/* ============================================================
   Vuolti Product Theme — Dark tech aesthetic
   ============================================================ */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --teal:             #4a9e8e;
    --teal-bright:      #5dc4b0;
    --teal-dim:         #2d6a5a;
    --teal-glow:        rgba(74, 158, 142, 0.15);
    --bg:               #0a0e14;
    --bg-2:             #0f1419;
    --bg-3:             #151b23;
    --bg-card:          #111820;
    --bg-elevated:      #182028;
    --text:             #c5cdd8;
    --text-bright:      #e8edf3;
    --text-dim:         #6b7a8d;
    --text-muted:       #3d4a5c;
    --border:           rgba(255,255,255,0.06);
    --border-hover:     rgba(74, 158, 142, 0.3);
    --font:             -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --mono:             "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    --container:        1200px;
    --ease:             cubic-bezier(0.16, 1, 0.3, 1);
    --radius:           12px;
}

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: var(--font);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

::selection { background: var(--teal); color: var(--bg); }

a { color: var(--teal-bright); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--teal); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 2rem; width: 100%; }

/* ============================================================
   HEADER
   ============================================================ */

.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    height: 64px;
    background: rgba(10,14,20,0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-bright);
    letter-spacing: -0.02em;
    text-decoration: none;
}

.site-logo svg { color: var(--teal); }
.site-logo:hover { color: var(--teal-bright); }

.site-nav {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    list-style: none;
}

.site-nav > a,
.site-nav .dropdown-toggle {
    padding: 0.4rem 0.8rem;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-dim);
    border-radius: 6px;
    transition: all 0.3s;
    text-decoration: none;
}

.site-nav > a:hover,
.site-nav .dropdown-toggle:hover {
    color: var(--text-bright);
    background: rgba(255,255,255,0.04);
}

.dropdown { position: relative; }

.dropdown-arrow {
    vertical-align: 1px;
    opacity: 0.5;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
    padding: 0.35rem 0;
    z-index: 100;
}

.dropdown.open .dropdown-menu { display: block; }

.dropdown-menu a {
    display: block;
    padding: 0.45rem 1rem;
    color: var(--text);
    font-size: 0.85rem;
    transition: background 0.15s;
}

.dropdown-menu a:hover {
    background: rgba(255,255,255,0.04);
    color: var(--text-bright);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 110;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 1.5px;
    background: var(--text-bright);
    transition: all 0.3s;
    transform-origin: center;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ============================================================
   MAIN CONTENT
   ============================================================ */

.site-main {
    flex: 1;
    padding: 100px 0 4rem;
}

.page-content h1 {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-bright);
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.page-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
}

.page-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-bright);
    margin-top: 2rem;
    margin-bottom: 0.5rem;
}

.page-content p {
    margin-bottom: 1rem;
    color: var(--text);
}

.page-content ul, .page-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.page-content li { margin-bottom: 0.25rem; }

.page-content a { color: var(--teal-bright); }
.page-content a:hover { color: var(--teal); }

.page-content code {
    background: var(--bg-3);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    font-family: var(--mono);
    font-size: 0.9em;
    color: var(--teal-bright);
}

.page-content pre {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1.25rem;
    border-radius: var(--radius);
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

.page-content pre code {
    background: none;
    padding: 0;
    color: var(--text);
}

.page-content strong { font-weight: 600; color: var(--text-bright); }

.page-content blockquote {
    border-left: 3px solid var(--teal-dim);
    padding-left: 1rem;
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.page-content figure { margin-bottom: 1.5rem; }
.page-content figcaption { font-size: 0.85rem; color: var(--text-dim); margin-top: 0.5rem; }
.page-content img { max-width: 100%; height: auto; border-radius: var(--radius); }

/* ============================================================
   HERO BLOCK
   ============================================================ */

.hero {
    background: var(--bg-2);
    border-bottom: 1px solid var(--border);
    padding: 5rem 0 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(74,158,142,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(74,158,142,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 80%);
}

.hero-inner {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.4rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--text-bright);
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text);
    margin-bottom: 2rem;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Hero breaks out on landing pages */
.landing-page .hero {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    padding: 6rem 0 5rem;
}

.hero-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.4s var(--ease);
    text-decoration: none;
    line-height: 1;
    padding: 0.9rem 2rem;
}

.hero-btn:hover { transform: translateY(-2px); }

.hero-btn-primary {
    background: var(--teal);
    color: #fff;
    box-shadow: 0 0 30px rgba(74,158,142,0.2), inset 0 1px 0 rgba(255,255,255,0.1);
}

.hero-btn-primary:hover {
    background: var(--teal-bright);
    color: #fff;
    box-shadow: 0 0 50px rgba(74,158,142,0.35);
}

.hero-btn-outline {
    background: transparent;
    color: var(--text-bright);
    border: 1px solid var(--border-hover);
}

.hero-btn-outline:hover {
    background: var(--teal-glow);
    color: var(--teal-bright);
    border-color: var(--teal);
}

/* Override page-content styles inside hero */
.page-content .hero h1,
.page-content .hero-title { color: var(--text-bright); }
.page-content .hero p,
.page-content .hero-subtitle { color: var(--text); }
.page-content .hero a.hero-btn-primary { color: #fff; text-decoration: none; }
.page-content .hero a.hero-btn-outline { color: var(--text-bright); text-decoration: none; }

/* ============================================================
   FEATURE CARDS BLOCK
   ============================================================ */

.feature-cards {
    display: grid;
    gap: 1.5rem;
    margin: 3rem 0;
}

.feature-cards--2col { grid-template-columns: repeat(2, 1fr); }
.feature-cards--3col { grid-template-columns: repeat(3, 1fr); }
.feature-cards--4col { grid-template-columns: repeat(4, 1fr); }

/* Full-width on landing pages */
.landing-page .feature-cards {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    padding: 4rem 2rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    left: auto;
    right: auto;
    width: auto;
}

.feature-card {
    position: relative;
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.5s var(--ease);
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--teal), transparent);
    opacity: 0;
    transition: opacity 0.5s;
}

.feature-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0,0,0,0.3), 0 0 30px var(--teal-glow);
}

.feature-card:hover::before { opacity: 1; }

.feature-card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--teal-glow);
    margin-bottom: 1.2rem;
    font-size: 1.5rem;
    line-height: 1;
}

.feature-card__title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 0.5rem;
    margin-top: 0;
}

.feature-card__desc {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.7;
    margin: 0;
}

.page-content .feature-card h3 { margin-top: 0; margin-bottom: 0.5rem; font-size: 1.05rem; color: var(--text-bright); }
.page-content .feature-card p { margin-bottom: 0; color: var(--text-dim); }

/* ============================================================
   FEATURE SECTION (section header wrapper)
   ============================================================ */

.feature-section {
    text-align: center;
    padding: 5rem 0 4rem;
    margin: 0;
}

.landing-page .feature-section {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    padding: 5rem 2rem 4rem;
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.feature-section__header {
    max-width: 680px;
    margin: 0 auto 3rem;
    text-align: center;
}

.page-content .feature-section h2.feature-section__title,
.feature-section__title {
    font-size: clamp(3rem, 6vw, 4.2rem);
    font-weight: 800;
    line-height: 1.05;
    color: var(--text-bright);
    letter-spacing: -0.02em;
    margin: 0 0 1rem;
    text-align: center;
}

.page-content .feature-section h2.feature-section__title span,
.feature-section__title span {
    color: var(--teal-bright);
}

.page-content .feature-section p.section-eyebrow {
    text-align: center;
    margin-top: 0;
}

.page-content .feature-section p.feature-section__subtitle,
.feature-section__subtitle {
    font-size: 1.05rem;
    color: var(--text);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
    text-align: center;
}

/* Feature cards inside section: constrain width, override landing-page breakout */
.landing-page .feature-section .feature-cards,
.feature-section .feature-cards {
    max-width: var(--container);
    margin: 0 auto;
    width: auto;
    position: static;
    left: auto;
    right: auto;
    padding: 0;
}

/* ============================================================
   STEPS SECTION (section header wrapper)
   ============================================================ */

.steps-section {
    text-align: center;
    padding: 5rem 0 4rem;
    margin: 0;
}

.landing-page .steps-section {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    padding: 5rem 2rem 4rem;
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.steps-section__header {
    max-width: 680px;
    margin: 0 auto 3rem;
}

.page-content .steps-section h2.steps-section__title,
.steps-section__title {
    font-size: clamp(3rem, 6vw, 4.2rem);
    font-weight: 800;
    line-height: 1.05;
    color: var(--text-bright);
    letter-spacing: -0.02em;
    margin: 0 0 1rem;
    text-align: center;
}

.page-content .steps-section h2.steps-section__title span,
.steps-section__title span {
    color: var(--teal-bright);
}

.page-content .steps-section p.section-eyebrow {
    text-align: center;
    margin-top: 0;
}

.page-content .steps-section p.steps-section__subtitle,
.steps-section__subtitle {
    font-size: 1.05rem;
    color: var(--text);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
    text-align: center;
}

/* Steps inside section: override breakout and margin */
.steps-section .steps {
    max-width: var(--container);
    margin: 0 auto;
    border-top: none;
    padding: 0;
    width: auto;
    position: static;
    left: auto;
    right: auto;
}

/* ============================================================
   STEPS BLOCK
   ============================================================ */

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 3rem 0;
    text-align: center;
    padding: 4rem 0;
    border-top: 1px solid var(--border);
}

.landing-page .steps {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    padding: 5rem 2rem;
    background: var(--bg-2);
    border-bottom: 1px solid var(--border);
}

/* When inside section wrapper, don't double the breakout/background */
.landing-page .steps-section .steps {
    width: auto;
    position: static;
    left: auto;
    right: auto;
    margin: 0 auto;
    padding: 0;
    background: none;
    border: none;
}

.step__number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    font-family: var(--mono);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--teal);
    border: 2px solid var(--teal-dim);
    background: var(--teal-glow);
    margin-bottom: 1.2rem;
}

.step__title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 0.5rem;
    margin-top: 0;
}

.step__desc {
    font-size: 0.9rem;
    color: var(--text-dim);
    max-width: 280px;
    margin: 0 auto;
    line-height: 1.7;
}

.page-content .step h3 { margin-top: 0; margin-bottom: 0.5rem; font-size: 1.05rem; color: var(--text-bright); }
.page-content .step p { margin-bottom: 0; color: var(--text-dim); }

/* ============================================================
   CTA BLOCK
   ============================================================ */

.cta-block {
    padding: 5rem 2rem;
    text-align: center;
    margin: 3rem 0 0;
    position: relative;
    overflow: hidden;
}

.landing-page .cta-block {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
}

.cta-block::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(74,158,142,0.1), transparent 70%);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
}

.cta-block__inner {
    position: relative;
    z-index: 1;
    max-width: 560px;
    margin: 0 auto;
}

.cta-block__title {
    font-size: clamp(3rem, 6vw, 4.2rem);
    font-weight: 800;
    line-height: 1.05;
    color: var(--text-bright);
    letter-spacing: -0.02em;
    margin: 0 0 1.25rem;
}

.cta-block__subtitle {
    font-size: 1.05rem;
    color: var(--text);
    max-width: 500px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

.cta-block__actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-block__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.4s var(--ease);
    text-decoration: none;
    padding: 0.85rem 2rem;
}

.cta-block__btn:hover { transform: translateY(-2px); }

.cta-block__btn--primary {
    background: var(--teal);
    color: #fff;
    box-shadow: 0 0 30px rgba(74,158,142,0.2), inset 0 1px 0 rgba(255,255,255,0.1);
}

.cta-block__btn--primary:hover {
    background: var(--teal-bright);
    color: #fff;
    box-shadow: 0 0 50px rgba(74,158,142,0.35);
}

.cta-block__btn--outline {
    background: transparent;
    color: var(--text-bright);
    border: 1px solid var(--border-hover);
}

.cta-block__btn--outline:hover {
    background: var(--teal-glow);
    color: var(--teal-bright);
    border-color: var(--teal);
}

.cta-block__note {
    margin-top: 1.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.page-content .cta-block h2 { color: var(--text-bright); margin-top: 0; font-size: clamp(3rem, 6vw, 4.2rem); }
.page-content .cta-block h2 span { color: var(--teal-bright); }
.page-content .cta-block p { color: var(--text); margin-bottom: 0; }
.page-content .cta-block p.cta-block__subtitle { margin-bottom: 2.5rem; }
.page-content .cta-block .section-eyebrow { text-align: center; margin-top: 0; }
.page-content .cta-block a { text-decoration: none; }
.page-content .cta-block a.cta-block__btn--primary { color: #fff; }
.page-content .cta-block a.cta-block__btn--outline { color: var(--text-bright); }

/* ============================================================
   SECTION HEADER PATTERN
   ============================================================ */

.page-content .section-eyebrow {
    font-family: var(--mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--teal);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 0.5rem;
    margin-top: 0;
}

/* ============================================================
   ERROR PAGE
   ============================================================ */

.error-page h1 {
    font-size: 6rem;
    font-weight: 800;
    color: var(--text-muted);
    letter-spacing: -0.05em;
}

.error-page p {
    color: var(--text-dim);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.btn-back {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--teal);
    color: #fff;
    border-radius: 8px;
    font-weight: 600;
    transition: background 0.3s;
}

.btn-back:hover { background: var(--teal-bright); color: #fff; }

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
    border-top: 1px solid var(--border);
    padding: 3rem 0 2rem;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.footer-brand {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-bright);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.footer-brand svg { color: var(--teal); }

.footer-nav {
    display: flex;
    gap: 1.5rem;
}

.footer-nav a {
    font-size: 0.82rem;
    color: var(--text-dim);
    text-decoration: none;
}

.footer-nav a:hover { color: var(--text-bright); }

.footer-copy {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */

[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

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

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
    .feature-cards--3col { grid-template-columns: repeat(2, 1fr); }
    .feature-cards--4col { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    :root { --container: 100%; }
    .container { padding: 0 1.25rem; }

    .nav-toggle { display: flex; }

    .site-nav {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(10,14,20,0.97);
        backdrop-filter: blur(24px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        z-index: 105;
    }

    .site-nav.open { display: flex; }

    .site-nav > a,
    .site-nav .dropdown-toggle {
        font-size: 1.2rem;
        padding: 0.8rem;
        color: var(--text);
    }

    .dropdown-menu {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        min-width: 0;
        text-align: center;
    }

    .site-main { padding-top: 80px; }

    .hero { padding: 3rem 0 2.5rem; }
    .landing-page .hero { padding: 4rem 0 3rem; }
    .hero-title { font-size: clamp(2rem, 8vw, 3rem); }

    .feature-cards--2col,
    .feature-cards--3col,
    .feature-cards--4col { grid-template-columns: 1fr; }

    .steps { grid-template-columns: 1fr; gap: 1.5rem; }

    .cta-block { padding: 3.5rem 1.5rem; }
    .cta-block__title { font-size: 1.75rem; }

    .footer-inner { flex-direction: column; gap: 1.5rem; text-align: center; }
    .footer-left { flex-direction: column; gap: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
    [data-reveal] { opacity: 1; transform: none; }
}