/* ========================================
   GrowDesh - Professional Landing Page Styles
   ======================================== */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@300;400;500;600;700;800&display=swap');

/* ========================================
   CSS Variables & Root Settings
   ======================================== */
:root {
    /* Brand Colors */
    --color-primary: #7AC943;
    --color-primary-dark: #6ab53a;
    --color-primary-light: #8fd456;
    --color-secondary: #0E2A47;
    --color-secondary-light: #1a3a5f;
    
    /* Background Colors */
    --color-bg-main: #FFFFFF;
    --color-bg-alt: #F4F8FB;
    --color-bg-dark: #1F2937;
    
    /* Text Colors */
    --color-text-main: #1F2937;
    --color-text-sub: #4B5563;
    --color-text-muted: #6B7280;
    --color-text-light: #9CA3AF;
    
    /* Accent Colors */
    --color-blue: #3B82F6;
    --color-blue-dark: #2563EB;
    --color-purple: #8B5CF6;
    --color-orange: #F59E0B;
    --color-red: #EF4444;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #7AC943 0%, #6ab53a 100%);
    --gradient-primary-glow: linear-gradient(135deg, #8fd456 0%, #7AC943 100%);
    --gradient-secondary: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
    --gradient-hero: linear-gradient(135deg, #f4f8fb 0%, #ffffff 100%);
    --gradient-dark: linear-gradient(135deg, #1F2937 0%, #111827 100%);
    
    /* 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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Glow Effects */
    --glow-green: 0 0 20px rgba(122, 201, 67, 0.4);
    --glow-blue: 0 0 20px rgba(59, 130, 246, 0.4);
    --glow-purple: 0 0 20px rgba(139, 92, 246, 0.4);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
}

/* ========================================
   Reset & Base Styles
   ======================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: 'Hind Siliguri', sans-serif;
    line-height: 1.6;
    color: var(--color-text-main);
    background-color: var(--color-bg-main);
    overflow-x: hidden;
}

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

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

ul,
ol {
    list-style: none;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Hind Siliguri', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-main);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--space-md);
}

/* ========================================
   Layout Utilities
   ======================================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-3xl) 0;
}

/* ========================================
   Animation Classes
   ======================================== */

/* Fade In Animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Slide Up Animation */
.slide-up {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Slide Left Animation */
.slide-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-left.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Slide Right Animation */
.slide-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Scale Animation */
.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* Stagger Animation Delay */
.slide-up:nth-child(1) { transition-delay: 0.1s; }
.slide-up:nth-child(2) { transition-delay: 0.2s; }
.slide-up:nth-child(3) { transition-delay: 0.3s; }
.slide-up:nth-child(4) { transition-delay: 0.4s; }

/* ========================================
   Button Styles
   ======================================== */

/* Primary Button with Glow */
.btn-primary-glow {
    background: var(--gradient-primary);
    color: white;
    font-weight: 600;
    padding: 1rem 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn-primary-glow:hover::before {
    left: 100%;
}

.btn-primary-glow:hover {
    background: var(--gradient-primary-glow);
    box-shadow: var(--glow-green), var(--shadow-xl);
    transform: translateY(-2px) scale(1.02);
}

.btn-primary-glow:active {
    transform: translateY(0) scale(1);
}

/* Secondary Button */
.btn-secondary {
    background: white;
    color: var(--color-text-main);
    font-weight: 600;
    padding: 1rem 2rem;
    border: 2px solid #E5E7EB;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* Secondary Button with Glow */
.btn-secondary-glow {
    background: var(--gradient-secondary);
    color: white;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.btn-secondary-glow:hover {
    box-shadow: var(--glow-blue), var(--shadow-xl);
    transform: translateY(-2px) scale(1.02);
}

/* ========================================
   Form Styles
   ======================================== */
.form-input-enhanced {
    width: 100%;
    padding: 1rem 1.5rem;
    border: 2px solid #E5E7EB;
    border-radius: var(--radius-xl);
    font-size: 1rem;
    font-family: 'Hind Siliguri', sans-serif;
    transition: all var(--transition-normal);
    background: white;
}

.form-input-enhanced:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(122, 201, 67, 0.1);
    outline: none;
}

.form-input-enhanced:hover {
    border-color: var(--color-primary-light);
}

.form-input-enhanced::placeholder {
    color: var(--color-text-muted);
}

/* ========================================
   Hero Section Styles
   ======================================== */
.hero-bg {
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23000" opacity="0.02"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

/* ========================================
   Service Card Styles
   ======================================== */
.service-card-advanced {
    background: white;
    border-radius: var(--radius-2xl);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card-advanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.service-card-advanced:hover::before {
    transform: scaleX(1);
}

.service-card-advanced:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

/* ========================================
   Header Styles
   ======================================== */
#header {
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
    transition: all var(--transition-normal);
}

#header.scrolled {
    box-shadow: var(--shadow-lg);
    background: rgba(255, 255, 255, 0.98);
}

.nav-link {
    position: relative;
    font-weight: 500;
    transition: all var(--transition-normal);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-normal);
}

.nav-link:hover::after {
    width: 100%;
}

/* ========================================
   WhatsApp Floating Button
   ======================================== */
.whatsapp-float-fixed {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    z-index: 1000;
    animation: float 3s ease-in-out infinite;
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.3);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.whatsapp-float-fixed:hover {
    animation: none;
    transform: scale(1.1);
    box-shadow: 0 12px 35px rgba(37, 211, 102, 0.4);
}

/* ========================================
   Mobile Menu Styles
   ======================================== */
#mobile-menu {
    transform: translateY(-10px);
    opacity: 0;
    transition: all var(--transition-normal);
}

#mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
}

/* ========================================
   Utility Classes
   ======================================== */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: var(--gradient-primary);
}

.bg-gradient-secondary {
    background: var(--gradient-secondary);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.75rem; }
    h4 { font-size: 1.5rem; }
    
    .btn-primary-glow,
    .btn-secondary {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .whatsapp-float-fixed {
        bottom: 1.5rem;
        left: 1.5rem;
        padding: 0.75rem;
    }
    
    .whatsapp-float-fixed svg {
        width: 1.5rem;
        height: 1.5rem;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .service-card-advanced {
        padding: 1.5rem;
    }
}

/* ========================================
   Loading Animation
   ======================================== */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ========================================
   Scrollbar Styling
   ======================================== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-dark);
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .whatsapp-float-fixed,
    #header,
    .btn-primary-glow,
    .btn-secondary {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
}