/* ─── Design Tokens ──────────────────────────────────────────────────────────── */
:root {
    --gos-bg:           #16161d;
    --gos-surface:      #1e1e2a;
    --gos-surface-alt:  #21212e;
    --gos-border:       #2e2e3f;
    --gos-purple:       #7c3aed;
    --gos-purple-dark:  #6d28d9;
    --gos-purple-glow:  rgba(124, 58, 237, 0.35);
    --gos-purple-light: #a78bfa;
    --gos-blue:         #2563eb;
    --gos-blue-light:   #60a5fa;
    --gos-text:         #e2e8f0;
    --gos-muted:        #8b95a7;
    --gos-radius:       0.75rem;
}

/* ─── Base ────────────────────────────────────────────────────────────────────── */
html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--gos-bg);
    color: var(--gos-text);
    line-height: 1.7;
}

section {
    width: 100%;
}

/* Fluid type scale */
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2.125rem); }

section h2 {
    color: var(--gos-text);
    font-weight: 700;
    letter-spacing: -0.01em;
}

/* ─── Navbar ──────────────────────────────────────────────────────────────────── */
.navbar {
    background-color: var(--gos-surface) !important;
    border-bottom: 1px solid var(--gos-border);
}

.navbar-brand {
    color: var(--gos-purple-light) !important;
    font-weight: 700;
    letter-spacing: 0.02em;
}

/* ─── Hero ────────────────────────────────────────────────────────────────────── */
#hero {
    background: linear-gradient(150deg, #0f0f1a 0%, #1a1030 55%, #0d1a2e 100%) !important;
    padding-top: 6rem !important;
    padding-bottom: 6rem !important;
    position: relative;
    overflow: hidden;
}

/* Soft purple radial glow above the heading */
#hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(124, 58, 237, 0.18) 0%, transparent 70%);
    pointer-events: none;
}

#hero h1 {
    color: #fff;
    letter-spacing: -0.02em;
}

#hero .lead {
    color: var(--gos-muted);
    font-size: clamp(1rem, 2vw, 1.2rem);
}

/* ─── Buttons ─────────────────────────────────────────────────────────────────── */
.btn-primary {
    background-color: var(--gos-purple) !important;
    border-color: var(--gos-purple) !important;
    color: #fff !important;
    border-radius: var(--gos-radius) !important;
    font-weight: 600;
    transition: background-color 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--gos-purple-dark) !important;
    border-color: var(--gos-purple-dark) !important;
    box-shadow: 0 0 0 0.2rem var(--gos-purple-glow) !important;
}

.btn-outline-light {
    border-radius: var(--gos-radius) !important;
    font-weight: 600;
    transition: background-color 0.2s ease, color 0.2s ease;
}

/* ─── Section backgrounds ─────────────────────────────────────────────────────── */
#features,
#why,
#download {
    background-color: var(--gos-bg);
}

/* Override Bootstrap's bg-light on alternate sections */
#screenshots,
#roadmap {
    background-color: var(--gos-surface-alt) !important;
}

/* ─── Feature cards ───────────────────────────────────────────────────────────── */
.card {
    background-color: var(--gos-surface) !important;
    border: 1px solid var(--gos-border) !important;
    border-radius: var(--gos-radius) !important;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
    border-color: var(--gos-purple) !important;
}

.card-title {
    color: var(--gos-text);
    font-weight: 600;
}

/* ─── Muted text ──────────────────────────────────────────────────────────────── */
.text-muted,
.card-text.text-muted {
    color: var(--gos-muted) !important;
}

/* ─── Screenshot placeholders ─────────────────────────────────────────────────── */
#screenshots .bg-secondary {
    background: linear-gradient(135deg, #252538, #1d1d2c) !important;
    border: 1px solid var(--gos-border);
    border-radius: var(--gos-radius) !important;
    color: var(--gos-muted) !important;
    font-size: 0.875rem;
    transition: border-color 0.2s ease;
}

#screenshots .bg-secondary:hover {
    border-color: var(--gos-blue) !important;
}

/* ─── List groups (Why / Roadmap) ─────────────────────────────────────────────── */
.list-group-item {
    background-color: var(--gos-surface) !important;
    border-color: var(--gos-border) !important;
    color: var(--gos-text) !important;
    transition: background-color 0.15s ease;
}

.list-group-item:hover {
    background-color: #272736 !important;
}

/* Flush list — remove side borders */
.list-group-flush .list-group-item {
    border-left: 0;
    border-right: 0;
}

/* ─── Badges ──────────────────────────────────────────────────────────────────── */
.badge.bg-success  { background-color: #16a34a !important; }
.badge.bg-primary  { background-color: var(--gos-blue)   !important; }
.badge.bg-secondary{ background-color: #374151 !important; }

/* ─── Download CTA ────────────────────────────────────────────────────────────── */
#download {
    border-top: 1px solid var(--gos-border);
}

#download .lead {
    color: var(--gos-muted);
}

/* ─── Footer ──────────────────────────────────────────────────────────────────── */
footer {
    background: linear-gradient(to right, #141420, #191925) !important;
    border-top: 1px solid var(--gos-border) !important;
    color: var(--gos-muted) !important;
}

/* ─── Download gate overlay (no Bootstrap JS dependency) ─────────────────────── */
.download-gate {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1050;
    align-items: center;
    justify-content: center;
}

.download-gate.is-open {
    display: flex;
}

.download-gate__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
}

.download-gate__dialog {
    position: relative;
    z-index: 1;
    background-color: var(--gos-surface);
    border: 1px solid var(--gos-border);
    border-radius: var(--gos-radius);
    color: var(--gos-text);
    width: 100%;
    max-width: 420px;
    padding: 1.75rem;
    margin: 1rem;
}

.download-gate__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.download-gate__header h5 {
    margin: 0;
    font-weight: 600;
    color: var(--gos-text);
}

.download-gate__close {
    background: none;
    border: none;
    color: var(--gos-muted);
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
    padding: 0 0.25rem;
    transition: color 0.15s;
}

.download-gate__close:hover { color: var(--gos-text); }

.download-gate__body p {
    color: var(--gos-muted);
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
}

.download-gate__body input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background-color: var(--gos-bg);
    border: 1px solid var(--gos-border);
    border-radius: 0.5rem;
    color: var(--gos-text);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.download-gate__body input:focus {
    border-color: var(--gos-purple);
    box-shadow: 0 0 0 0.2rem var(--gos-purple-glow);
}

.download-gate__body input::placeholder { color: var(--gos-muted); }

.download-gate__error {
    color: #f87171;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    margin-bottom: 0;
}

.download-gate__footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

.download-gate__footer button {
    padding: 0.5rem 1.25rem;
    border-radius: var(--gos-radius);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 1px solid var(--gos-border);
    transition: background-color 0.2s, color 0.2s;
}

.download-gate__btn-cancel {
    background-color: transparent;
    color: var(--gos-muted);
}

.download-gate__btn-cancel:hover {
    background-color: var(--gos-bg);
    color: var(--gos-text);
}

.download-gate__btn-submit {
    background-color: var(--gos-purple);
    border-color: var(--gos-purple) !important;
    color: #fff;
}

.download-gate__btn-submit:hover {
    background-color: var(--gos-purple-dark);
    border-color: var(--gos-purple-dark) !important;
}
}