/* ================================================
   ACE Digital Global — Homepage V2
   ADG-OS-DEPLOYMENT-001 · Build Order 002
   Design: Dark / Enterprise Futurism / Minimal
   ================================================ */

/* ---------- Design Tokens ---------- */
:root {
    --color-bg: #080c10;
    --color-surface: #0e141c;
    --color-surface-2: #141d28;
    --color-border: rgba(255, 255, 255, 0.07);
    --color-accent: #3b7fff;
    --color-accent-glow: rgba(59, 127, 255, 0.25);
    --color-text-primary: #f0f4fb;
    --color-text-muted: #6b7a99;
    --color-text-subtle: #3a4560;
    --color-label: #3b7fff;

    --font-base: 'Inter', system-ui, sans-serif;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 7rem;
    --space-xxl: 10rem;

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;

    --transition: 0.25s ease;

    --container-max: 1180px;
    --container-pad: 1.5rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background: var(--color-bg);
    color: var(--color-text-primary);
    font-family: var(--font-base);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

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

ul,
ol {
    list-style: none;
}

/* ---------- Layout Utilities ---------- */
.container {
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-pad);
}

/* ---------- Typography ---------- */
.section-label {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-label);
    margin-bottom: var(--space-xs);
}

.section-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--color-text-muted);
    max-width: 520px;
}

.section-header {
    margin-bottom: var(--space-md);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    cursor: pointer;
    transition: all var(--transition);
    border: 1.5px solid transparent;
}

.btn--primary {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.btn--primary:hover {
    background: #2563eb;
    border-color: #2563eb;
    box-shadow: 0 0 36px rgba(59, 127, 255, 0.45), 0 4px 14px rgba(0, 0, 0, 0.4);
    transform: translateY(-2px);
}

.btn--primary:active {
    transform: translateY(0);
}

.btn--ghost {
    background: transparent;
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.btn--ghost:hover {
    border-color: rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}

.btn--ghost:active {
    transform: translateY(0);
}

/* ================================================
   NAV
   ================================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.1rem 0;
    border-bottom: 1px solid transparent;
    transition: background var(--transition), border-color var(--transition);
}

.nav.scrolled {
    background: rgba(8, 12, 16, 0.85);
    border-bottom-color: var(--color-border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

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

.nav__logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--color-text-primary);
}

.nav__mark {
    display: flex;
    width: 26px;
    height: 26px;
    flex-shrink: 0;
    transition: opacity var(--transition);
}

.nav__mark svg {
    width: 100%;
    height: 100%;
}

.nav__logo:hover .nav__mark {
    opacity: 0.75;
}

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

.nav__link {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: color var(--transition);
}

.nav__link:hover {
    color: var(--color-text-primary);
}

.nav__link--cta {
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-sm);
}

.nav__link--cta:hover {
    background: var(--color-accent-glow);
    color: #fff;
}

/* ================================================
   HERO
   ================================================ */
.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-xxl) 0 var(--space-xl);
    overflow: hidden;
    text-align: center;
}

/* Subtle grid background */
.hero__bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(59, 127, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 127, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 100%);
}

.hero__inner {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.hero__eyebrow {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-label);
    border: 1px solid rgba(59, 127, 255, 0.25);
    padding: 0.3rem 0.9rem;
    border-radius: 100px;
    background: rgba(59, 127, 255, 0.07);
}

.hero__headline {
    font-size: clamp(2.8rem, 7vw, 5.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1;
    color: var(--color-text-primary);
    /* Subtle glow on text */
    text-shadow: 0 0 80px rgba(59, 127, 255, 0.2);
}

.hero__subheadline {
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--color-text-muted);
    max-width: 540px;
    font-weight: 300;
    line-height: 1.5;
}

.hero__support {
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-subtle);
    border-top: 1px solid var(--color-border);
    padding-top: 1rem;
    margin-top: -0.25rem;
}

.hero__cta-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 0.5rem;
}

.hero__scroll-hint {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero__scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, transparent, var(--color-accent));
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {

    0%,
    100% {
        opacity: 0.3;
        transform: scaleY(1);
    }

    50% {
        opacity: 1;
        transform: scaleY(1.3);
    }
}

/* ================================================
   ECOSYSTEM
   ================================================ */
.ecosystem {
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--color-border);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 2rem 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
    cursor: default;
}

.card:hover {
    border-color: rgba(59, 127, 255, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(59, 127, 255, 0.1);
}

.card__icon {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--color-accent);
    flex-shrink: 0;
}

.card__icon svg {
    width: 100%;
    height: 100%;
}

.card__title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.card__body {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ================================================
   TRUST LAYER
   ================================================ */
.trust {
    padding: var(--space-xl) 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.trust-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.trust-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem 0;
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition);
}

.trust-item:last-child {
    border-bottom: none;
}

.trust-item:hover {
    background: rgba(59, 127, 255, 0.03);
}

.trust-item__icon {
    width: 2rem;
    height: 2rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
    color: var(--color-accent);
    filter: drop-shadow(0 0 6px var(--color-accent-glow));
}

.trust-item__icon svg {
    width: 100%;
    height: 100%;
}

.trust-item__title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.trust-item__tag {
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-label);
    background: rgba(59, 127, 255, 0.1);
    border: 1px solid rgba(59, 127, 255, 0.2);
    border-radius: 100px;
    padding: 0.15rem 0.6rem;
}

.trust-item__body {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    max-width: 640px;
    line-height: 1.65;
}

/* ================================================
   ACE ECOSYSTEM
   ================================================ */
.ace-ecosystem {
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--color-border);
}

.pillar-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.pillar {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 1.75rem 2rem;
    border-right: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition), border-color var(--transition);
    cursor: default;
}

.pillar:last-child {
    border-right: none;
}

/* Remove bottom border on last row — handled via nth-child for 5 items in 3-col grid */
@media (min-width: 900px) {

    .pillar:nth-child(4),
    .pillar:nth-child(5) {
        border-bottom: none;
    }
}

.pillar:hover {
    background: rgba(59, 127, 255, 0.04);
    border-color: rgba(59, 127, 255, 0.15);
}

.pillar__marker {
    width: 1.5rem;
    height: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.15rem;
    color: var(--color-accent);
    opacity: 0.7;
    transition: opacity var(--transition);
}

.pillar:hover .pillar__marker {
    opacity: 1;
}

.pillar__marker svg {
    width: 100%;
    height: 100%;
}

.pillar__title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.3rem;
    letter-spacing: -0.01em;
}

.pillar__body {
    font-size: 0.83rem;
    color: var(--color-text-muted);
    line-height: 1.55;
}

/* ================================================
   BUILD ORDER 005 ADDITIONS
   ================================================ */

/* Hero partner microline */
.hero__partner-line {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-subtle);
    margin-top: -0.75rem;
}

/* How we deploy */
.how-deploy {
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.steps-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-top: var(--space-md);
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    padding: 1.75rem 0;
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition);
}

.step:last-child {
    border-bottom: none;
}

.step:hover {
    background: rgba(59, 127, 255, 0.02);
}

.step__number {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--color-accent);
    opacity: 0.6;
    flex-shrink: 0;
    width: 2rem;
    padding-top: 0.25rem;
    font-variant-numeric: tabular-nums;
}

.step__title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.3rem;
}

.step__body {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    max-width: 560px;
}

/* Footer Evergreen line */
.footer__evergreen {
    font-size: 0.73rem;
    color: var(--color-label);
    letter-spacing: 0.03em;
    opacity: 0.7;
}

/* ================================================
   PROOF STRIP
   ================================================ */
.proof-strip {
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: 0.9rem 0;
    background: var(--color-surface);
}

.proof-strip__inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
}

.proof-strip__item {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    padding: 0.35rem 1.5rem;
    transition: color var(--transition);
}

.proof-strip__item:hover {
    color: var(--color-text-primary);
}

.proof-strip__sep {
    width: 1px;
    height: 1rem;
    background: var(--color-border);
    flex-shrink: 0;
}

/* ================================================
   CONTACT SECTION
   ================================================ */
.contact-section {
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
}

.contact-section__inner {
    max-width: 680px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-top: var(--space-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-label {
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.form-input {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    font-family: var(--font-base);
    color: var(--color-text-primary);
    width: 100%;
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
    -webkit-appearance: none;
    appearance: none;
}

.form-input::placeholder {
    color: var(--color-text-subtle);
}

.form-input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-input--textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

.contact-form .btn {
    align-self: flex-start;
}

/* ================================================
   FOOTER
   ================================================ */
.footer {
    padding: var(--space-lg) 0;
    text-align: center;
}

.footer__inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.footer__brand {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.footer__tagline {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.footer__partner {
    font-size: 0.77rem;
    color: var(--color-text-subtle);
    margin-top: 0.75rem;
    border-top: 1px solid var(--color-border);
    padding-top: 0.75rem;
    letter-spacing: 0.01em;
}

.footer__email {
    font-size: 0.85rem;
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition);
}

.footer__email:hover {
    color: #6fa3ff;
}

.footer__built {
    font-size: 0.75rem;
    color: var(--color-text-subtle);
    font-style: italic;
}

.footer__meta {
    font-size: 0.72rem;
    color: var(--color-text-subtle);
    margin-top: 0.25rem;
    letter-spacing: 0.05em;
}

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 768px) {
    .nav__links {
        gap: 1.25rem;
    }

    .hero {
        padding-top: 8rem;
    }

    .hero__cta-group {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    .trust-item {
        flex-direction: column;
        gap: 0.75rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .proof-strip__sep {
        display: none;
    }

    .proof-strip__item {
        padding: 0.3rem 0.8rem;
    }

    .contact-form .btn {
        align-self: stretch;
        text-align: center;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .nav__link:not(.nav__link--cta) {
        display: none;
    }
}