px; width: auto; filter: drop-shadow(0 6px 16px rgba(34,197,94,.45)); transition: transform .5s var(--ease); }
.logo:hover .logo-img { transform: rotate(-8deg) scale(1.05); }
.logo-text { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.2rem; color: #fff; letter-spacing: -.01em; transition: color .3s; white-space: nowrap; }
.logo-text b { color: var(--brand); }
.main-header.scrolled .logo-text { color: var(--text); }
.main-header.scrolled .logo-img { filter: none; }

.main-nav ul { list-style: none; display: flex; gap: 6px; margin: 0; padding: 0; }
.main-nav a {
    position: relative; display: block; padding: 8px 14px; border-radius: 10px;
    font-size: .92rem; font-weight: 500; text-decoration: none;
    color: rgba(255,255,255,.82); transition: color .25s, background .25s;
}
.main-nav a:hover { color: #fff; background: rgba(255,255,255,.08); }
.main-nav a.active { color: #fff; }
.main-nav a::after {
    content: ""; position: absolute; left: 14px; right: 14px; bottom: 3px; height: 2px; border-radius: 2px;
    background: var(--brand); transform: scaleX(0); transition: transform .35s var(--ease);
}
.main-nav a.active::after { transform: scaleX(1); }
.main-header.scrolled .main-nav a { color: #334155; }
.main-header.scrolled .main-nav a:hover { color: var(--text); background: #f1f5f9; }
.main-header.scrolled .main-nav a.active { color: var(--brand-700); }

.header-actions { display: flex; align-items: center; gap: 10px; }
.link-btn { color: #fff; text-decoration: none; font-weight: 600; font-size: .92rem; padding: 9px 14px; border-radius: 10px; transition: background .25s, color .25s; }
.link-btn:hover { background: rgba(255,255,255,.1); }
.main-header.scrolled .link-btn { color: var(--text); }
.main-header.scrolled .link-btn:hover { background: #f1f5f9; }
.auth-btn {
    display: inline-flex; align-items: center; gap: 8px;
    background: linear-gradient(135deg, var(--brand), var(--brand-600));
    color: #fff; text-decoration: none; font-weight: 600; font-size: .92rem;
    padding: 10px 18px; border-radius: 12px; white-space: nowrap;
    box-shadow: 0 8px 20px -8px rgba(22,163,74,.7);
    transition: transform .25s var(--ease), box-shadow .25s;
}
.auth-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 26px -10px rgba(22,163,74,.8); }
.auth-btn i { transition: transform .25s; }
.auth-btn:hover i { transform: translateX(3px); }

/* user menu */
.user-nav { position: relative; }
.profile-mini {
    display: flex; align-items: center; gap: 10px; cursor: pointer;
    padding: 5px 12px 5px 5px; border-radius: 999px; border: 1px solid rgba(255,255,255,.18);
    background: rgba(255,255,255,.06); color: #fff; font: inherit;
    transition: background .25s, border-color .25s;
}
.profile-mini:hover { background: rgba(255,255,255,.12); }
.main-header.scrolled .profile-mini { color: var(--text); border-color: var(--line); background: #fff; }
.nav-profile-img, .nav-initials { width: 34px; height: 34px; border-radius: 50%; }
.nav-profile-img { object-fit: cover; border: 2px solid var(--brand); }
.nav-initials { display: grid; place-items: center; background: linear-gradient(135deg, var(--brand), var(--accent)); color: #fff; font-weight: 700; font-size: .8rem; }
.user-name { font-weight: 600; font-size: .9rem; max-width: 160px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.caret { font-size: .7rem; opacity: .7; transition: transform .25s; }
.user-nav.open .caret { transform: rotate(180deg); }
.dropdown-content {
    position: absolute; right: 0; top: calc(100% + 10px); min-width: 220px;
    background: #fff; border-radius: 14px; padding: 8px; border: 1px solid var(--line);
    box-shadow: var(--shadow);
    opacity: 0; visibility: hidden; transform: translateY(-6px) scale(.98); transform-origin: top right;
    transition: opacity .2s, transform .25s var(--ease), visibility .2s;
}
.user-nav.open .dropdown-content { opacity: 1; visibility: visible; transform: none; }
.dropdown-content a {
    display: flex; gap: 10px; align-items: center; padding: 10px 12px; border-radius: 10px;
    color: #334155; text-decoration: none; font-size: .9rem; transition: background .2s, color .2s;
}
.dropdown-content a i { width: 16px; text-align: center; color: #94a3b8; }
.dropdown-content a:hover { background: #f1f5f9; color: var(--text); }
.dropdown-content a.danger:hover { background: #fef2f2; color: #b91c1c; }
.dropdown-content a.danger:hover i { color: #b91c1c; }

.menu-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; border: 1px solid rgba(255,255,255,.2); background: transparent; cursor: pointer; padding: 10px; }
.menu-toggle span { display: block; height: 2px; background: #fff; border-radius: 2px; margin: 5px 0; transition: transform .3s var(--ease), opacity .2s; }
.main-header.scrolled .menu-toggle { border-color: var(--line); }
.main-header.scrolled .menu-toggle span { background: var(--text); }
.menu-open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-open .menu-toggle span:nth-child(2) { opacity: 0; }
.menu-open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------------------------------------------------------- Buttons */
.primary-btn, .secondary-btn {
    position: relative; overflow: hidden;
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    padding: 14px 24px; border-radius: 14px; font-weight: 600; font-size: 1rem;
    text-decoration: none; cursor: pointer; border: 0; font-family: inherit;
    transition: transform .25s var(--ease), box-shadow .25s, background .25s, border-color .25s;
}
.primary-btn {
    color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-600));
    box-shadow: 0 14px 30px -12px rgba(22,163,74,.75);
}
.primary-btn:hover { transform: translateY(-2px); box-shadow: 0 20px 36px -14px rgba(22,163,74,.85); }
.primary-btn::after {
    content: ""; position: absolute; top: 0; left: -120%; width: 60%; height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255,255,255,.35), transparent);
    transform: skewX(-20deg); transition: left .8s;
}
.primary-btn:hover::after { left: 140%; }
.secondary-btn { color: #fff; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.22); }
.secondary-btn:hover { background: rgba(255,255,255,.12); transform: translateY(-2px); }

/* ---------------------------------------------------------------- Hero */
.hero {
    position: relative; overflow: hidden; color: #e2e8f0;
    min-height: 100vh; display: flex; align-items: center;
    padding: calc(var(--header-h) + 40px) 0 90px;
    background:
        radial-gradient(1100px 650px at 15% -10%, rgba(34, 197, 94, .25), transparent 60%),
        radial-gradient(900px 600px at 110% 20%, rgba(47, 124, 246, .25), transparent 60%),
        linear-gradient(170deg, var(--ink) 0%, var(--ink-2) 100%);
}
.hero canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .85; }
.hero-glow {
    position: absolute; width: 520px; height: 520px; border-radius: 50%;
    right: -120px; bottom: -200px; filter: blur(90px);
    background: radial-gradient(circle, rgba(34,197,94,.35), transparent 65%);
    animation: floatGlow 12s ease-in-out infinite alternate;
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }

.eyebrow {
    display: inline-flex; align-items: center; gap: 10px;
    font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 600;
    color: #86efac; background: rgba(34,197,94,.12); border: 1px solid rgba(34,197,94,.3);
    padding: 7px 14px; border-radius: 999px;
}
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--brand); animation: pulse 2s infinite; }
.hero h1 { font-size: clamp(2.2rem, 4.1vw, 3.5rem); color: #fff; margin: 22px 0 18px; }
.gradient-text {
    background: linear-gradient(90deg, #4ade80, #22d3ee, #60a5fa, #4ade80);
    background-size: 300% 100%;
    -webkit-background-clip: text; background-clip: text; color: transparent;
    animation: shimmer 8s linear infinite;
}
.hero .lead { font-size: 1.12rem; color: #94a3b8; max-width: 560px; margin: 0 0 22px; }

.rotator { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; color: #e2e8f0; margin-bottom: 30px; min-height: 28px; }
.rotator i { color: #facc15; }
.rotator-text { color: #4ade80; }
.caret-blink { color: #4ade80; animation: blink 1s steps(1) infinite; margin-left: -6px; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 44px; }

.stats { display: grid; grid-template-columns: repeat(4, auto); gap: 32px; margin: 0; justify-content: start; }
.stats div { border-left: 2px solid rgba(34,197,94,.45); padding-left: 14px; }
.stats dt { font-family: 'Space Grotesk', sans-serif; font-size: 1.8rem; font-weight: 700; color: #fff; line-height: 1.1; }
.stats dd { margin: 4px 0 0; color: #94a3b8; font-size: .85rem; }

.hero-visual { position: relative; perspective: 1400px; }
.browser-frame {
    border-radius: 16px; overflow: hidden; background: #0f172a;
    border: 1px solid rgba(255,255,255,.12);
    box-shadow: 0 40px 90px -30px rgba(0,0,0,.8), 0 0 0 1px rgba(34,197,94,.08), 0 0 80px -20px rgba(34,197,94,.35);
    transform: rotateY(-8deg) rotateX(4deg);
    transition: transform .6s var(--ease);
    animation: floatY 7s ease-in-out infinite;
}
.browser-bar { display: flex; align-items: center; gap: 7px; padding: 11px 14px; background: #111a2e; border-bottom: 1px solid rgba(255,255,255,.06); }
.browser-bar span { width: 10px; height: 10px; border-radius: 50%; background: #334155; }
.browser-bar span:nth-child(1) { background: #f87171; }
.browser-bar span:nth-child(2) { background: #fbbf24; }
.browser-bar span:nth-child(3) { background: #34d399; }
.browser-bar em { margin-left: 12px; font-style: normal; font-size: .75rem; color: #64748b; background: #0b1220; padding: 3px 12px; border-radius: 6px; }
.browser-frame img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }

.float-card {
    position: absolute; display: flex; gap: 12px; align-items: center;
    background: rgba(255,255,255,.95); color: var(--text); border-radius: 14px; padding: 12px 16px;
    box-shadow: 0 20px 40px -18px rgba(0,0,0,.55); font-size: .82rem;
    animation: floatY 6s ease-in-out infinite;
}
.float-card i { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: #dcfce7; color: var(--brand-700); font-size: 1rem; }
.float-card strong { display: block; font-size: .88rem; }
.float-card span { color: var(--muted); }
.float-card .up { color: var(--brand-700); font-weight: 600; }
.float-card .up i { display: inline; width: auto; height: auto; background: none; font-size: .8rem; }
.fc-1 { left: -34px; top: 16%; animation-delay: -1s; }
.fc-2 { right: -22px; top: 44%; animation-delay: -3s; }
.fc-2 > i { background: #dbeafe; color: var(--accent); }
.fc-3 { left: 12%; bottom: -26px; animation-delay: -2s; }

.scroll-cue { position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); z-index: 1; width: 26px; height: 42px; border: 2px solid rgba(255,255,255,.35); border-radius: 14px; }
.scroll-cue span { position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; margin-left: -2px; border-radius: 2px; background: #fff; animation: scrollCue 1.8s infinite; }

/* ---------------------------------------------------------------- Vendors */
.vendors { border-bottom: 1px solid var(--line); background: #fff; }
.vendors .container { display: flex; align-items: center; justify-content: center; gap: 40px; flex-wrap: wrap; padding-top: 26px; padding-bottom: 26px; }
.vendors p { margin: 0; color: var(--muted); font-size: .88rem; }
.vendors ul { list-style: none; display: flex; gap: 40px; margin: 0; padding: 0; flex-wrap: wrap; justify-content: center; }
.vendors li { font-family: 'Space Grotesk', sans-serif; font-weight: 700; letter-spacing: .12em; color: #94a3b8; transition: color .3s; }
.vendors li:hover { color: var(--text); }

/* ---------------------------------------------------------------- Sections */
.section { padding: 110px 0; }
.section.alt { background: var(--bg-alt); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 60px; }
.kicker {
    display: inline-block; font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
    color: var(--brand-600); margin-bottom: 12px;
}
.section-head h2 { font-size: clamp(1.9rem, 3.4vw, 2.7rem); margin-bottom: 14px; }
.section-head p { color: var(--muted); font-size: 1.05rem; margin: 0; }

/* Tool cards */
.tool-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.tool-card {
    position: relative; display: flex; flex-direction: column;
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
    padding: 30px 24px 24px; text-decoration: none; color: var(--text);
    box-shadow: var(--shadow-sm);
    transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .3s;
    transform-style: preserve-3d; will-change: transform;
}
.tool-card::before {
    content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
    background: linear-gradient(135deg, rgba(34,197,94,.7), rgba(47,124,246,.6));
    -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 .35s;
}
.tool-card:hover { box-shadow: 0 30px 60px -28px rgba(15,23,42,.35); border-color: transparent; }
.tool-card:hover::before { opacity: 1; }
.hex-icon {
    width: 58px; height: 64px; display: grid; place-items: center; margin-bottom: 22px;
    clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
    background: linear-gradient(145deg, #4ade80, var(--brand-600)); color: #fff; font-size: 1.35rem;
    transition: transform .5s var(--ease);
}
.hex-icon.blue { background: linear-gradient(145deg, #60a5fa, var(--accent)); }
.tool-card:hover .hex-icon { transform: rotate(-8deg) scale(1.06); }
.tool-card h3 { font-size: 1.3rem; margin-bottom: 14px; }
.tool-card ul { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 10px; flex: 1; }
.tool-card li { position: relative; padding-left: 22px; color: var(--muted); font-size: .92rem; line-height: 1.5; }
.tool-card li::before { content: "\f00c"; font-family: 'Font Awesome 6 Free'; font-weight: 900; position: absolute; left: 0; top: 1px; font-size: .75rem; color: var(--brand-600); }
.card-link { font-weight: 600; font-size: .92rem; color: var(--brand-700); display: inline-flex; gap: 8px; align-items: center; }
.card-link i { transition: transform .3s var(--ease); }
.tool-card:hover .card-link i { transform: translateX(5px); }

/* Details */
.detail-row { display: grid; grid-template-columns: 1fr 1.1fr; gap: 64px; align-items: center; }
.detail-row + .detail-row { margin-top: 100px; }
.detail-row.reverse .detail-text { order: 2; }
.detail-text h3 { font-size: clamp(1.6rem, 2.6vw, 2.1rem); margin-bottom: 16px; }
.detail-text p { color: var(--muted); font-size: 1.02rem; margin: 0 0 20px; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.checks li { display: flex; gap: 12px; align-items: center; font-weight: 500; font-size: .95rem; }
.checks i { width: 24px; height: 24px; flex: none; border-radius: 50%; display: grid; place-items: center; font-size: .7rem; background: #dcfce7; color: var(--brand-700); }
.detail-media { margin: 0; border-radius: 20px; overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); background: #fff; }
.detail-media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; transition: transform 1.2s var(--ease); }
.detail-media:hover img { transform: scale(1.04); }

/* Workflow */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; position: relative; }
.steps::before {
    content: ""; position: absolute; top: 58px; left: 16%; right: 16%; height: 2px;
    background: repeating-linear-gradient(90deg, #cbd5e1 0 8px, transparent 8px 16px);
    z-index: 0;
}
.steps li {
    position: relative; z-index: 1; text-align: center; background: #fff; border: 1px solid var(--line);
    border-radius: var(--radius); padding: 34px 26px 30px; box-shadow: var(--shadow-sm);
    transition: transform .4s var(--ease), box-shadow .4s;
}
.steps li:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.steps li > i {
    width: 64px; height: 64px; border-radius: 20px; display: grid; place-items: center; margin: 0 auto 18px;
    font-size: 1.5rem; color: #fff; background: linear-gradient(135deg, var(--brand), var(--accent));
    box-shadow: 0 14px 30px -12px rgba(47,124,246,.6);
}
.step-no { position: absolute; top: 14px; right: 18px; font-family: 'Space Grotesk', sans-serif; font-weight: 700; color: #e2e8f0; font-size: 1.6rem; }
.steps h3 { font-size: 1.2rem; margin-bottom: 8px; }
.steps p { color: var(--muted); margin: 0; font-size: .95rem; }

/* Roadmap */
.feature-card {
    display: grid; grid-template-columns: 1fr 1fr; gap: 0; overflow: hidden;
    background: linear-gradient(160deg, var(--ink), var(--ink-2)); color: #cbd5e1;
    border-radius: 24px; box-shadow: var(--shadow);
}
.feature-text { padding: 48px; }
.feature-text h3 { color: #fff; font-size: clamp(1.6rem, 2.6vw, 2.1rem); margin: 18px 0 16px; }
.feature-text p { margin: 0; line-height: 1.75; }
.badge { display: inline-flex; gap: 8px; align-items: center; font-size: .8rem; font-weight: 600; color: #fde68a; background: rgba(250,204,21,.12); border: 1px solid rgba(250,204,21,.3); padding: 6px 12px; border-radius: 999px; }
.feature-media { margin: 0; min-height: 100%; }
.feature-media img { width: 100%; height: 100%; object-fit: cover; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 32px; align-items: start; }
.contact-form { background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: 34px; box-shadow: var(--shadow-sm); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.float-field { position: relative; margin-bottom: 18px; }
.float-field input, .float-field textarea {
    width: 100%; border: 1.5px solid var(--line); border-radius: 12px; background: #fff;
    font: 400 .98rem 'Inter', sans-serif; color: var(--text); padding: 22px 16px 8px;
    transition: border-color .2s, box-shadow .2s;
}
.float-field textarea { resize: vertical; min-height: 140px; }
.float-field label {
    position: absolute; left: 17px; top: 16px; color: #94a3b8; font-size: .95rem; pointer-events: none;
    transition: transform .2s var(--ease), color .2s, font-size .2s; transform-origin: left top;
}
.float-field input:focus, .float-field textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 4px rgba(34,197,94,.14); }
.float-field input:focus + label, .float-field input:not(:placeholder-shown) + label,
.float-field textarea:focus + label, .float-field textarea:not(:placeholder-shown) + label {
    transform: translateY(-9px) scale(.78); color: var(--brand-700);
}
.float-field.invalid input, .float-field.invalid textarea { border-color: #ef4444; }
.submit-btn { width: 100%; }
.submit-btn .spinner { display: none; width: 18px; height: 18px; border: 2px solid rgba(255,255,255,.5); border-top-color: #fff; border-radius: 50%; animation: spin .8s linear infinite; }
.submit-btn.loading .spinner { display: inline-block; }
.submit-btn.loading i { display: none; }

.contact-info { display: grid; gap: 16px; }
.info-item {
    display: flex; gap: 16px; align-items: center; background: #fff; border: 1px solid var(--line);
    border-radius: 18px; padding: 18px 20px; transition: transform .35s var(--ease), box-shadow .35s;
}
.info-item:hover { transform: translateX(6px); box-shadow: var(--shadow-sm); }
.contact-icon { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: #dcfce7; color: var(--brand-700); flex: none; }
.info-item small, .social small { display: block; color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 600; }
.info-item a, .info-item span { color: var(--text); font-weight: 600; text-decoration: none; }
.info-item a:hover { color: var(--brand-700); }
.social { background: linear-gradient(135deg, var(--ink), var(--ink-2)); border-radius: 18px; padding: 20px; display: flex; align-items: center; justify-content: space-between; }
.social small { color: #94a3b8; }
.social-link { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: #0a66c2; color: #fff; text-decoration: none; transition: transform .3s var(--ease); }
.social-link:hover { transform: translateY(-3px) rotate(-6deg); }

/* Footer */
.site-footer { background: var(--ink); color: #94a3b8; padding: 40px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-brand { display: flex; gap: 12px; align-items: center; }
.footer-brand img { width: 40px; height: 40px; object-fit: contain; }
.footer-brand strong { display: block; color: #fff; }
.footer-brand span { font-size: .82rem; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-links a { color: #cbd5e1; text-decoration: none; font-size: .9rem; }
.footer-links a:hover { color: #4ade80; }
.copyright { margin: 0; font-size: .85rem; width: 100%; text-align: center; border-top: 1px solid rgba(255,255,255,.08); padding-top: 22px; }

.back-to-top {
    position: fixed; right: 22px; bottom: 22px; z-index: 900; width: 46px; height: 46px; border-radius: 14px;
    border: 0; cursor: pointer; color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-600));
    box-shadow: 0 12px 26px -10px rgba(22,163,74,.8);
    opacity: 0; visibility: hidden; transform: translateY(12px); transition: all .35s var(--ease);
}
.back-to-top.show { opacity: 1; visibility: visible; transform: none; }
.back-to-top:hover { transform: translateY(-3px); }

/* Toast notifications */
.notification {
    position: fixed; top: 90px; right: 22px; z-index: 1200; display: flex; gap: 12px; align-items: flex-start;
    min-width: 300px; max-width: 400px; background: #fff; border-radius: 14px; padding: 16px;
    box-shadow: var(--shadow); border-left: 4px solid var(--brand);
    transform: translateX(120%); transition: transform .45s var(--ease);
}
.notification.show { transform: none; }
.notification-error { border-left-color: #ef4444; }
.notification-icon { font-size: 1.2rem; color: var(--brand-600); }
.notification-error .notification-icon { color: #ef4444; }
.notification-title { font-weight: 700; margin-bottom: 2px; }
.notification-message { color: var(--muted); font-size: .9rem; }
.notification-close { margin-left: auto; border: 0; background: none; font-size: 1.3rem; line-height: 1; color: #94a3b8; cursor: pointer; }

/* ---------------------------------------------------------------- Reveal on scroll */
.reveal, .reveal-left, .reveal-right {
    opacity: 0; transition: opacity .9s var(--ease), transform .9s var(--ease);
    transition-delay: var(--d, 0s);
}
.reveal { transform: translateY(28px); }
.reveal-left { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }
.in-view { opacity: 1; transform: none; }
.tool-card.in-view { transition: opacity .9s var(--ease), transform .45s var(--ease), box-shadow .45s var(--ease), border-color .3s; transition-delay: var(--d, 0s), 0s, 0s, 0s; }
.no-js .reveal, .no-js .reveal-left, .no-js .reveal-right { opacity: 1; transform: none; }

/* ---------------------------------------------------------------- Keyframes */
@keyframes shimmer { to { background-position: 300% 0; } }
@keyframes blink { 50% { opacity: 0; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes floatY { 0%,100% { translate: 0 0; } 50% { translate: 0 -12px; } }
@keyframes floatGlow { to { transform: translate(-80px, -60px) scale(1.15); } }
@keyframes scrollCue { 0% { opacity: 0; transform: translateY(0); } 40% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(34,197,94,.7); } 70% { box-shadow: 0 0 0 10px rgba(34,197,94,0); } 100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); } }

/* ---------------------------------------------------------------- Responsive */
@media (max-width: 1100px) {
    .tool-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-grid { grid-template-columns: 1fr; gap: 64px; }
    .hero-visual { max-width: 640px; margin: 0 auto; width: 100%; }
    .stats { grid-template-columns: repeat(2, auto); gap: 22px 40px; }
}
@media (max-width: 900px) {
    :root { --header-h: 66px; }
    .main-nav {
        position: fixed; top: var(--header-h); left: 0; right: 0;
        background: rgba(11,18,32,.97); backdrop-filter: blur(14px);
        padding: 12px 24px 24px; clip-path: inset(0 0 100% 0); transition: clip-path .45s var(--ease);
    }
    .menu-open .main-nav { clip-path: inset(0 0 0 0); }
    .main-nav ul { flex-direction: column; gap: 2px; }
    .main-nav a, .main-header.scrolled .main-nav a { color: #e2e8f0; padding: 14px 8px; font-size: 1rem; }
    .main-header.scrolled .main-nav a:hover { background: rgba(255,255,255,.06); color: #fff; }
    .menu-toggle { display: block; }
    .link-btn, .user-name { display: none; }
    .detail-row, .detail-row.reverse { grid-template-columns: 1fr; gap: 32px; }
    .detail-row.reverse .detail-text { order: 0; }
    .steps { grid-template-columns: 1fr; }
    .steps::before { display: none; }
    .feature-card { grid-template-columns: 1fr; }
    .feature-text { padding: 32px 26px; }
    .contact-grid { grid-template-columns: 1fr; }
    .section { padding: 80px 0; }
}
@media (max-width: 600px) {
    .container { padding: 0 18px; }
    .tool-grid, .form-row { grid-template-columns: 1fr; }
    .form-row { gap: 0; }
    .auth-btn { padding: 9px 14px; }
    .auth-btn i { display: none; }
    .logo-text { font-size: 1.05rem; }
    .logo-img { height: 34px; }
    .float-card { display: none; }
    .browser-frame { transform: none; }
    .contact-form { padding: 24px 18px; }
    .hero { min-height: auto; }
    .scroll-cue { display: none; }
    .notification { left: 16px; right: 16px; min-width: 0; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
    .reveal, .reveal-left, .reveal-right { opacity: 1; transform: none; }
}