/* ===================================
   CSS RESET & BASE STYLES
   =================================== */

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

:root {
    /* Color Palette - Clean & Light */
    --color-primary: hsl(142, 71%, 45%);
    --color-primary-light: hsl(142, 71%, 55%);
    --color-primary-dark: hsl(142, 71%, 35%);
    --color-secondary: hsl(262, 73%, 68%);
    --color-accent: hsl(31, 90%, 65%);

    /* Neutral Colors - Light Theme */
    --color-bg-primary: hsl(0, 0%, 98%);
    --color-bg-secondary: hsl(140, 30%, 97%);
    --color-bg-tertiary: hsl(140, 25%, 95%);
    --color-surface: hsl(0, 0%, 100%);
    --color-surface-hover: hsl(140, 30%, 96%);

    /* Text Colors - Dark on Light */
    --color-text-primary: hsl(220, 26%, 14%);
    --color-text-secondary: hsl(220, 15%, 35%);
    --color-text-muted: hsl(220, 10%, 55%);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
    --gradient-surface: linear-gradient(135deg, hsl(140, 40%, 98%) 0%, hsl(200, 40%, 98%) 100%);

    /* Shadows - Softer for Light Theme */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 24px rgba(34, 197, 94, 0.2);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Layout */
    --header-height: 80px;
    --max-width: 1400px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===================================
   UNIVERSAL HEADER
   =================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    z-index: 1000;
    transition: all var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-lg);
    background: rgba(255, 255, 255, 0.95);
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
}

.header-logo {
    flex-shrink: 0;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-text-primary);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    transition: transform var(--transition-base);
}

.logo-link:hover {
    transform: scale(1.05);
}

.logo-icon {
    font-size: 2rem;
    filter: drop-shadow(0 0 8px rgba(34, 197, 94, 0.5));
}

.logo-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation */
.header-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
}

.nav-link {
    display: block;
    padding: var(--spacing-xs) var(--spacing-md);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: transform var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text-primary);
    background: rgba(34, 197, 94, 0.08);
}

.nav-link:hover::before,
.nav-link.active::before {
    transform: translateX(-50%) scaleX(1);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-icon:hover {
    background: rgba(34, 197, 94, 0.1);
    color: var(--color-text-primary);
    transform: scale(1.1);
}

.btn-primary {
    padding: 0.75rem 1.5rem;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

/* ===================================
   MAIN CONTENT
   =================================== */

.main-content {
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
}

/* Hero Section */
.hero-section {
    min-height: calc(100vh - var(--header-height));
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--spacing-3xl);
    padding: var(--spacing-3xl) var(--spacing-lg);
    max-width: var(--max-width);
    margin: 0 auto;
    position: relative;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.5;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.hero-content {
    z-index: 1;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-large.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 16px rgba(34, 197, 94, 0.3);
}

.btn-large.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(34, 197, 94, 0.4);
}

.btn-large.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text-primary);
    border: 2px solid rgba(34, 197, 94, 0.3);
}

.btn-large.btn-secondary:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-primary);
    transform: translateY(-3px);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 500px;
    z-index: 1;
}

.floating-card {
    position: absolute;
    background: var(--color-surface);
    border: 1px solid rgba(34, 197, 94, 0.2);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-base);
}

.floating-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.card-1 {
    top: 10%;
    left: 10%;
    animation: float 6s ease-in-out infinite;
}

.card-2 {
    top: 40%;
    right: 10%;
    animation: float 6s ease-in-out 2s infinite;
}

.card-3 {
    bottom: 10%;
    left: 20%;
    animation: float 6s ease-in-out 4s infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

.card-icon {
    font-size: 2.5rem;
    filter: drop-shadow(0 0 8px rgba(34, 197, 94, 0.5));
}

.card-text {
    font-weight: 600;
    font-size: 1.1rem;
}

/* Features Section */
.features-section {
    padding: var(--spacing-3xl) var(--spacing-lg);
    background: var(--color-bg-secondary);
}

.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--color-surface);
    border: 1px solid rgba(34, 197, 94, 0.15);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    cursor: pointer;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-light);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    filter: drop-shadow(0 0 12px rgba(34, 197, 94, 0.4));
}

.feature-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===================================
   UNIVERSAL FOOTER
   =================================== */

.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid rgba(34, 197, 94, 0.15);
    padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-lg);
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.footer-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 1px solid rgba(34, 197, 94, 0.2);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.footer-heading {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-base);
    display: inline-block;
}

.footer-link:hover {
    color: var(--color-primary-light);
    transform: translateX(5px);
}

.footer-contact {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.contact-item svg {
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--color-primary);
}

/* Footer Bottom */
.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(34, 197, 94, 0.15);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.copyright {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-bottom-link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-base);
}

.footer-bottom-link:hover {
    color: var(--color-primary-light);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 1024px) {
    .hero-section {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }

    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-visual {
        height: 400px;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        padding: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        border-bottom: 1px solid rgba(34, 197, 94, 0.15);
        z-index: 999;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        max-height: calc(100vh - var(--header-height));
        overflow-y: auto;
    }

    .header-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .nav-link {
        padding: var(--spacing-md);
        font-size: 1rem;
        width: 100%;
        text-align: left;
    }

    .mobile-menu-toggle {
        display: flex;
        z-index: 1001;
        position: relative;
    }

    .mobile-menu-toggle.active .hamburger-line:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }

    .mobile-menu-toggle.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active .hamburger-line:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .btn-primary {
        display: none;
    }

    .hero-actions {
        justify-content: center;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --header-height: 70px;
    }

    .header-container {
        padding: 0 var(--spacing-md);
    }

    .logo-text {
        font-size: 1.25rem;
    }

    .hero-section {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .hero-visual {
        height: 300px;
    }

    .floating-card {
        padding: var(--spacing-md);
        font-size: 0.9rem;
    }

    .card-icon {
        font-size: 2rem;
    }

    .features-section {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
}