/* ===== CSS VARIABLES ===== */
:root {
    /* Brand Colors */
    --color-green: #4A7C59;
    --color-green-light: #5D9A6E;
    --color-green-dark: #3A6247;
    --color-orange: #F4722B;
    --color-orange-light: #FF8C4B;
    --color-orange-dark: #D45F1F;
    --color-white: #FFFFFF;
    --color-off-white: #F8F9FA;
    --color-gray-light: #E9ECEF;
    --color-gray: #6C757D;
    --color-gray-dark: #343A40;
    --color-black: #1A1A2E;
    
    /* Typography */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 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: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 50px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-glow: 0 0 40px rgba(244, 114, 43, 0.3);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-white);
    color: var(--color-black);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition-normal);
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    border-bottom-color: var(--color-gray-light);
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-green);
    transition: var(--transition-fast);
}

.header-logo:hover {
    color: var(--color-green-light);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-link {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-gray-dark);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-green);
    background: var(--color-off-white);
}

.nav-link-highlight {
    background: var(--color-orange);
    color: var(--color-white) !important;
}

.nav-link-highlight:hover {
    background: var(--color-orange-light) !important;
    transform: translateY(-2px);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-xs);
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background: var(--color-green);
    border-radius: 2px;
    transition: var(--transition-normal);
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(80px + var(--spacing-xl)) var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(180deg, var(--color-off-white) 0%, var(--color-white) 100%);
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 800px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.logo-wrapper {
    margin-bottom: var(--spacing-lg);
}

.hero-logo {
    width: 200px;
    height: 200px;
    margin: 0 auto;
    object-fit: contain;
    border-radius: var(--radius-lg);
    animation: logoEntrance 1s ease-out forwards;
    opacity: 0;
}

@keyframes logoEntrance {
    0% {
        opacity: 0;
        transform: scale(0.8);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.hero-title {
    font-size: clamp(1.8rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--color-gray);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* CTA Button */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-white);
    background: var(--color-orange);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.cta-button:hover {
    background: var(--color-orange-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.cta-button:active {
    transform: translateY(-2px);
}

.cta-icon {
    font-size: 1.4rem;
}

.cta-secondary {
    background: var(--color-green);
}

.cta-secondary:hover {
    background: var(--color-green-light);
    box-shadow: 0 0 40px rgba(74, 124, 89, 0.3);
}

/* Hero Decorations */
.hero-decoration {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.decoration-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.decoration-circle-1 {
    width: 400px;
    height: 400px;
    background: var(--color-green);
    top: -100px;
    right: -100px;
    animation: float 6s ease-in-out infinite;
}

.decoration-circle-2 {
    width: 300px;
    height: 300px;
    background: var(--color-orange);
    bottom: -50px;
    left: -100px;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(20px, 20px);
    }
}

/* ===== BENEFITS SECTION ===== */
.benefits {
    padding: var(--spacing-3xl) var(--spacing-md);
    background: var(--color-white);
}

.benefits-container {
    max-width: 1100px;
    margin: 0 auto;
}

.benefits-title {
    text-align: center;
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-2xl);
}

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

.benefit-card {
    background: var(--color-off-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

.benefit-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-green-light);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: block;
}

.benefit-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
}

.benefit-text {
    font-size: 1rem;
    color: var(--color-gray);
    line-height: 1.7;
}

/* ===== HOW IT WORKS SECTION ===== */
.how-it-works {
    padding: var(--spacing-3xl) var(--spacing-md);
    background: var(--color-green);
    color: var(--color-white);
}

.how-container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.how-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-2xl);
}

.steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--color-white);
    color: var(--color-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    transition: var(--transition-normal);
}

.step:hover .step-number {
    transform: scale(1.1);
    background: var(--color-orange);
    color: var(--color-white);
}

.step-text {
    font-size: 1rem;
    font-weight: 500;
}

.step-arrow {
    font-size: 1.5rem;
    opacity: 0.6;
}

.how-it-works .cta-button {
    background: var(--color-white);
    color: var(--color-green);
}

.how-it-works .cta-button:hover {
    background: var(--color-off-white);
    box-shadow: var(--shadow-lg);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-2xl) var(--spacing-md) var(--spacing-lg);
}

.footer-container {
    max-width: 1100px;
    margin: 0 auto;
}

.footer-top {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-lg);
}

.footer-brand {
    flex: 1;
    min-width: 200px;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-green-light);
}

.footer-tagline {
    margin-top: var(--spacing-xs);
    color: var(--color-gray);
    font-size: 0.9rem;
}

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

.footer-link {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.footer-link:hover {
    background: var(--color-orange);
    transform: translateY(-2px);
}

.footer-legal {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-lg);
}

.footer-legal p {
    font-size: 0.85rem;
    color: var(--color-gray);
    line-height: 1.7;
    text-align: center;
}

.footer-credits {
    text-align: center;
}

.footer-credits p {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-gray-light);
}

.credits-link {
    color: var(--color-orange);
    font-weight: 600;
    transition: var(--transition-fast);
}

.credits-link:hover {
    color: var(--color-orange-light);
    text-decoration: underline;
}

.credits-tagline {
    font-size: 0.8rem !important;
    color: var(--color-gray) !important;
    margin-top: var(--spacing-sm) !important;
}

/* ===== ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
}

.fade-in:nth-child(1) { animation-delay: 0.2s; }
.fade-in:nth-child(2) { animation-delay: 0.4s; }
.fade-in:nth-child(3) { animation-delay: 0.6s; }

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

.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-white);
        padding: calc(80px + var(--spacing-lg)) var(--spacing-lg) var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transition: var(--transition-normal);
    }
    
    .nav.active {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }
    
    .nav-link {
        display: block;
        padding: var(--spacing-sm);
        text-align: center;
        font-size: 1rem;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero {
        min-height: auto;
        padding: calc(80px + var(--spacing-xl)) var(--spacing-md) var(--spacing-2xl);
    }
    
    .hero-logo {
        width: 150px;
        height: 150px;
    }
    
    .cta-button {
        width: 100%;
        justify-content: center;
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .step-arrow {
        display: none;
    }
    
    .steps {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .footer-top {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .header-container {
        padding: var(--spacing-sm);
    }
    
    .benefit-card {
        padding: var(--spacing-lg);
    }
}

/* ===== OVERLAY FOR MOBILE MENU ===== */
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}