/* ========================================
   REFINED DARK MODE & SUBTLE EFFECTS
   ======================================== */

/* Dark Mode Variables */
body.dark-mode {
    --primary: #00E5A0;
    --primary-dark: #00C896;
    --secondary: #E8E8E8;
    --accent: #FFD166;
    --bg-light: #1A1A1A;
    --bg-white: #0F0F0F;
    --text-main: #E8E8E8;
    --text-muted: #A0A0A0;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.3);
    background-color: #0F0F0F;
    color: var(--text-main);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Theme Toggle Button */
.theme-toggle {
    background: rgba(0, 200, 150, 0.1);
    border: 2px solid rgba(0, 200, 150, 0.3);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 20px;
    color: var(--primary);
    font-family: var(--font-main);
}

.theme-toggle:hover {
    background: rgba(0, 200, 150, 0.2);
    border-color: var(--primary);
    transform: rotate(180deg);
}

body.dark-mode .theme-toggle {
    background: rgba(0, 229, 160, 0.15);
    border-color: rgba(0, 229, 160, 0.4);
}

/* Enhanced Floating Cards with Background Images */
.floating-card {
    overflow: hidden;
    position: relative;
    transition: all 0.3s ease;
    cursor: pointer;
}

.floating-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: 0;
    transition: opacity 0.3s ease;
}

.floating-card:hover::before {
    opacity: 0.25;
}

.floating-card>* {
    position: relative;
    z-index: 1;
}

.floating-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

body.dark-mode .floating-card {
    background: rgba(26, 26, 26, 0.9);
    border: 1px solid rgba(0, 229, 160, 0.2);
}

body.dark-mode .floating-card:hover {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.card-1::before {
    background-image: url('leaderboard_trophy_bg.png');
}

.card-2::before {
    background-image: url('eco_recycling_bg.png');
}

/* Stat Cards - Subtle Effects */
.stat-card {
    position: relative;
}

body.dark-mode .stat-card {
    background: rgba(26, 26, 26, 0.6);
    border: 1px solid rgba(0, 229, 160, 0.1);
}

body.dark-mode .stat-card:hover {
    border-color: rgba(0, 229, 160, 0.3);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Feature Cards - Clean Hover */
.feature-card {
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 200, 150, 0.05), transparent);
    transition: left 0.5s ease;
}

.feature-card:hover::before {
    left: 100%;
}

body.dark-mode .feature-card {
    background: rgba(26, 26, 26, 0.6);
    border: 1px solid rgba(0, 229, 160, 0.1);
}

body.dark-mode .feature-card:hover {
    background: rgba(26, 26, 26, 0.9);
    border-color: rgba(0, 229, 160, 0.3);
}

/* Step Cards - Reduced Animation */
.step-card {
    position: relative;
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: translateY(-5px);
}

.step-number {
    position: relative;
    box-shadow: 0 2px 8px rgba(255, 209, 102, 0.2);
    transition: all 0.3s ease;
}

.step-card:hover .step-number {
    transform: scale(1.1) rotate(360deg);
    box-shadow: 0 4px 12px rgba(255, 209, 102, 0.3);
}

.step-icon {
    transition: all 0.3s ease;
}

.step-card:hover .step-icon {
    transform: scale(1.05);
}

/* Testimonial Cards - Subtle Shadow */
.testimonial-card {
    position: relative;
    transition: all 0.3s ease;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 80px;
    color: var(--primary);
    opacity: 0.1;
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
}

body.dark-mode .testimonial-card {
    background: rgba(26, 26, 26, 0.6);
    border: 1px solid rgba(0, 229, 160, 0.1);
}

body.dark-mode .testimonial-card:hover {
    border-color: rgba(0, 229, 160, 0.3);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

/* FAQ Items - Minimal Shadow */
.faq-item {
    position: relative;
    transition: all 0.3s ease;
}

.faq-item:hover {
    transform: translateX(3px);
}

.faq-item.active {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

body.dark-mode .faq-item {
    background: rgba(26, 26, 26, 0.6);
    border: 1px solid rgba(0, 229, 160, 0.1);
}

body.dark-mode .faq-item.active {
    border-color: rgba(0, 229, 160, 0.3);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Newsletter Section */
body.dark-mode .newsletter-container {
    background: linear-gradient(135deg, #1A1A1A 0%, #0F0F0F 100%);
    border: 1px solid rgba(0, 229, 160, 0.2);
}

.newsletter-form input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 200, 150, 0.2);
}

/* Hero Section Dark Mode */
body.dark-mode .hero {
    background: radial-gradient(circle at top right, rgba(0, 229, 160, 0.1), transparent 40%),
        radial-gradient(circle at bottom left, rgba(255, 209, 102, 0.1), transparent 40%);
}

body.dark-mode .badge {
    background-color: rgba(0, 229, 160, 0.15);
    color: var(--primary);
}

/* Phone Mockup - Subtle Glow */
.phone-mockup {
    position: relative;
}

.phone-mockup::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(0, 200, 150, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: -1;
}

.phone-mockup:hover::after {
    opacity: 0.2;
}

/* Dark Mode for All Sections */
body.dark-mode .features,
body.dark-mode .live-impact,
body.dark-mode .testimonials {
    background: #0F0F0F;
}

body.dark-mode .how-it-works {
    background: radial-gradient(circle at center, rgba(0, 229, 160, 0.05), transparent 70%);
}

body.dark-mode .faq {
    background: #1A1A1A;
}

body.dark-mode .icon-box {
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid rgba(0, 229, 160, 0.2);
}

body.dark-mode .detail-visual {
    background: rgba(26, 26, 26, 0.4);
}

/* Footer Dark Mode */
body.dark-mode .footer {
    background: #0A0A0A;
    border-top: 1px solid rgba(0, 229, 160, 0.1);
}

/* Contact Form Dark Mode */
body.dark-mode .contact-form {
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid rgba(0, 229, 160, 0.1);
}

body.dark-mode .form-group input,
body.dark-mode .form-group textarea {
    background: rgba(15, 15, 15, 0.6);
    border-color: rgba(0, 229, 160, 0.2);
    color: var(--text-main);
}

body.dark-mode .form-group input:focus,
body.dark-mode .form-group textarea:focus {
    border-color: var(--primary);
    background: rgba(15, 15, 15, 0.8);
}

/* Navbar Dark Mode */
body.dark-mode .navbar {
    background: rgba(15, 15, 15, 0.95);
    backdrop-filter: blur(10px);
}

body.dark-mode .logo {
    color: var(--text-main);
}

body.dark-mode .nav-links a {
    color: var(--text-main);
}

body.dark-mode .nav-links a:hover {
    color: var(--primary);
}

/* Mobile Dark Mode */
@media (max-width: 768px) {
    body.dark-mode .nav-links {
        background: rgba(15, 15, 15, 0.98);
    }
}

/* Smooth Transitions */
.features,
.live-impact,
.how-it-works,
.testimonials,
.faq,
.newsletter,
.hero,
.icon-box,
.detail-visual,
.navbar,
.footer {
    transition: background-color 0.3s ease, background 0.3s ease;
}

/* Form Success Message */
.form-success {
    background: rgba(0, 200, 150, 0.1);
    border: 2px solid var(--primary);
    border-radius: 12px;
    padding: 20px;
    margin-top: 20px;
    text-align: center;
    color: var(--primary);
    font-weight: 600;
    display: none;
}

.form-success.show {
    display: block;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

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

body.dark-mode .form-success {
    background: rgba(0, 229, 160, 0.15);
    border-color: var(--primary);
}