:root {
    --bg-color: #f8fafc;
    --text-color: #1e293b;
    --card-bg: #ffffff;
    --nav-bg: rgba(255, 255, 255, 0.9);
    --border-color: #e2e8f0;
    --brand-color: #16a34a;
    --brand-hover: #15803d;
    --text-muted: #64748b;
}
.dark {
    --bg-color: #020617;
    --text-color: #f8fafc;
    --card-bg: #0f172a;
    --nav-bg: rgba(15, 23, 42, 0.9);
    --border-color: #1e293b;
    --brand-color: #22c55e;
    --brand-hover: #16a34a;
    --text-muted: #94a3b8;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', sans-serif;
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}
body {
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--nav-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo-box {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}
.logo-icon {
    width: 44px;
    height: 44px;
    background-color: var(--brand-color);
    color: white;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 10px 15px -3px rgba(22, 163, 74, 0.3);
}
.logo-text h2 {
    font-size: 22px;
    font-weight: 800;
    line-height: 1.1;
}
.logo-text h2 span {
    color: var(--brand-color);
}
.logo-text span {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    font-weight: 600;
}
.nav-links {
    display: flex;
    gap: 25px;
    align-items: center;
}
.nav-links button {
    background: none;
    border: none;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
}
.nav-links button.active, .nav-links button:hover {
    color: var(--brand-color);
}
.nav-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}
.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background-color: var(--border-color);
    border: none;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 12px;
}
main {
    flex-grow: 1;
    padding-top: 80px;
}
.page-view {
    display: none;
    padding: 40px 20px;
    max-width: 1200px;
    margin: 0 auto;
}
.page-view:not(.hidden) {
    display: block;
}
.hidden {
    display: none !important;
}
.hero {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
    padding: 40px 0;
    text-align: center;
}
@media (min-width: 768px) {
    .hero {
        grid-template-columns: 1.2fr 0.8fr;
        text-align: left;
    }
}
.hero h1 {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}
.hero h1 span {
    color: var(--brand-color);
}
.hero p {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 30px;
    line-height: 1.6;
}
.btn-primary {
    background-color: var(--brand-color);
    color: white;
    border: none;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 700;
    border-radius: 14px;
    cursor: pointer;
    box-shadow: 0 10px 20px -5px rgba(22, 163, 74, 0.4);
}
.btn-primary:hover {
    background-color: var(--brand-hover);
}
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
}