:root {
    --blue-900: #0a1628;
    --blue-700: #152d4e;
    --blue-600: #1a3d66;
    --blue-500: #1e4d7a;
    --blue-400: #2a6fa8;
    --blue-200: #7ab0d8;
    --orange-500: #f59e0b;
    --orange-400: #fbbf24;
    --orange-300: #fcd34d;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --white: #ffffff;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);
    --shadow-xl: 0 20px 25px rgba(0,0,0,.1), 0 10px 10px rgba(0,0,0,.04);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    -webkit-font-smoothing: antialiased;
}

.app { display: flex; flex-direction: column; min-height: 100vh; }

.header {
    background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-600) 100%);
    color: var(--white);
    padding: 1rem 1.5rem;
    box-shadow: 0 2px 20px rgba(0,0,0,.3);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-logo { display: flex; align-items: center; gap: .75rem; }
.header-logo i { font-size: 1.8rem; color: var(--orange-400); }
.header-logo h1 { font-size: 1.15rem; font-weight: 700; line-height: 1.2; }
.header-logo span { font-size: .7rem; color: var(--blue-200); }

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    color: var(--blue-200);
    text-decoration: none;
    font-size: .85rem;
    font-weight: 500;
    padding: .5rem 1rem;
    border-radius: 100px;
    transition: all .3s ease;
    border: 1px solid rgba(255,255,255,.1);
}
.back-btn:hover { background: rgba(255,255,255,.1); color: var(--white); }

.main { flex: 1; }

.hero-small {
    background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 50%, var(--blue-600) 100%);
    text-align: center;
    padding: 3rem 1.5rem;
}

.hero-content { max-width: 650px; margin: 0 auto; }
.tag {
    display: inline-block;
    background: var(--orange-400);
    color: var(--blue-900);
    padding: .25rem 1rem;
    border-radius: 100px;
    font-size: .8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}
.hero-content h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: .75rem;
}
.hero-content h2 span {
    background: linear-gradient(135deg, var(--orange-300), var(--orange-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-content p { color: var(--blue-200); font-size: 1rem; line-height: 1.7; }

.section { padding: 4rem 0; }
.section-gray { background: var(--white); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

.section-header { text-align: center; margin-bottom: 3rem; }
.section-tag {
    display: inline-block;
    background: var(--orange-100);
    color: var(--orange-500);
    padding: .25rem 1rem;
    border-radius: 100px;
    font-size: .8rem;
    font-weight: 600;
    margin-bottom: .75rem;
}
.section-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--blue-900);
    margin-bottom: .75rem;
}
.section-desc { color: var(--gray-500); font-size: 1rem; max-width: 600px; margin: 0 auto; line-height: 1.6; }

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.about-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow);
    transition: all .3s ease;
}
.about-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--blue-200); }

.about-icon {
    width: 56px; height: 56px;
    background: linear-gradient(135deg, var(--blue-500), var(--blue-400));
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.4rem;
    color: var(--white);
}
.about-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--blue-900); margin-bottom: .5rem; }
.about-card p { font-size: .85rem; color: var(--gray-500); line-height: 1.6; }

.channels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.channel-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow);
    transition: all .3s ease;
    display: flex;
    flex-direction: column;
}
.channel-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-xl); }

.channel-card i { font-size: 2rem; margin-bottom: 1rem; }
.channel-card.telegram i { color: #0088cc; }
.channel-card.linkedin i { color: #0077b5; }
.channel-card.whatsapp i { color: #25d366; }

.channel-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--blue-900); margin-bottom: .4rem; }
.channel-card p { font-size: .85rem; color: var(--gray-500); line-height: 1.6; flex: 1; margin-bottom: 1rem; }
.channel-link { font-size: .85rem; font-weight: 600; color: var(--blue-400); display: inline-flex; align-items: center; gap: .3rem; }
.channel-card:hover .channel-link { gap: .6rem; }

.pix-card {
    max-width: 480px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    text-align: center;
    border: 2px dashed var(--orange-300);
    box-shadow: var(--shadow-lg);
}

.pix-header i {
    font-size: 3rem;
    color: var(--orange-400);
    margin-bottom: 1rem;
}
.pix-header h3 { font-size: 1.3rem; font-weight: 700; color: var(--blue-900); margin-bottom: 1.5rem; }

.pix-key {
    font-family: 'Courier New', monospace;
    font-size: .95rem;
    background: var(--gray-100);
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    word-break: break-all;
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
    margin-bottom: 1.25rem;
}

.pix-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    width: 100%;
    padding: .9rem 1.5rem;
    background: linear-gradient(135deg, var(--blue-500), var(--blue-400));
    color: white;
    border: none;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all .3s ease;
    font-family: inherit;
}
.pix-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(30,77,122,.3); }
.pix-btn.copied { background: linear-gradient(135deg, #16a34a, #22c55e); }

.pix-note { font-size: .8rem; color: var(--gray-400); margin-top: 1rem; }

.values-list {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.value-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--gray-50);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    border: 1px solid var(--gray-200);
    transition: all .3s ease;
}
.value-item:hover { border-color: var(--blue-200); box-shadow: var(--shadow); }

.value-pct {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--orange-500);
    min-width: 70px;
}

.value-info h4 { font-size: 1rem; font-weight: 700; color: var(--blue-900); margin-bottom: .2rem; }
.value-info p { font-size: .85rem; color: var(--gray-500); }

.footer {
    text-align: center;
    color: var(--gray-400);
    padding: 2rem;
    font-size: .85rem;
    border-top: 1px solid var(--gray-200);
}

@media (max-width: 768px) {
    .hero-small { padding: 2rem 1rem; }
    .hero-content h2 { font-size: 1.5rem; }
    .section { padding: 2.5rem 0; }
    .container { padding: 0 1rem; }
    .section-title { font-size: 1.4rem; }
    .about-grid { grid-template-columns: 1fr; }
    .channels-grid { grid-template-columns: 1fr; }
    .pix-card { padding: 1.5rem; }
    .back-btn span { display: none; }
}