/* ==========================================
   2MERGE - CSS STYLESHEET
   Red & Black Theme with Modern Animations
   ========================================== */

/* ==========================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ========================================== */
:root {
    /* Color Palette - Unique Teal/Turquoise Theme */
    --primary-teal: #14B8A6;
    --primary-teal-light: #2DD4BF;
    --primary-teal-dark: #0D9488;
    --accent-cyan: #06B6D4;
    --accent-emerald: #10B981;
    --accent-sky: #0EA5E9;
    --black: #000000;
    --black-light: #1F1F1F;
    --black-lighter: #2D2D2D;
    --gray-dark: #0A0A0A;
    --gray: #6B7280;
    --gray-light: #9CA3AF;
    --white: #FFFFFF;
    --white-off: #F9FAFB;
    
    /* Gradient Colors - Unique Teal/Turquoise Gradients */
    --gradient-primary: linear-gradient(135deg, #14B8A6 0%, #06B6D4 50%, #0EA5E9 100%);
    --gradient-secondary: linear-gradient(135deg, #2DD4BF 0%, #14B8A6 100%);
    --gradient-dark: linear-gradient(135deg, #1F1F1F 0%, #000000 100%);
    --gradient-mixed: linear-gradient(135deg, #14B8A6 0%, #0EA5E9 50%, #1F1F1F 100%);
    --gradient-overlay: linear-gradient(180deg, rgba(0,0,0,0.7) 0%, rgba(20,184,166,0.3) 100%);
    --gradient-shine: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.3) 50%, transparent 70%);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-teal: 0 10px 30px -5px rgba(20, 184, 166, 0.5);
    --shadow-cyan: 0 10px 30px -5px rgba(6, 182, 212, 0.5);
    --shadow-glow: 0 0 40px rgba(20, 184, 166, 0.4);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Z-Index Layers */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-tooltip: 1070;
}

/* ==========================================
   GLOBAL RESET & BASE STYLES
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-regular);
    line-height: 1.6;
    color: var(--black-light);
    background-color: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    color: var(--black);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 3rem; font-weight: var(--font-weight-extrabold); }
h2 { font-size: 2.25rem; font-weight: var(--font-weight-bold); }
h3 { font-size: 1.875rem; font-weight: var(--font-weight-bold); }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--gray);
    line-height: 1.8;
}

a {
    color: var(--primary-teal);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-teal-light);
}

strong {
    font-weight: var(--font-weight-semibold);
    color: var(--black);
}

/* ==========================================
   CONTAINER & LAYOUT
   ========================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ==========================================
   NAVIGATION BAR - UNIQUE GLASSMORPHISM DESIGN
   ========================================== */
.navbar {
    background: linear-gradient(135deg, 
        rgba(20, 184, 166, 0.95) 0%,
        rgba(6, 182, 212, 0.9) 35%,
        rgba(59, 130, 246, 0.85) 70%,
        rgba(99, 102, 241, 0.8) 100%);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    box-shadow: 0 8px 32px 0 rgba(20, 184, 166, 0.35),
                0 2px 8px 0 rgba(6, 182, 212, 0.2),
                inset 0 1px 0 0 rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    animation: slideDown 0.5s ease-out, headerGlow 3s ease-in-out infinite alternate;
}

@keyframes headerGlow {
    0% {
        box-shadow: 0 8px 32px 0 rgba(20, 184, 166, 0.35),
                    0 2px 8px 0 rgba(6, 182, 212, 0.2),
                    inset 0 1px 0 0 rgba(255, 255, 255, 0.1);
    }
    100% {
        box-shadow: 0 8px 40px 0 rgba(20, 184, 166, 0.5),
                    0 4px 16px 0 rgba(6, 182, 212, 0.35),
                    inset 0 1px 0 0 rgba(255, 255, 255, 0.2);
    }
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.75rem;
    font-weight: var(--font-weight-extrabold);
    text-decoration: none;
    transition: all var(--transition-normal);
    filter: drop-shadow(0 4px 12px rgba(255, 255, 255, 0.3));
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo:hover {
    transform: scale(1.08) translateY(-2px);
    filter: drop-shadow(0 8px 20px rgba(255, 255, 255, 0.5));
}

.logo img {
    height: 45px;
    width: auto;
    filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.6));
    animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-5px);
    }
}

.logo-2 {
    color: var(--white);
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.8),
                 0 0 40px rgba(20, 184, 166, 0.5),
                 0 2px 4px rgba(0, 0, 0, 0.3);
}

.logo-merge {
    color: rgba(255, 255, 255, 0.95);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: rgba(255, 255, 255, 0.95);
    font-weight: var(--font-weight-semibold);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    position: relative;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(5px);
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    opacity: 0;
    transition: all var(--transition-fast);
    z-index: -1;
}

.nav-link:hover::before {
    opacity: 1;
    background: rgba(255, 255, 255, 0.2);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--white), transparent);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
    border-radius: var(--radius-full);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 90%;
}

.nav-link:hover {
    color: var(--white);
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.9),
                 0 2px 4px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}

.nav-link.active {
    color: var(--white);
    background: rgba(255, 255, 255, 0.15);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
}

.btn-primary-nav {
    background: var(--gradient-primary);
    color: var(--white) !important;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-teal);
}

.btn-primary-nav::after {
    display: none;
}

.btn-primary-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px -7px rgba(20, 184, 166, 0.7);
}

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

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--white);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    position: relative;
    background: var(--gradient-mixed);
    padding: var(--spacing-2xl) 0;
    overflow: hidden;
    color: var(--white);
}

.hero-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(20, 184, 166, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(14, 165, 233, 0.2) 0%, transparent 50%);
    pointer-events: none;
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: var(--font-weight-black);
    color: var(--white);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.trust-badges {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-normal);
}

.badge:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.badge i {
    color: var(--primary-teal-light);
    font-size: 1.2rem;
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    text-decoration: none;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-teal);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px -10px rgba(20, 184, 166, 0.7);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-teal);
    border: 2px solid var(--primary-teal);
}

.btn-secondary:hover {
    background: var(--primary-teal);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-teal);
}

.btn-secondary-small {
    background: transparent;
    color: var(--gray);
    border: 1px solid var(--gray-light);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-secondary-small:hover {
    background: var(--primary-teal);
    color: var(--white);
    border-color: var(--primary-teal);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ==========================================
   SECTIONS
   ========================================== */
section {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    animation: fadeIn 1s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.section-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--black);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
}

/* ==========================================
   FEATURES SECTION
   ========================================== */
.features {
    background: var(--white-off);
}

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

.feature-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    animation: slideUp 0.6s ease-out;
    animation-fill-mode: both;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-teal);
    transition: all var(--transition-normal);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-icon i {
    font-size: 2rem;
    color: var(--white);
}

.feature-title {
    font-size: 1.5rem;
    color: var(--black);
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    color: var(--gray);
    line-height: 1.8;
}

/* ==========================================
   HOW IT WORKS SECTION
   ========================================== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.step-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    position: relative;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.step-card:hover {
    border-color: var(--primary-teal);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--white);
    box-shadow: var(--shadow-teal);
}

.step-icon {
    width: 80px;
    height: 80px;
    background: var(--white-off);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--spacing-md) 0;
}

.step-icon i {
    font-size: 2.5rem;
    color: var(--primary-teal);
}

.step-title {
    font-size: 1.375rem;
    color: var(--black);
    margin-bottom: var(--spacing-sm);
}

.step-description {
    color: var(--gray);
    line-height: 1.8;
}

/* ==========================================
   SEO CONTENT SECTION
   ========================================== */
.seo-content {
    background: var(--white-off);
}

.content-box {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    max-width: 900px;
    margin: 0 auto;
}

.content-box h2 {
    color: var(--black);
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid var(--primary-teal);
}

.content-box p {
    margin-bottom: var(--spacing-md);
    line-height: 1.9;
}

/* ==========================================
   CTA SECTION
   ========================================== */
.cta-section {
    background: var(--gradient-mixed);
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 50%, rgba(20, 184, 166, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(14, 165, 233, 0.2) 0%, transparent 50%);
    animation: pulse 6s ease-in-out infinite;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.cta-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    background: var(--gradient-dark);
    color: var(--white);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-column h3 {
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    font-size: 2rem;
    font-weight: var(--font-weight-extrabold);
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    color: var(--gray-light);
    margin-bottom: var(--spacing-md);
}

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

.social-icons a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.social-icons a:hover {
    background: var(--gradient-primary);
    transform: translateY(-3px) rotate(5deg);
}

.social-icons i {
    color: var(--white);
    font-size: 1.125rem;
}

.footer-heading {
    font-size: 1.125rem;
    color: var(--white);
    font-weight: var(--font-weight-semibold);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--gray-light);
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-teal-light);
    padding-left: var(--spacing-xs);
}

.footer-text {
    color: var(--gray-light);
    line-height: 1.8;
    font-size: 0.9375rem;
}

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

.copyright,
.footer-love {
    color: var(--gray-light);
    font-size: 0.875rem;
}

.heart {
    color: var(--primary-teal);
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* ==========================================
   PAGE HEADER
   ========================================== */
.page-header {
    background: var(--gradient-mixed);
    color: var(--white);
    padding: var(--spacing-2xl) 0 var(--spacing-xl);
    text-align: center;
}

.page-header h1 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
}

/* ==========================================
   PAGE CONTENT
   ========================================== */
.page-content {
    padding: var(--spacing-2xl) 0;
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.content-section {
    margin-bottom: var(--spacing-xl);
}

.content-section h2 {
    font-size: 2rem;
    color: var(--black);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid var(--primary-teal);
}

.content-section h3 {
    font-size: 1.5rem;
    color: var(--black);
    margin-bottom: var(--spacing-sm);
}

.content-section p {
    margin-bottom: var(--spacing-md);
    line-height: 1.9;
}

.content-section ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.content-section li {
    margin-bottom: var(--spacing-xs);
    color: var(--gray);
    line-height: 1.8;
}

/* ==========================================
   TOOL PAGE STYLES
   ========================================== */
.tool-header {
    background: var(--gradient-mixed);
    color: var(--white);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.tool-main-title {
    font-size: 4rem;
    color: var(--white);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.tool-intro {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.9;
}

.tool-interface {
    padding: var(--spacing-2xl) 0;
    background: var(--white-off);
}

.tool-box {
    background: var(--white);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.upload-area {
    border: 3px dashed var(--gray-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--primary-teal);
    background: rgba(20, 184, 166, 0.02);
}

.upload-area.drag-over {
    border-color: var(--primary-teal);
    background: rgba(20, 184, 166, 0.05);
    transform: scale(1.02);
}

.upload-icon {
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    box-shadow: var(--shadow-teal);
}

.upload-icon i {
    font-size: 3rem;
    color: var(--white);
}

.upload-title {
    font-size: 1.75rem;
    color: var(--black);
    margin-bottom: var(--spacing-xs);
}

.upload-subtitle {
    color: var(--gray);
    margin-bottom: var(--spacing-md);
}

.upload-note {
    color: var(--gray-light);
    font-size: 0.875rem;
    margin-top: var(--spacing-md);
}

.files-container {
    animation: fadeIn 0.5s ease-out;
}

.files-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--white-off);
}

.files-list {
    margin-bottom: var(--spacing-lg);
    max-height: 400px;
    overflow-y: auto;
}

.file-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--white-off);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-sm);
    transition: all var(--transition-normal);
    cursor: move;
}

.file-item:hover {
    background: rgba(20, 184, 166, 0.05);
    transform: translateX(5px);
}

.file-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.file-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.file-info {
    flex: 1;
}

.file-name {
    font-weight: var(--font-weight-semibold);
    color: var(--black);
    margin-bottom: 2px;
}

.file-size {
    font-size: 0.875rem;
    color: var(--gray);
}

.file-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.file-action-btn {
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--gray-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.file-action-btn:hover {
    background: var(--primary-teal);
    border-color: var(--primary-teal);
    color: var(--white);
}

.merge-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.result-container {
    text-align: center;
    animation: fadeIn 0.5s ease-out;
}

.result-success {
    padding: var(--spacing-xl);
}

.result-success i {
    font-size: 5rem;
    color: #10B981;
    margin-bottom: var(--spacing-md);
    animation: checkmark 0.6s ease-out;
}

@keyframes checkmark {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.result-success h3 {
    font-size: 1.875rem;
    color: var(--black);
    margin-bottom: var(--spacing-sm);
}

.result-success p {
    color: var(--gray);
    margin-bottom: var(--spacing-lg);
}

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-2xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.loader {
    width: 60px;
    height: 60px;
    border: 5px solid var(--white-off);
    border-top: 5px solid var(--primary-teal);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-md);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-overlay p {
    color: var(--black);
    font-weight: var(--font-weight-semibold);
    font-size: 1.125rem;
}

.tool-content {
    background: var(--white);
}

.steps-list {
    margin-top: var(--spacing-md);
}

.step-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--white-off);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-teal);
}

.step-badge {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-semibold);
    font-size: 0.875rem;
    white-space: nowrap;
}

.step-item p {
    margin: 0;
    color: var(--gray);
    line-height: 1.8;
}

/* FAQs Section */
.faqs-section {
    background: var(--white-off);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
}

.faq-item {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-light);
}

.faq-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.faq-question {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.faq-question i {
    color: var(--primary-teal);
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 3px;
}

.faq-question h3 {
    color: var(--black);
    font-size: 1.25rem;
    margin: 0;
}

.faq-answer p {
    margin: 0;
    padding-left: calc(1.5rem + var(--spacing-sm));
    color: var(--gray);
    line-height: 1.8;
}

/* ==========================================
   VALUES GRID (ABOUT PAGE)
   ========================================== */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.value-card {
    background: var(--white-off);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-normal);
}

.value-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.value-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    box-shadow: var(--shadow-teal);
}

.value-icon i {
    font-size: 2rem;
    color: var(--white);
}

.value-card h3 {
    font-size: 1.25rem;
    color: var(--black);
    margin-bottom: var(--spacing-sm);
}

.value-card p {
    color: var(--gray);
    font-size: 0.9375rem;
    line-height: 1.8;
}

.cta-box {
    background: var(--gradient-mixed);
    color: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    margin-top: var(--spacing-xl);
}

.cta-box h3 {
    color: var(--white);
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.cta-box p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

/* ==========================================
   CONTACT PAGE STYLES
   ========================================== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.contact-info h2 {
    color: var(--black);
    margin-bottom: var(--spacing-md);
}

.contact-details {
    margin: var(--spacing-lg) 0;
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-teal);
}

.contact-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.contact-text h3 {
    font-size: 1.125rem;
    color: var(--black);
    margin-bottom: 0.25rem;
}

.contact-text p {
    color: var(--gray);
    margin: 0;
    line-height: 1.6;
}

.contact-text a {
    color: var(--primary-teal);
    font-weight: var(--font-weight-medium);
}

.social-contact {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--white-off);
}

.social-contact h3 {
    color: var(--black);
    margin-bottom: var(--spacing-xs);
}

.social-contact p {
    color: var(--gray);
    margin-bottom: var(--spacing-md);
}

.social-icons-large {
    display: flex;
    gap: var(--spacing-md);
}

.social-icons-large a {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-teal);
}

.social-icons-large a:hover {
    transform: translateY(-5px) rotate(5deg);
    box-shadow: 0 15px 40px -10px rgba(20, 184, 166, 0.7);
}

.social-icons-large i {
    color: var(--white);
    font-size: 1.25rem;
}

.contact-form-container {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

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

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: var(--font-weight-semibold);
    color: var(--black);
    margin-bottom: var(--spacing-xs);
}

.required {
    color: var(--primary-teal);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem;
    border: 2px solid var(--gray-light);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-teal);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-message {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    animation: fadeIn 0.5s ease-out;
}

.success-message {
    background: #D1FAE5;
    border: 2px solid #10B981;
}

.success-message i {
    font-size: 3rem;
    color: #10B981;
    margin-bottom: var(--spacing-sm);
}

.success-message h3 {
    color: #065F46;
    margin-bottom: var(--spacing-xs);
}

.success-message p {
    color: #047857;
    margin: 0;
}

.error-message {
    background: #FEE2E2;
    border: 2px solid #EF4444;
}

.error-message i {
    font-size: 3rem;
    color: #EF4444;
    margin-bottom: var(--spacing-sm);
}

.error-message h3 {
    color: #991B1B;
    margin-bottom: var(--spacing-xs);
}

.error-message p {
    color: #DC2626;
    margin: 0;
}

.faq-section h2 {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.faq-section > p {
    text-align: center;
    color: var(--gray);
    margin-bottom: var(--spacing-lg);
}

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

.faq-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.faq-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.faq-card h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--black);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.faq-card h3 i {
    color: var(--primary-teal);
}

.faq-card p {
    color: var(--gray);
    line-height: 1.8;
    margin: 0;
}

/* ==========================================
   LEGAL CONTENT
   ========================================== */
.legal-content {
    background: var(--white-off);
}

.legal-intro {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    border-left: 5px solid var(--primary-teal);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.legal-intro p {
    margin: 0;
    font-size: 1.0625rem;
    line-height: 1.9;
}

.legal-footer {
    background: var(--gradient-mixed);
    color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    text-align: center;
    margin-top: var(--spacing-xl);
}

.legal-footer p {
    margin: 0;
    color: var(--white);
    font-size: 1.0625rem;
    line-height: 1.8;
}

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

/* Tablet (768px and below) */
@media (max-width: 768px) {
    /* Typography */
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.875rem; }
    h3 { font-size: 1.5rem; }
    
    .hero-title { font-size: 2.5rem; }
    .tool-main-title { font-size: 3rem; }
    .section-title { font-size: 2rem; }
    
    /* Navigation */
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--gradient-dark);
        flex-direction: column;
        padding: var(--spacing-lg);
        transition: left var(--transition-normal);
        z-index: var(--z-fixed);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        width: 100%;
        padding: var(--spacing-md);
        text-align: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    /* Hero */
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .trust-badges {
        flex-direction: column;
        align-items: center;
    }
    
    /* Grids */
    .features-grid,
    .steps-grid,
    .values-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    /* Contact */
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    /* Tool Interface */
    .merge-actions {
        flex-direction: column;
    }
    
    .file-item {
        flex-direction: column;
        text-align: center;
    }
}

/* Mobile (480px and below) */
@media (max-width: 480px) {
    /* Container */
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    /* Typography */
    h1 { font-size: 1.875rem; }
    .hero-title { font-size: 2rem; }
    .tool-main-title { font-size: 2.25rem; }
    
    /* Spacing */
    section {
        padding: var(--spacing-xl) 0;
    }
    
    /* Buttons */
    .btn-large {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    /* Tool Box */
    .tool-box {
        padding: var(--spacing-md);
    }
    
    .upload-icon {
        width: 70px;
        height: 70px;
    }
    
    .upload-icon i {
        font-size: 2rem;
    }
}

/* Large Screens (1440px and above) */
@media (min-width: 1440px) {
    .container {
        max-width: 1320px;
    }
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

/* ==========================================
   UNIQUE ADVANCED ANIMATIONS
   ========================================== */

/* Floating animation for icons */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
}

.float-animation {
    animation: float 3s ease-in-out infinite;
}

/* Shimmer effect for buttons */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-shine);
    background-size: 1000px 100%;
    animation: shimmer 3s infinite;
    opacity: 0;
    pointer-events: none;
}

.btn-primary:hover::after {
    opacity: 1;
}

/* Glow pulse animation */
@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(20, 184, 166, 0.4);
    }
    50% {
        box-shadow: 0 0 40px rgba(20, 184, 166, 0.8);
    }
}

.glow-pulse {
    animation: glowPulse 2s ease-in-out infinite;
}

/* Rotate scale animation */
@keyframes rotateScale {
    0% {
        transform: rotate(0deg) scale(1);
    }
    50% {
        transform: rotate(180deg) scale(1.1);
    }
    100% {
        transform: rotate(360deg) scale(1);
    }
}

.feature-icon:hover {
    animation: rotateScale 0.6s ease-in-out;
}

/* Bounce animation */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-20px);
    }
    60% {
        transform: translateY(-10px);
    }
}

.bounce-animation {
    animation: bounce 2s infinite;
}

/* Wave animation for hero section */
@keyframes wave {
    0%, 100% {
        clip-path: polygon(
            0% 45%,
            15% 44%,
            33% 50%,
            55% 46%,
            75% 50%,
            95% 43%,
            100% 46%,
            100% 100%,
            0% 100%
        );
    }
    50% {
        clip-path: polygon(
            0% 50%,
            15% 55%,
            33% 48%,
            55% 54%,
            75% 48%,
            95% 52%,
            100% 50%,
            100% 100%,
            0% 100%
        );
    }
}

/* Gradient animation */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.gradient-animation {
    background-size: 200% 200%;
    animation: gradientShift 5s ease infinite;
}

/* Type writer effect */
@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

/* Neon glow effect */
@keyframes neonGlow {
    0%, 100% {
        text-shadow: 
            0 0 10px rgba(20, 184, 166, 0.8),
            0 0 20px rgba(20, 184, 166, 0.6),
            0 0 30px rgba(20, 184, 166, 0.4);
    }
    50% {
        text-shadow: 
            0 0 20px rgba(20, 184, 166, 1),
            0 0 30px rgba(20, 184, 166, 0.8),
            0 0 40px rgba(20, 184, 166, 0.6),
            0 0 50px rgba(14, 165, 233, 0.4);
    }
}

.logo-2 {
    animation: neonGlow 2s ease-in-out infinite;
}

/* Slide and fade for cards */
@keyframes slideInFade {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 3D flip animation */
@keyframes flip3D {
    0% {
        transform: perspective(1000px) rotateY(0);
    }
    100% {
        transform: perspective(1000px) rotateY(360deg);
    }
}

.feature-card:active {
    animation: flip3D 0.8s ease-in-out;
}

/* Particle effect background */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle, rgba(20, 184, 166, 0.1) 1px, transparent 1px),
        radial-gradient(circle, rgba(14, 165, 233, 0.1) 1px, transparent 1px);
    background-size: 50px 50px, 80px 80px;
    background-position: 0 0, 40px 40px;
    animation: particleMove 20s linear infinite;
    opacity: 0.3;
    pointer-events: none;
}

@keyframes particleMove {
    0% {
        background-position: 0 0, 40px 40px;
    }
    100% {
        background-position: 50px 50px, 90px 90px;
    }
}

/* Image zoom on hover */
.how-to-image {
    transition: transform 0.5s ease;
    cursor: pointer;
}

.how-to-image:hover {
    transform: scale(1.05);
}

/* ==========================================
   PRINT STYLES
   ========================================== */
@media print {
    .navbar,
    .footer,
    .hero-cta,
    .cta-section,
    .social-icons {
        display: none;
    }
    
    body {
        color: #000;
        background: #fff;
    }
}