/* ==========================================================================
   CSS Variables & Resets
   ========================================================================== */
:root {
    --clr-primary: #16A34A;
    --clr-primary-dark: #15803d;
    --clr-primary-light: #dcfce7;
    --clr-bg: #ffffff;
    --clr-bg-soft: #f4fdf6;
    --clr-text-dark: #1f2937;
    --clr-text-body: #4b5563;
    --clr-border: #e5e7eb;
    --clr-error: #ef4444;
    
    --font-main: 'Hind Siliguri', sans-serif;
    --text-sm: clamp(0.875rem, 0.8rem + 0.38vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.63vw, 1.25rem);
    --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1.88vw, 3rem);
    
    --container-width: 1200px;
    --section-pad-y: clamp(3rem, 5vw, 6rem);
    
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --transition: all 0.3s ease;
}

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

html { scroll-behavior: smooth; }
body {
    font-family: var(--font-main);
    color: var(--clr-text-body);
    background-color: var(--clr-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 { color: var(--clr-text-dark); line-height: 1.2; font-weight: 700; margin-bottom: 1rem; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

/* Utilities */
.container { width: 100%; max-width: var(--container-width); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: var(--section-pad-y) 0; }
.text-center { text-align: center; }
.text-primary { color: var(--clr-primary); }
.bg-soft { background-color: var(--clr-bg-soft); }
.grid { display: grid; gap: 2rem; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 0.875rem 2rem; font-size: var(--text-base); font-weight: 600;
    border-radius: 999px; border: none; cursor: pointer; transition: var(--transition);
}
.btn-primary { background-color: var(--clr-primary); color: white; box-shadow: 0 4px 14px 0 rgba(22, 163, 74, 0.39); }
.btn-primary:hover { background-color: var(--clr-primary-dark); transform: translateY(-2px); }
.btn-secondary { background-color: transparent; color: var(--clr-primary); border: 2px solid var(--clr-primary); }
.btn-secondary:hover { background-color: var(--clr-primary-light); }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }

/* Header */
.header {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
    background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--clr-border);
}
.header-container { display: flex; justify-content: space-between; align-items: center; height: 4.5rem; }
.logo { font-size: var(--text-2xl); font-weight: 700; color: var(--clr-primary); }
.nav { display: none; }
.hamburger { display: block; background: transparent; border: none; cursor: pointer; }
.hamburger .bar { display: block; width: 25px; height: 3px; margin: 5px auto; background: var(--clr-text-dark); transition: 0.3s; }
.nav-cta { display: none; }

/* Hero */
.hero { padding-top: calc(4.5rem + var(--section-pad-y)); padding-bottom: var(--section-pad-y); }
.hero-container { display: flex; flex-direction: column; gap: 3rem; align-items: center; text-align: center; }
.badge { display: inline-block; padding: 0.25rem 1rem; background-color: var(--clr-primary-light); color: var(--clr-primary-dark); border-radius: 999px; font-weight: 600; margin-bottom: 1rem; }
.hero-title { font-size: var(--text-3xl); }
.price-box { margin-bottom: 2rem; display: flex; align-items: center; justify-content: center; gap: 1rem; }
.regular-price { text-decoration: line-through; color: #9ca3af; font-size: var(--text-lg); }
.offer-price { font-size: var(--text-2xl); font-weight: 700; color: var(--clr-error); }
.hero-buttons { display: flex; flex-direction: column; gap: 1rem; width: 100%; max-width: 300px; margin: 0 auto; }
.hero-image img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }

/* Trust Badges & Cards */
.trust-badges { padding: 2rem 0; border-top: 1px solid var(--clr-border); border-bottom: 1px solid var(--clr-border); }
.trust-container { display: flex; flex-wrap: wrap; gap: 1.5rem; justify-content: center; }
.trust-item { font-weight: 500; font-size: var(--text-sm); }
.trust-item .icon { color: var(--clr-primary); }

.step-grid { grid-template-columns: 1fr; }
.step-card { text-align: center; padding: 2rem; background: var(--clr-bg); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); border: 1px solid var(--clr-border); }
.step-number { width: 60px; height: 60px; background: var(--clr-primary-light); color: var(--clr-primary); font-size: var(--text-2xl); font-weight: 700; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 1.5rem; }

.split-grid { grid-template-columns: 1fr; align-items: center; }
.feature-list li { margin-bottom: 1.5rem; position: relative; padding-left: 2rem; }
.feature-list li::before { content: "✔"; position: absolute; left: 0; color: var(--clr-primary); font-weight: bold; }

/* Countdown Timer */
.countdown-wrapper { text-align: center; margin-bottom: 2rem; background: var(--clr-error); color: white; padding: 1.5rem; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); animation: pulseBg 2s infinite; }
@keyframes pulseBg { 0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); } 70% { box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); } 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); } }
.countdown-wrapper h3 { color: white; margin-bottom: 1rem; font-size: var(--text-lg); }
.timer { display: flex; justify-content: center; gap: 1rem; }
.time-box { background: white; color: var(--clr-error); padding: 0.5rem 1rem; border-radius: var(--radius-md); min-width: 70px; font-weight: 700; font-size: 1.5rem; display: flex; flex-direction: column; line-height: 1; }
.time-box small { font-size: 0.75rem; color: var(--clr-text-dark); margin-top: 5px; font-weight: 500; }

/* Order Form & Calculation Summary */
.order-box { max-width: 600px; margin: 0 auto; background: var(--clr-bg); padding: 2rem; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); border: 2px solid var(--clr-primary-light); }
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; margin-bottom: 0.4rem; font-weight: 600; font-size: var(--text-sm); color: var(--clr-text-dark); }

/* Updated Input Field Size (Sleeker for Mobile) */
.form-group input, .form-group textarea, .form-group select { 
    width: 100%; 
    padding: 0.7rem 0.875rem; /* Reduced height to make it look smaller */
    border: 1px solid var(--clr-border); 
    border-radius: var(--radius-md); 
    font-family: var(--font-main); 
    font-size: var(--text-base); 
    transition: var(--transition); 
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--clr-primary); box-shadow: 0 0 0 3px var(--clr-primary-light); }
.form-group input.error, .form-group select.error, .form-group textarea.error { border-color: var(--clr-error); box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2); }

.order-summary-box { background: var(--clr-bg-soft); padding: 1.2rem; border-radius: var(--radius-md); margin-bottom: 1.5rem; border: 1px dashed var(--clr-primary); }
.summary-row { display: flex; justify-content: space-between; margin-bottom: 0.5rem; font-size: var(--text-base); color: var(--clr-text-body); }
.summary-row.total { font-weight: 700; font-size: var(--text-lg); color: var(--clr-text-dark); border-top: 1px solid var(--clr-border); padding-top: 0.75rem; margin-bottom: 0; }

/* Footer & Floating Buttons */
.floating-actions { 
    position: fixed; 
    bottom: 20px; 
    right: 20px; 
    display: flex; 
    flex-direction: column; 
    gap: 12px; 
    z-index: 999; 
}

.float-btn { 
    width: 52px; 
    height: 52px; 
    border-radius: 50%; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    color: white; 
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2); 
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); 
    border: none; 
    text-decoration: none;
}

/* Brand Colors */
.whatsapp { background: #25D366; }
.imo { background: #0099ff; }
.facebook { background: #1877F2; }

/* Hover Animations for Logos */
.float-btn:hover { 
    transform: scale(1.1) translateY(-3px); 
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.3);
}

.float-btn svg, .float-btn span {
    transition: transform 0.3s;
}

.float-btn:hover svg, .float-btn:hover span {
    transform: scale(1.1);
}

/* Fake Sales Popup */
.sales-popup { position: fixed; bottom: 20px; left: -400px; background: white; padding: 1rem; border-radius: var(--radius-md); box-shadow: var(--shadow-lg); border-left: 4px solid var(--clr-primary); z-index: 1000; transition: left 0.5s ease-in-out; max-width: 320px; }
.sales-popup.show { left: 20px; }
.popup-content { display: flex; align-items: center; gap: 1rem; }
.popup-icon { font-size: 2rem; }
.popup-text { font-size: var(--text-sm); color: var(--clr-text-dark); margin: 0; line-height: 1.3; }
.popup-subtext { font-size: 0.75rem; color: var(--clr-primary); margin: 0; font-weight: 600; }


/* ==========================================================================
   Custom Success Modal
   ========================================================================== */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(3px);
    display: flex; align-items: center; justify-content: center;
    z-index: 2000;
    opacity: 0; visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.show {
    opacity: 1; visibility: visible;
}

.modal-content {
    background: var(--clr-bg);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    max-width: 400px;
    width: 90%;
    transform: scale(0.8);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: var(--shadow-lg);
}

.modal-overlay.show .modal-content {
    transform: scale(1);
}

.success-icon {
    width: 80px; height: 80px;
    background: var(--clr-primary-light);
    color: var(--clr-primary);
    font-size: 3rem;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 0 20px rgba(22, 163, 74, 0.2);
}

.modal-content h3 {
    font-size: var(--text-2xl);
    color: var(--clr-text-dark);
    margin-bottom: 0.5rem;
}

.modal-content p {
    color: var(--clr-text-body);
    margin-bottom: 1.5rem;
    font-size: var(--text-base);
}


/* ==========================================================================
   Media Queries
   ========================================================================== */
@media (min-width: 576px) { .hero-buttons { flex-direction: row; max-width: fit-content; } }
@media (min-width: 768px) {
    .step-grid { grid-template-columns: repeat(3, 1fr); }
    .split-grid { grid-template-columns: 1fr 1fr; gap: 4rem; }
}
@media (min-width: 992px) {
    .hamburger { display: none; }
    .nav { display: block; position: static; }
    .nav-list { display: flex; gap: 2rem; }
    .nav-cta { display: inline-flex; }
    .hero-container { flex-direction: row; text-align: left; }
    .hero-content, .hero-image { flex: 1; }
    .price-box, .hero-buttons { justify-content: flex-start; }
}