/* ===== CSS Variables ===== */
:root {
    --primary: #576A8F;
    --secondary: #B7BDF7;
    --background: #FFF8DE;
    --accent: #FF7444;
    --text-dark: #2C3E50;
    --text-light: #6C757D;
    --white: #FFFFFF;
    --shadow: rgba(87, 106, 143, 0.1);
    --shadow-lg: rgba(87, 106, 143, 0.2);
}

/* ===== Global Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--background);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ===== Navigation Bar ===== */
.navbar {
    background: var(--white);
    box-shadow: 0 2px 10px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link:hover {
    color: var(--accent);
}

.github-icon {
    width: 20px;
    height: 20px;
}

/* Nav Toggle (Mobile) */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    z-index: 1001;
    color: var(--primary);
    transition: all 0.3s ease;
}

.nav-toggle svg {
    width: 30px;
    height: 30px;
}

.nav-toggle .line-top,
.nav-toggle .line-mid,
.nav-toggle .line-bottom {
    transition: all 0.3s ease;
    transform-origin: center;
}

.nav-toggle.active .line-mid {
    opacity: 0;
}

.nav-toggle.active .line-top {
    transform: translateY(6px) rotate(45deg);
}

.nav-toggle.active .line-bottom {
    transform: translateY(-6px) rotate(-45deg);
}

/* ===== Buttons ===== */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #FF8C66);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(255, 116, 68, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 116, 68, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

/* ===== Hero Section ===== */
.hero {
    padding: 6rem 2rem;
    text-align: center;
    background: linear-gradient(135deg, var(--background) 0%, #FFF5E1 100%);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    color: var(--text-dark);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Features Section ===== */
.features {
    padding: 5rem 2rem;
    background: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--background);
    padding: 2rem;
    border-radius: 16px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow-lg);
    border-color: var(--secondary);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.feature-icon svg {
    width: 32px;
    height: 32px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ===== How It Works Section ===== */
.how-it-works {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, var(--background) 0%, #FFF5E1 100%);
}

.steps {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.step {
    background: var(--white);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    max-width: 280px;
    box-shadow: 0 4px 15px var(--shadow);
    transition: all 0.3s ease;
}

.step:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-lg);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent), #FF8C66);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--primary);
}

.step p {
    color: var(--text-light);
    line-height: 1.6;
}

.step-arrow {
    font-size: 2rem;
    color: var(--secondary);
    font-weight: 700;
}

/* ===== CTA Section ===== */
.cta {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    text-align: center;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta h2 {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

/* ===== Footer ===== */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 2rem;
    text-align: center;
}

.footer-content p {
    margin: 0;
    opacity: 0.8;
}

/* ===== Dashboard ===== */
.dashboard {
    padding: 3rem 2rem;
    min-height: calc(100vh - 200px);
}

.dashboard-header {
    margin-bottom: 2rem;
}

.dashboard-header h1 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.info-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 15px var(--shadow);
}

.info-card h2 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.user-info {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--background);
    border-radius: 12px;
}

.user-info h3 {
    color: var(--primary);
    margin-bottom: 1rem;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .container, .nav-container {
        padding: 0 1.5rem;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 15px;
    }

    .container, .nav-container {
        padding: 0 1rem;
    }

    /* Navbar Mobile States */
    .nav-toggle {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        padding: 4rem 2rem;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1000;
        gap: 2rem;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-link {
        font-size: 1.2rem;
        width: 100%;
    }

    .hero {
        padding: 4rem 1rem;
    }

    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .step-arrow {
        display: none;
    }

    .steps {
        flex-direction: column;
        gap: 1.5rem;
    }

    .step {
        max-width: 100%;
        width: 100%;
    }

    .cta h2 {
        font-size: 1.8rem;
    }

    .dashboard-header h1 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .brand-name {
        font-size: 1.2rem;
    }

    .hero-title {
        font-size: 1.8rem;
    }
}