/* =============================================================
   SimulAI.tech — Frutiger Aero Glossy Tech
   Palette: #00bfff #90ee90 #ff9500 #0099cc #00ccff #2c3e50
            #ffffff #87ceeb
   Fonts: Nunito (display), Open Sans (body), Quicksand (labels)
   ============================================================= */

*,
*::before,
*::after {
    box-sizing: border-box;
}

:root {
    --sky: #87ceeb;
    --grass: #90ee90;
    --grass-soft: #c8e6c9;
    --aero-white: #ffffff;
    --glass: rgba(255, 255, 255, 0.6);
    --glass-strong: rgba(255, 255, 255, 0.78);
    --text: #2c3e50;
    --text-soft: rgba(44, 62, 80, 0.72);
    --text-mute: rgba(44, 62, 80, 0.54);
    --aqua: #00bfff;
    --aqua-light: #00ccff;
    --aqua-dark: #0099cc;
    --orange: #ff9500;
    --orange-deep: #e07b00;

    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.08), 0 8px 40px rgba(0, 0, 0, 0.04);
    --shadow-lift: 0 10px 28px rgba(0, 122, 204, 0.18), 0 24px 60px rgba(44, 62, 80, 0.08);
    --shadow-aqua: 0 8px 18px rgba(0, 153, 204, 0.35), inset 0 1px 2px rgba(255, 255, 255, 0.45);
    --shadow-orange: 0 8px 18px rgba(224, 123, 0, 0.35), inset 0 1px 2px rgba(255, 255, 255, 0.45);

    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-pill: 999px;

    --font-display: "Nunito", "Open Sans", system-ui, sans-serif;
    --font-body: "Open Sans", system-ui, sans-serif;
    --font-label: "Quicksand", "Nunito", sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-body);
    color: var(--text);
    line-height: 1.6;
    background: linear-gradient(180deg, #87ceeb 0%, #b6e0ec 35%, #d6ecd9 70%, #c8e6c9 100%);
    background-attachment: fixed;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

img,
svg {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    color: var(--text);
    margin: 0;
    letter-spacing: -0.01em;
}

h1 {
    font-weight: 800;
    line-height: 1.05;
}

h2 {
    font-weight: 700;
    line-height: 1.15;
}

h3 {
    font-weight: 700;
    line-height: 1.25;
}

p {
    margin: 0;
}

/* -----------------------------------------------------------
   Floating bubbles
   ----------------------------------------------------------- */
.bubbles {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.bubble {
    position: absolute;
    bottom: -80px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.15) 60%, rgba(135, 206, 235, 0.05) 100%);
    box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.6),
                0 6px 24px rgba(0, 153, 204, 0.18);
    opacity: 0;
    animation: bubble-float linear infinite;
}

@keyframes bubble-float {
    0%   { transform: translate3d(0, 0, 0) scale(0.6); opacity: 0; }
    10%  { opacity: 0.9; }
    50%  { transform: translate3d(20px, -55vh, 0) scale(1); opacity: 0.85; }
    90%  { opacity: 0.6; }
    100% { transform: translate3d(-20px, -110vh, 0) scale(1.1); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
    .bubble {
        animation: none !important;
        display: none;
    }
}

/* -----------------------------------------------------------
   Layout
   ----------------------------------------------------------- */
main {
    position: relative;
    z-index: 1;
}

section {
    position: relative;
    padding: 5rem 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 3rem;
}

.section-header h2 {
    font-size: clamp(1.8rem, 3.4vw, 2.6rem);
    margin: 0.75rem 0 0.75rem;
}

.section-header p {
    color: var(--text-soft);
    font-size: 1.05rem;
}

/* -----------------------------------------------------------
   Pill labels
   ----------------------------------------------------------- */
.pill-label {
    display: inline-block;
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--aqua-dark);
    background: var(--glass-strong);
    border: 1px solid rgba(0, 191, 255, 0.25);
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-pill);
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.7),
                0 2px 6px rgba(0, 153, 204, 0.12);
}

/* -----------------------------------------------------------
   Buttons
   ----------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-pill);
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: "";
    position: absolute;
    inset: 1px 1px 50% 1px;
    border-radius: inherit;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.55) 0%, rgba(255, 255, 255, 0) 100%);
    pointer-events: none;
}

.btn:hover {
    transform: translateY(-1px);
    filter: brightness(1.05);
}

.btn:active {
    transform: translateY(0);
    filter: brightness(0.97);
}

.btn-aqua {
    color: #ffffff;
    background: linear-gradient(180deg, #00ccff 0%, #00bfff 50%, #0099cc 100%);
    box-shadow: var(--shadow-aqua);
    border: 1px solid rgba(0, 153, 204, 0.6);
    text-shadow: 0 1px 1px rgba(0, 64, 96, 0.4);
}

.btn-orange {
    color: #ffffff;
    background: linear-gradient(180deg, #ffb347 0%, #ff9500 50%, #e07b00 100%);
    box-shadow: var(--shadow-orange);
    border: 1px solid rgba(224, 123, 0, 0.55);
    text-shadow: 0 1px 1px rgba(120, 50, 0, 0.4);
}

.btn-ghost {
    color: var(--aqua-dark);
    background: var(--glass-strong);
    border: 1px solid rgba(0, 153, 204, 0.3);
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.7),
                0 2px 8px rgba(0, 153, 204, 0.1);
}

.btn-ghost::after {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0) 100%);
}

.btn-lg {
    padding: 0.95rem 1.85rem;
    font-size: 1.02rem;
}

.btn-block {
    width: 100%;
}

/* -----------------------------------------------------------
   Header / nav
   ----------------------------------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 1.5rem;
    margin: 0.85rem auto 0;
    max-width: 1200px;
    background: var(--glass-strong);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-pill);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    box-shadow: var(--shadow-soft);
    width: calc(100% - 2rem);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-family: var(--font-display);
    font-weight: 800;
    color: var(--text);
    font-size: 1.1rem;
}

.brand-orb {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #ffffff 0%, #00ccff 35%, #0099cc 75%, #2c3e50 130%);
    box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.7),
                0 4px 10px rgba(0, 153, 204, 0.4);
    position: relative;
}

.brand-orb::after {
    content: "";
    position: absolute;
    top: 4px;
    left: 5px;
    width: 9px;
    height: 5px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    filter: blur(0.5px);
}

.brand-dot {
    color: var(--aqua-dark);
    font-weight: 700;
}

.primary-nav {
    display: flex;
    gap: 1.4rem;
    font-family: var(--font-label);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-soft);
}

.primary-nav a {
    transition: color 0.18s ease;
    position: relative;
}

.primary-nav a:hover {
    color: var(--aqua-dark);
}

.header-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* -----------------------------------------------------------
   Hero
   ----------------------------------------------------------- */
.hero {
    padding-top: 4rem;
    padding-bottom: 6rem;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-copy {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.hero-title {
    font-size: clamp(2.2rem, 4.4vw, 3.4rem);
    font-weight: 800;
    background: linear-gradient(120deg, #2c3e50 0%, #0099cc 60%, #00bfff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-sub {
    color: var(--text-soft);
    font-size: 1.1rem;
    max-width: 540px;
}

.hero-cta {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.hero-meta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-top: 0.75rem;
    font-family: var(--font-label);
    font-weight: 500;
    color: var(--text-soft);
    font-size: 0.9rem;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

.meta-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.6),
                0 0 8px currentColor;
}

.meta-dot-green {
    background: radial-gradient(circle at 30% 30%, #ffffff, #90ee90 50%, #4caf50);
    color: rgba(76, 175, 80, 0.5);
}

.meta-dot-aqua {
    background: radial-gradient(circle at 30% 30%, #ffffff, #00ccff 50%, #0099cc);
    color: rgba(0, 153, 204, 0.5);
}

.meta-dot-orange {
    background: radial-gradient(circle at 30% 30%, #ffffff, #ffb347 50%, #ff9500);
    color: rgba(255, 149, 0, 0.5);
}

/* Hero visual: glassy preview */
.hero-visual {
    position: relative;
    min-height: 460px;
}

.glass-window {
    position: relative;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.78) 100%);
    border: 1px solid rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lift);
    overflow: hidden;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.glass-window::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.4) 0%, transparent 100%);
    pointer-events: none;
}

.window-bar {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.7rem 1rem;
    background: linear-gradient(180deg, rgba(0, 191, 255, 0.18), rgba(0, 153, 204, 0.08));
    border-bottom: 1px solid rgba(0, 153, 204, 0.18);
    position: relative;
    z-index: 1;
}

.window-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.6),
                inset 0 -1px 1px rgba(0, 0, 0, 0.15);
}

.dot-red { background: radial-gradient(circle at 30% 30%, #ffb3b3, #ff5f56 60%, #c1382d); }
.dot-yellow { background: radial-gradient(circle at 30% 30%, #ffe9a3, #ffbd2e 60%, #c98b15); }
.dot-green { background: radial-gradient(circle at 30% 30%, #b6f0b8, #27c93f 60%, #168c25); }

.window-title {
    margin-left: 0.6rem;
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 0.78rem;
    color: var(--text-mute);
    letter-spacing: 0.04em;
}

.window-body {
    padding: 1.4rem;
    position: relative;
    z-index: 1;
}

.metric-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.2rem;
}

.metric {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(135, 206, 235, 0.18));
    border: 1px solid rgba(0, 153, 204, 0.18);
    border-radius: var(--radius-md);
    padding: 0.7rem 0.8rem;
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.7);
}

.metric-label {
    display: block;
    font-family: var(--font-label);
    font-weight: 500;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-mute);
}

.metric-value {
    display: block;
    margin-top: 0.2rem;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--aqua-dark);
}

.chart {
    width: 100%;
    height: 160px;
    border-radius: var(--radius-md);
    background: linear-gradient(180deg, rgba(135, 206, 235, 0.16), rgba(144, 238, 144, 0.12));
    border: 1px solid rgba(0, 153, 204, 0.12);
}

.window-pills {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.pill {
    display: inline-block;
    padding: 0.3rem 0.7rem;
    border-radius: var(--radius-pill);
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 0.75rem;
    color: white;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.45),
                0 3px 8px rgba(0, 0, 0, 0.12);
}

.pill-aqua { background: linear-gradient(180deg, #00ccff, #0099cc); }
.pill-green { background: linear-gradient(180deg, #b8f0a8, #4fbf5b); }
.pill-orange { background: linear-gradient(180deg, #ffb347, #ff9500); }

/* Floating cards over hero visual */
.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.75rem 1rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(255, 255, 255, 0.82));
    border: 1px solid rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-pill);
    box-shadow: var(--shadow-lift);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    animation: float-card 7s ease-in-out infinite;
}

.card-orbit {
    top: -18px;
    right: -10px;
    animation-delay: -1s;
}

.card-spark {
    bottom: -22px;
    left: -10px;
    animation-delay: -3.5s;
}

.orbit-icon,
.spark-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.7), 0 4px 8px rgba(0, 0, 0, 0.12);
}

.orbit-icon {
    background: radial-gradient(circle at 30% 30%, #ffffff, #00ccff 50%, #0099cc);
}

.spark-icon {
    background: radial-gradient(circle at 30% 30%, #ffffff, #ffd58a 50%, #ff9500);
}

.orbit-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text);
}

.orbit-sub {
    font-family: var(--font-label);
    font-size: 0.78rem;
    color: var(--text-mute);
}

@keyframes float-card {
    0%,
    100% { transform: translateY(0); }
    50%  { transform: translateY(-12px); }
}

@media (prefers-reduced-motion: reduce) {
    .floating-card { animation: none; }
}

/* -----------------------------------------------------------
   Trust strip
   ----------------------------------------------------------- */
.trust-strip {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
    background: var(--glass-strong);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.trust-label {
    font-family: var(--font-label);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.78rem;
    color: var(--text-mute);
}

.trust-logos {
    display: flex;
    gap: 1.8rem;
    flex-wrap: wrap;
    justify-content: center;
}

.trust-logo {
    font-family: var(--font-display);
    font-weight: 800;
    color: var(--aqua-dark);
    letter-spacing: 0.04em;
    opacity: 0.8;
    text-transform: uppercase;
    font-size: 0.95rem;
}

/* -----------------------------------------------------------
   Feature grid (glossy cards)
   ----------------------------------------------------------- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.feature-card {
    position: relative;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.86) 100%);
    border: 1px solid rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-lg);
    padding: 1.6rem 1.5rem;
    box-shadow: var(--shadow-soft);
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.42) 0%, transparent 100%);
    pointer-events: none;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lift);
}

.feature-card-tall {
    grid-row: span 1;
}

.feature-icon {
    display: inline-flex;
    width: 56px;
    height: 56px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    color: white;
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.6),
                0 6px 16px rgba(0, 0, 0, 0.12);
    position: relative;
}

.feature-icon::after {
    content: "";
    position: absolute;
    top: 2px;
    left: 2px;
    right: 2px;
    height: 45%;
    border-radius: calc(var(--radius-md) - 2px) calc(var(--radius-md) - 2px) 50% 50%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.55) 0%, rgba(255, 255, 255, 0) 100%);
    pointer-events: none;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    position: relative;
    z-index: 1;
}

.icon-aqua  { background: linear-gradient(180deg, #00ccff, #0099cc); }
.icon-green { background: linear-gradient(180deg, #b3eeb3, #4fbf5b); }
.icon-orange{ background: linear-gradient(180deg, #ffc06b, #ff9500); }
.icon-sky   { background: linear-gradient(180deg, #b9e2f3, #5db1d1); }

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.4rem;
}

.feature-card p {
    color: var(--text-soft);
    font-size: 0.96rem;
}

.feature-bullets {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.feature-bullets li {
    position: relative;
    padding-left: 1.2rem;
    font-family: var(--font-label);
    font-weight: 500;
    font-size: 0.86rem;
    color: var(--text-soft);
}

.feature-bullets li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #ffffff, #00ccff 50%, #0099cc);
    box-shadow: 0 0 6px rgba(0, 153, 204, 0.4);
}

/* -----------------------------------------------------------
   Workflow
   ----------------------------------------------------------- */
.workflow-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.2rem;
    counter-reset: workflow;
}

.workflow-step {
    position: relative;
    padding: 1.5rem 1.2rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.78));
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.workflow-step::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.4) 0%, transparent 100%);
    pointer-events: none;
}

.step-number {
    display: inline-block;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.6rem;
    background: linear-gradient(180deg, #00ccff, #0099cc);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 0.4rem;
}

.workflow-step h3 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
}

.workflow-step p {
    color: var(--text-soft);
    font-size: 0.92rem;
}

/* -----------------------------------------------------------
   Stack band
   ----------------------------------------------------------- */
.stack-card {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 2.5rem;
    align-items: center;
    padding: 2.5rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.78));
    border: 1px solid rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lift);
    position: relative;
    overflow: hidden;
}

.stack-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.45) 0%, transparent 100%);
    pointer-events: none;
}

.stack-copy h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    margin: 0.6rem 0 0.6rem;
}

.stack-copy p {
    color: var(--text-soft);
    margin-bottom: 1.5rem;
}

.stack-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.8rem;
}

.stack-stat {
    padding: 0.9rem;
    border-radius: var(--radius-md);
    background: linear-gradient(180deg, rgba(135, 206, 235, 0.25), rgba(144, 238, 144, 0.18));
    border: 1px solid rgba(0, 153, 204, 0.2);
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.6);
}

.stat-value {
    display: block;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.6rem;
    color: var(--aqua-dark);
}

.stat-label {
    display: block;
    font-family: var(--font-label);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-mute);
}

.stack-visual {
    position: relative;
    min-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orbit-ring {
    position: absolute;
    border-radius: 50%;
    border: 1.5px solid rgba(0, 153, 204, 0.35);
    background: radial-gradient(circle, rgba(255, 255, 255, 0) 60%, rgba(0, 191, 255, 0.05) 100%);
    box-shadow: inset 0 0 30px rgba(0, 153, 204, 0.1);
    animation: orbit-spin 24s linear infinite;
}

.ring-a {
    width: 180px;
    height: 180px;
}

.ring-b {
    width: 260px;
    height: 260px;
    animation-duration: 36s;
    animation-direction: reverse;
}

.ring-c {
    width: 320px;
    height: 320px;
    animation-duration: 48s;
}

@keyframes orbit-spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

.orbit-core {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #ffffff 0%, #00ccff 35%, #0099cc 80%, #2c3e50 130%);
    box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.6),
                0 18px 40px rgba(0, 153, 204, 0.45);
    position: relative;
}

.orbit-core::after {
    content: "";
    position: absolute;
    top: 12px;
    left: 22px;
    width: 32px;
    height: 18px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    filter: blur(2px);
}

.orbit-tag {
    position: absolute;
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-pill);
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 0.78rem;
    color: var(--text);
    background: var(--glass-strong);
    border: 1px solid rgba(255, 255, 255, 0.85);
    box-shadow: var(--shadow-soft);
}

.tag-a { top: 14%; left: 50%; transform: translateX(-50%); }
.tag-b { bottom: 16%; left: 18%; }
.tag-c { bottom: 22%; right: 16%; }

@media (prefers-reduced-motion: reduce) {
    .orbit-ring { animation: none; }
}

/* -----------------------------------------------------------
   Pricing
   ----------------------------------------------------------- */
.price-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    align-items: stretch;
}

.price-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    padding: 1.8rem 1.6rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(255, 255, 255, 0.82));
    border: 1px solid rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.price-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 45%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.42) 0%, transparent 100%);
    pointer-events: none;
}

.price-card h3 {
    font-size: 1.2rem;
    color: var(--aqua-dark);
}

.price-card-featured {
    background: linear-gradient(180deg, rgba(0, 191, 255, 0.18), rgba(255, 255, 255, 0.92) 60%);
    border: 1px solid rgba(0, 153, 204, 0.4);
    box-shadow: 0 14px 36px rgba(0, 153, 204, 0.22),
                0 24px 60px rgba(44, 62, 80, 0.08);
    transform: translateY(-8px);
}

.featured-flag {
    position: absolute;
    top: 14px;
    right: 14px;
    padding: 0.3rem 0.7rem;
    border-radius: var(--radius-pill);
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 0.72rem;
    color: white;
    background: linear-gradient(180deg, #ffb347, #ff9500);
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.45),
                0 4px 10px rgba(255, 149, 0, 0.35);
    letter-spacing: 0.04em;
}

.price-tag {
    display: flex;
    align-items: baseline;
    gap: 0.2rem;
    font-family: var(--font-display);
    color: var(--text);
}

.price-currency {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--aqua-dark);
}

.price-number {
    font-weight: 800;
    font-size: 2.6rem;
    line-height: 1;
}

.price-period {
    font-family: var(--font-label);
    color: var(--text-mute);
    font-weight: 500;
}

.price-sub {
    color: var(--text-soft);
    font-size: 0.95rem;
    margin-bottom: 0.3rem;
}

.price-features {
    list-style: none;
    padding: 0;
    margin: 0.4rem 0 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    flex-grow: 1;
}

.price-features li {
    position: relative;
    padding-left: 1.4rem;
    color: var(--text-soft);
    font-size: 0.92rem;
}

.price-features li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.45rem;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #ffffff, #b8f0a8 40%, #4fbf5b);
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.7);
}

/* -----------------------------------------------------------
   FAQ
   ----------------------------------------------------------- */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    position: relative;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(255, 255, 255, 0.85));
    border: 1px solid rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    padding: 0.5rem 1.5rem;
    overflow: hidden;
}

.faq-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.4) 0%, transparent 100%);
    pointer-events: none;
}

.faq-item summary {
    list-style: none;
    cursor: pointer;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.02rem;
    color: var(--text);
    padding: 0.85rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    position: relative;
    z-index: 1;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: "+";
    font-family: var(--font-display);
    font-weight: 700;
    color: white;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, #00ccff, #0099cc);
    box-shadow: var(--shadow-aqua);
    transition: transform 0.25s ease, background 0.25s ease;
    flex-shrink: 0;
}

.faq-item[open] summary::after {
    content: "−";
    transform: rotate(180deg);
}

.faq-item p {
    color: var(--text-soft);
    padding: 0 0 1rem;
    font-size: 0.96rem;
    position: relative;
    z-index: 1;
}

/* -----------------------------------------------------------
   CTA band
   ----------------------------------------------------------- */
.cta-card {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 2rem;
    align-items: center;
    padding: 2.5rem;
    background: linear-gradient(135deg, rgba(0, 191, 255, 0.92), rgba(0, 153, 204, 0.88) 60%, rgba(44, 62, 80, 0.85));
    border: 1px solid rgba(255, 255, 255, 0.55);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lift);
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.32) 0%, transparent 100%);
    pointer-events: none;
}

.cta-card h2 {
    color: white;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    text-shadow: 0 2px 4px rgba(0, 64, 96, 0.4);
}

.cta-card p {
    color: rgba(255, 255, 255, 0.92);
    margin-top: 0.5rem;
}

.cta-buttons {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    justify-content: flex-end;
    position: relative;
    z-index: 1;
}

.cta-card .btn-ghost {
    color: white;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

/* -----------------------------------------------------------
   Footer
   ----------------------------------------------------------- */
.site-footer {
    margin-top: 2rem;
    padding: 3rem 1.5rem 1.5rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.35));
    border-top: 1px solid rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    position: relative;
    z-index: 1;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 2fr;
    gap: 2rem;
}

.footer-brand p {
    margin-top: 0.6rem;
    color: var(--text-soft);
    max-width: 320px;
}

.footer-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.footer-col h4 {
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--aqua-dark);
    margin-bottom: 0.6rem;
}

.footer-col a {
    display: block;
    color: var(--text-soft);
    padding: 0.2rem 0;
    transition: color 0.18s ease;
}

.footer-col a:hover {
    color: var(--aqua-dark);
}

.footer-base {
    max-width: 1200px;
    margin: 2rem auto 0;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.5);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.8rem;
    color: var(--text-mute);
    font-family: var(--font-label);
    font-size: 0.85rem;
}

.footer-status {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

/* -----------------------------------------------------------
   Reveal-on-scroll
   ----------------------------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

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

/* -----------------------------------------------------------
   Responsive
   ----------------------------------------------------------- */
@media (max-width: 980px) {
    .hero-inner,
    .stack-card,
    .cta-card {
        grid-template-columns: 1fr;
    }

    .feature-grid,
    .price-grid,
    .workflow-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-inner {
        grid-template-columns: 1fr;
    }

    .price-card-featured {
        transform: none;
    }

    .cta-buttons {
        justify-content: flex-start;
    }
}

@media (max-width: 720px) {
    .site-header {
        flex-wrap: wrap;
        border-radius: var(--radius-lg);
    }

    .primary-nav {
        order: 3;
        width: 100%;
        justify-content: space-between;
        gap: 0.5rem;
    }

    .feature-grid,
    .price-grid,
    .workflow-list,
    .footer-cols {
        grid-template-columns: 1fr;
    }

    .stack-stats,
    .metric-row {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 0.5rem;
    }

    section {
        padding: 4rem 1.2rem;
    }

    .hero-visual {
        min-height: auto;
    }

    .floating-card {
        position: static;
        margin: 0.6rem auto;
        animation: none;
    }
}