:root {
    --gp-navy: #1e293b;
    --gp-navy-dark: #0f172a;
    --gp-blue: #3b82f6;
    --gp-blue-hover: #2563eb;
    --gp-blue-soft: #dbeafe;
    --gp-green: #10b981;
    --gp-green-soft: #d1fae5;
    --gp-amber: #f59e0b;
    --gp-red: #ef4444;
    --gp-gray-50: #f8fafc;
    --gp-gray-100: #f1f5f9;
    --gp-gray-200: #e2e8f0;
    --gp-gray-300: #cbd5e1;
    --gp-gray-400: #94a3b8;
    --gp-gray-500: #64748b;
    --gp-gray-600: #475569;
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--gp-gray-50);
    color: var(--gp-navy);
    -webkit-font-smoothing: antialiased;
}

/* ═══ NAVBAR ═══ */
.landing-nav {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1rem 2rem;
}

.landing-nav-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.landing-nav-logo {
    font-size: 1.15rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    letter-spacing: -.02em;
    display: flex;
    align-items: center;
    gap: .5rem;
}

.landing-nav-logo i { color: var(--gp-blue); }
.landing-nav-logo:hover { color: #fff; }

.landing-nav-links {
    display: flex;
    align-items: center;
    gap: .5rem;
}

.nav-link-landing {
    color: var(--gp-gray-400);
    text-decoration: none;
    font-size: .82rem;
    font-weight: 500;
    padding: .45rem .85rem;
    border-radius: .4rem;
    transition: all .2s;
}

.nav-link-landing:hover {
    color: #fff;
    background: rgba(255,255,255,.06);
}

.nav-btn-login {
    color: #fff;
    text-decoration: none;
    font-size: .82rem;
    font-weight: 600;
    padding: .45rem 1.1rem;
    border-radius: .4rem;
    background: var(--gp-blue);
    transition: all .2s;
}

.nav-btn-login:hover {
    background: var(--gp-blue-hover);
    color: #fff;
    transform: translateY(-1px);
}

.nav-btn-register {
    color: var(--gp-gray-300);
    text-decoration: none;
    font-size: .82rem;
    font-weight: 600;
    padding: .45rem 1.1rem;
    border-radius: .4rem;
    border: 1.5px solid rgba(255,255,255,.15);
    transition: all .2s;
    background: transparent;
    cursor: pointer;
}

.nav-btn-register:hover {
    color: #fff;
    border-color: rgba(255,255,255,.3);
    background: rgba(255,255,255,.04);
}

/* ═══ HERO ═══ */
.hero {
    background: linear-gradient(135deg, var(--gp-navy-dark) 0%, var(--gp-navy) 50%, #1a2744 100%);
    color: #fff;
    padding: 7rem 2rem 3rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59,130,246,.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(59,130,246,.06) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 1100px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800;
    letter-spacing: -.04em;
    line-height: 1.1;
    margin-bottom: .75rem;
}

.hero h1 span { color: var(--gp-blue); }

.hero-subtitle {
    font-size: 1.05rem;
    color: var(--gp-gray-400);
    max-width: 550px;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    gap: .75rem;
    flex-wrap: wrap;
}

.btn-hero {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .7rem 1.6rem;
    border-radius: .5rem;
    font-weight: 600;
    font-size: .9rem;
    text-decoration: none;
    transition: all .2s;
}

.btn-hero-primary {
    background: var(--gp-blue);
    color: #fff;
}

.btn-hero-primary:hover {
    background: var(--gp-blue-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(59,130,246,.3);
}

.btn-hero-outline {
    background: transparent;
    color: var(--gp-gray-400);
    border: 1.5px solid rgba(255,255,255,.15);
}

.btn-hero-outline:hover {
    color: #fff;
    border-color: rgba(255,255,255,.3);
    background: rgba(255,255,255,.04);
}

/* ═══ FEATURES ═══ */
.features-section {
    max-width: 1100px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.features-header {
    text-align: center;
    margin-bottom: 3rem;
}

.features-header h2 {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -.03em;
    margin-bottom: .5rem;
}

.features-header p {
    color: var(--gp-gray-500);
    font-size: .95rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.feature-card {
    background: #fff;
    border: 1px solid var(--gp-gray-200);
    border-radius: .75rem;
    padding: 1.75rem;
    transition: all .25s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,.06);
    border-color: var(--gp-blue-soft);
}

.feature-icon {
    width: 44px;
    height: 44px;
    border-radius: .5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.feature-icon.blue { background: var(--gp-blue-soft); color: var(--gp-blue); }
.feature-icon.green { background: var(--gp-green-soft); color: var(--gp-green); }
.feature-icon.amber { background: #fef3c7; color: var(--gp-amber); }
.feature-icon.red { background: #fee2e2; color: var(--gp-red); }
.feature-icon.navy { background: #e2e8f0; color: var(--gp-navy); }
.feature-icon.purple { background: #ede9fe; color: #7c3aed; }

.feature-card h5 {
    font-size: .95rem;
    font-weight: 700;
    margin-bottom: .4rem;
}

.feature-card p {
    color: var(--gp-gray-500);
    font-size: .82rem;
    line-height: 1.6;
    margin: 0;
}

/* ═══ DEMO ACCESS ═══ */
.demo-section {
    background: var(--gp-navy-dark);
    padding: 4rem 2rem;
}

.demo-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.demo-content h2 {
    font-size: 1.6rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: .5rem;
    letter-spacing: -.02em;
}

.demo-content > p {
    color: var(--gp-gray-400);
    font-size: .9rem;
    margin-bottom: 2rem;
}

.demo-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.demo-card {
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: .75rem;
    padding: 1.5rem;
    text-align: left;
    cursor: pointer;
    transition: all .2s;
}

.demo-card:hover {
    background: rgba(59,130,246,.08);
    border-color: rgba(59,130,246,.25);
    transform: translateY(-2px);
}

.demo-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: .75rem;
}

.demo-card-role {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
}

.demo-card-badge {
    font-size: .6rem;
    padding: .25em .6em;
    border-radius: .25rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.demo-card.admin .demo-card-badge { background: rgba(239,68,68,.15); color: #f87171; }
.demo-card.vendedor .demo-card-badge { background: rgba(59,130,246,.15); color: #60a5fa; }

.demo-card-perms {
    list-style: none;
    padding: 0;
    margin: 0;
}

.demo-card-perms li {
    font-size: .78rem;
    color: var(--gp-gray-400);
    padding: .2rem 0;
    display: flex;
    align-items: center;
    gap: .4rem;
}

.demo-card-perms li i { font-size: .7rem; color: var(--gp-green); }
.demo-card-perms li i.bi-x-lg { color: var(--gp-red); }

.demo-card-btn {
    display: block;
    width: 100%;
    margin-top: 1rem;
    padding: .55rem;
    border: 1.5px solid rgba(255,255,255,.12);
    border-radius: .4rem;
    background: transparent;
    color: #fff;
    font-size: .82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
}

.demo-card-btn:hover {
    background: var(--gp-blue);
    border-color: var(--gp-blue);
}

.demo-readonly-note {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    margin-top: 1rem;
    font-size: .72rem;
    color: var(--gp-gray-500);
    background: rgba(255,255,255,.04);
    padding: .4em .8em;
    border-radius: 100px;
}

/* ═══ FOOTER ═══ */
.landing-footer {
    text-align: center;
    padding: 2rem;
    color: var(--gp-gray-400);
    font-size: .78rem;
}

.landing-footer a {
    color: var(--gp-gray-500);
    text-decoration: none;
    margin: 0 .5rem;
}

.landing-footer a:hover { color: var(--gp-blue); }

/* ═══ ANIMATIONS ═══ */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

.anim { animation: fadeUp .5s ease both; }
.anim-d1 { animation-delay: .1s; }
.anim-d2 { animation-delay: .2s; }
.anim-d3 { animation-delay: .3s; }

/* ═══ RESPONSIVE ═══ */
@media (max-width: 768px) {
    .hero { padding: 5rem 1.5rem 2.5rem; }
    .features-grid { grid-template-columns: 1fr; }
    .demo-cards { grid-template-columns: 1fr; }
    .features-section { padding: 2.5rem 1.5rem; }
    .landing-nav { padding: .75rem 1rem; }
    .nav-link-landing { display: none; }
}