/* style.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
    user-select: none;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden; /* Prevent horizontal scroll bugs */
}

body {
    background: linear-gradient(135deg, #1f1c2c, #928dab);
    color: #fff;
    overflow-x: hidden;
}

/* Body lock class for when mobile menu is open */
body.menu-open {
    overflow: hidden;
}

/* Main Header */
header {
    background: rgba(255,255,255,0.08);
    padding: 15px 18px;
    display: flex;
    position: sticky;
    top: 0;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255,255,255,0.2);
    backdrop-filter: blur(15px);
    z-index: 999;
}

#menuBtn {
    font-size: 37px;
    cursor: pointer;
    background: none;
    border: none;
    color: #fff;
    transition: 0.3s ease;
}

#menuBtn:hover {
    transform: scale(1.1);
    color: #f9d423;
}

/* Sidebar Navigation */
.sidebar {
    position: fixed;
    top: 0;
    left: -280px; 
    width: 280px;
    height: 100vh;
    background: rgba(31, 28, 44, 0.95);
    padding-top: 80px;
    transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-right: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(20px);
    box-shadow: 5px 0 15px rgba(0,0,0,0.5);
    z-index: 1000;
    overflow-y: auto;
}

.sidebar.active {
    left: 0; 
}

/* Modern Close Button */
.close-menu {
    position: absolute;
    top: 20px;
    right: 25px;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 30px;
    cursor: pointer;
    transition: transform 0.4s ease, color 0.3s;
}

.close-menu:hover {
    transform: rotate(90deg) scale(1.2);
    color: #ff4e50;
}

.sidebar a {
    display: block;
    padding: 15px 25px;
    color: #fff;
    font-size: 18px;
    text-decoration: none;
    transition: 0.3s;
    border-left: 4px solid transparent;
}

.sidebar a:hover {
    background: rgba(255, 255, 255, 0.1);
    border-left: 4px solid #f9d423;
    transform: translateX(8px);
}

hr {
    border: none;
    border-top: 1px solid rgba(255,255,255,0.2);
    margin: 15px 0;
}
/* ==========================================================================
   QUOTE STRIP STYLING
   ========================================================================== */
.quote-section {
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 35px 24px;
    text-align: center;
}

.educational-quote {
    font-size: 1.35rem;
    font-style: italic;
    max-width: 800px;
    margin: 0 auto;
    font-weight: 300;
}

.quote-inline-icon {
    opacity: 0.3;
    margin-right: 6px;
    font-size: 1.1rem;
}

.educational-quote cite {
    display: block;
    margin-top: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    color: var(--light-blue);
    font-style: normal;
}
/* Header1 section */
.header1 {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    padding: 0 20px;
}

.w {
    font-size: 3rem;
    margin-top: 40px;
    text-shadow: 0 5px 15px rgba(0,0,0,0.4);
}

.hero-main-text {
    font-size: 1.3em;
    margin-bottom: 10px;
    animation: fadeInUp 1.5s ease forwards;
    opacity: 0;
}

.hero-subtext {
    font-size: 1.1em;
    color: #e0e0e0;
    margin-bottom: 30px;
    max-width: 600px;
    line-height: 1.6;
    animation: fadeInUp 1.8s ease forwards;
    opacity: 0;
}

/* Container for Header Buttons */
.header-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    z-index: 10;
}

.header1 .cta-btn {
    padding: 14px 35px;
    background: linear-gradient(90deg, #ff4e50, #cb1139);
    border: none;
    border-radius: 30px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 600;
    color: #fff;
    box-shadow: 0 8px 20px rgba(255, 78, 80, 0.4);
    transition: 0.4s ease;
    animation: fadeInUp 2s ease forwards;
    opacity: 0;
}

.header1 .cta-btn:hover {
    background: linear-gradient(90deg, #f9d423, #ff4e50);
    color: #fff;
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(249, 212, 35, 0.5);
}

/* Floating shapes */
.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.6;
    animation: float 6s ease-in-out infinite;
    z-index: 0;
}

.shape2 {
    width: 80px;
    height: 80px;
    background: #f9d423;
    top: 20%; 
    left: 80%;
    animation-delay: 2s;
}

 
@keyframes fadeInUp {
    0% { opacity: 0; transform: translateY(30px);}
    100% { opacity: 1; transform: translateY(0);}
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg);}
    50% { transform: translateY(-25px) rotate(10deg);}
}


.footer{
    background:black;
    border-top:1px solid rgba(255,255,255,.08);
    padding:45px 7% 18px;
    position:relative;
}

.footer::before{
    content:"";
    position:absolute;
    left:0;
    top:0;
    width:100%;
    height:2px;
    background:linear-gradient(90deg,#ff9800,#ff5722,#ff9800);
}

.footer-container{
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:40px;
    flex-wrap:wrap;
}

.footer-logo h2{
    color:#fff;
    font-size:30px;
    margin-bottom:8px;
}

.footer-logo p{
    color:#aaa;
    font-size:15px;
}

.footer-links{
    display:flex;
    gap:22px;
    flex-wrap:wrap;
}

.footer-links a{
    color:#cfcfcf;
    text-decoration:none;
    transition:.3s;
}

.footer-links a:hover{
    color:#ff9800;
}

.footer-social{
    display:flex;
    gap:15px;
}

.footer-social a{
    width:42px;
    height:42px;
    border-radius:50%;
    background:#1b1f2c;
    color:#fff;
    display:flex;
    justify-content:center;
    align-items:center;
    transition:.3s;
}

.footer-social a:hover{
    background:#ff9800;
    transform:translateY(-5px);
}

.footer-bottom{
    margin-top:28px;
    padding-top:18px;
    border-top:1px solid rgba(255,255,255,.08);
    text-align:center;
    color:#888;
    font-size:14px;
}

/* Back To Top */

#topBtn{
    position:fixed;
    right:25px;
    bottom:25px;
    width:48px;
    height:48px;
    border:none;
    border-radius:50%;
    background:#ff9800;
    color:#fff;
    font-size:18px;
    cursor:pointer;
    display:none;
    z-index:999;
    transition:.3s;
}

#topBtn:hover{
    transform:translateY(-5px);
    box-shadow:0 0 20px rgba(255,152,0,.5);
}

#topBtn.show{
    display:flex;
    align-items:center;
    justify-content:center;
}

@media(max-width:768px){

.footer-container{
flex-direction:column;
text-align:center;
}

.footer-links{
justify-content:center;
}

}








.note {
    font-size: 28px;
    margin-left: 2%;
    animation: floatText 4s ease-in-out infinite;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

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

.hlink {
    position: relative;
    display: inline-block;
    font-size: 24px;
    margin-left: 15px;
    text-decoration: none;
    color: #ffffff;
    transition: 0.3s;
}
.hlink:hover { color: #f9d423; transform: scale(1.1); }

/* --- Decorative Balls (Fixed Syntax) --- */
.ball {
    position: absolute;
    width: 130px;
    height: 130px;
    border-radius: 50%;
    box-shadow: 0 8px 25px rgba(0,0,0,0.4);
    transition: all 400ms cubic-bezier(.2,.9,.3,1);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    z-index: 2;
}

.ball.red { background: linear-gradient(135deg, #ff4e50, #cb1139); top: 10%; left: 10%; }

/* Animated Icon Inside Ball */
.animated-icon {
    font-size: 45px;
    color: #fff;
    animation: premiumPulse 2s infinite alternate, iconFloat 3s ease-in-out infinite;
}

@keyframes premiumPulse {
    0% { filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.4)); transform: scale(1); }
    100% { filter: drop-shadow(0 0 15px rgba(249, 212, 35, 0.9)); transform: scale(1.1); }
}

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

/* Overlay */
.overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(5px);
    display: none;
    z-index: 30;
}
.overlay.show { display: block; }

/* Active Ball Fixes (Removed rogue */ /* comments) */
.ball.active {
    position: fixed;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    width: 320px !important;
    height: 320px !important;
    box-shadow: 0 30px 80px rgba(0,0,0,0.8);
    z-index: 40;
    cursor: default;
    flex-direction: column;
}

.ball.active .animated-icon {
    margin-bottom: 20px;
    font-size: 60px;
    animation: none; /* Stop floating when opened */
}

/* Message inside the ball */
.ball .msg {
    color: #fff;
    font-weight: 500;
    text-align: center;
    padding: 0 25px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 400ms ease;
    pointer-events: none;
    font-size: 18px;
    line-height: 1.4;
    display: none;
}

.ball.active .msg {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
    display: block;
}

/* Close Hint */
.close-hint {
    position: fixed;
    top: calc(50% + 200px);
    left: 50%;
    transform: translateX(-50%);
    color: #fff;
    font-size: 15px;
    letter-spacing: 1px;
    z-index: 41;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}
.overlay.show + .close-hint { opacity: 1; }

/* Run Bar */
.run-bar {
    width: 100%;
    overflow: hidden;
    background-color:black;
    height: 50px;
    display: flex;
    align-items: center;
}

.run-bar p {
    white-space: nowrap;
    font-size: 16px;
    font-weight: 500;
    padding-left: 100%;
    animation: scrollText 15s linear infinite;
    letter-spacing: 1px;
}

@keyframes scrollText {
    0% { transform: translateX(0); }
    100% { transform: translateX(-100%); }
}

/* Responsive Rules */
@media (max-width: 768px) {
    .w { font-size: 2.2rem; }
    .hero-main-text { font-size: 1.1rem; }
    .header-btns { flex-direction: column; width: 100%; align-items: center; }
    .header1 .cta-btn { width: 80%; }
    .footer-container { flex-direction: column; text-align: center; }
    .footer-column h3::after { left: 25%; }
    .ball.red { top: 12%; left: 5%; width: 100px; height: 100px; }
    .animated-icon { font-size: 35px; }
}

@media (max-width: 480px) {
    .ball.active { width: 280px !important; height: 280px !important; }
    .ball .msg { font-size: 16px; }
}

















 /* =========================================
   Variables & Reset
========================================= */
:root {
    --bg-dark: #050505;
    --card-bg: rgba(20, 20, 20, 0.4);
    --card-border: rgba(255, 255, 255, 0.06);
    --card-hover-border: rgba(255, 255, 255, 0.2);
    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.5);
    
    --accent-glow: rgba(255, 255, 255, 0.05);
    --accent-line: rgba(255, 255, 255, 0.12);
    
    --badge-beginner-bg: rgba(74, 222, 128, 0.1);
    --badge-beginner-color: #4ade80;
    --badge-intermediate-bg: rgba(250, 204, 21, 0.1);
    --badge-intermediate-color: #facc15;
    --badge-advanced-bg: rgba(248, 113, 113, 0.1);
    --badge-advanced-color: #f87171;
    
    --font-main: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* =========================================
   Header & Search
========================================= */

.search-container {
    max-width: 400px;
    margin: 0 auto;
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 16px;
    width: 18px;
    height: 18px;
    color: var(--text-secondary);
}

#roadmap-search {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 14px 14px 14px 44px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

#roadmap-search:focus {
    border-color: var(--card-hover-border);
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.05);
}

/* =========================================
   Roadmap Layout & SVG Lines
========================================= */
.roadmap-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px 20px 100px;
    position: relative;
}

#connection-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.connector-line {
    fill: none;
    stroke: var(--accent-line);
    stroke-width: 2px;
    stroke-linecap: round;
    stroke-dasharray: 8 8;
    animation: flowLines 30s linear infinite;
}

@keyframes flowLines {
    to { stroke-dashoffset: -1000; }
}

.level {
    position: relative;
    z-index: 1;
    margin-bottom: 80px;
}

/* =========================================
   Level Header (Nodes)
========================================= */
.level-header {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
}

.level-node {
    background: rgba(20, 20, 20, 0.8);
    backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    padding: 12px 28px;
    border-radius: 100px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.3s;
}

.level-node:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(255, 255, 255, 0.05);
    border-color: var(--card-hover-border);
}

.level-icon {
    font-size: 1.2rem;
}

.level-node h2 {
    font-size: 1.1rem;
    font-weight: 600;
}

.chevron {
    display: none; /* Hidden on Desktop */
    font-size: 0.7rem;
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}

/* =========================================
   Topics Grid & Cards
========================================= */
.level-topics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.topic-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 24px;
    text-decoration: none;
    color: inherit;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transform: translateZ(0); /* GPU Acceleration */
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), 
                box-shadow 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), 
                border-color 0.4s ease, 
                opacity 0.4s ease;
}

/* Hover Effects */
.topic-card:hover {
    transform: translateY(-4px) scale(1.02);
    border-color: var(--card-hover-border);
    box-shadow: 0 16px 40px var(--accent-glow);
}

/* Search Dimming */
.topic-card.dimmed {
    opacity: 0.15;
    transform: scale(0.96);
    pointer-events: none;
}
.topic-card.highlight {
    border-color: var(--text-secondary);
    box-shadow: 0 0 20px rgba(255,255,255,0.08);
}

/* Card Content */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.topic-icon {
    font-size: 1.5rem;
}

.status-indicator {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid var(--text-secondary);
}

.status-indicator.done { background: #fff; border-color: #fff; }
.status-indicator.progress { background: linear-gradient(90deg, #fff 50%, transparent 50%); border-color: #fff; }
.status-indicator.todo { background: transparent; }

.topic-title {
    font-size: 1.05rem;
    font-weight: 500;
    margin-top: auto;
}

/* Badges */
.badge {
    align-self: flex-start;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge.beginner { background: var(--badge-beginner-bg); color: var(--badge-beginner-color); }
.badge.intermediate { background: var(--badge-intermediate-bg); color: var(--badge-intermediate-color); }
.badge.advanced { background: var(--badge-advanced-bg); color: var(--badge-advanced-color); }

/* =========================================
   Ripple Animation Effect
========================================= */
.ripple {
    position: absolute;
    border-radius: 50%;
    transform: scale(0);
    animation: ripple-animation 600ms linear;
    background-color: rgba(255, 255, 255, 0.1);
    pointer-events: none;
}

@keyframes ripple-animation {
    to { transform: scale(4); opacity: 0; }
}

/* =========================================
   Responsive Design
========================================= */

/* Tablet */
@media (max-width: 992px) {
    .level-topics {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

/* Mobile (Accordion View) */
@media (max-width: 768px) {
    .roadmap-container {
        padding: 20px 16px 80px;
    }
    
    .level {
        margin-bottom: 24px;
    }

    .level-header {
        justify-content: flex-start;
        margin-bottom: 0;
    }

    .level-node {
        width: 100%;
        justify-content: flex-start;
        padding: 16px 20px;
        border-radius: 16px;
        cursor: pointer;
        min-height: 48px; /* Touch target */
    }

    .level-node h2 {
        flex-grow: 1;
        font-size: 1rem;
    }

    .chevron {
        display: block;
    }

    .level.collapsed .chevron {
        transform: rotate(-90deg);
    }

    .level-topics {
        display: flex;
        flex-direction: column;
        grid-template-columns: none;
        gap: 12px;
        padding-top: 12px;
        padding-left: 24px; /* Indent child nodes */
        
        /* Accordion Animation Mechanics */
        max-height: 2000px;
        opacity: 1;
        transform: translateY(0);
        transition: max-height 0.5s cubic-bezier(0.25, 0.8, 0.25, 1), 
                    opacity 0.4s ease, 
                    transform 0.4s ease,
                    padding 0.4s ease;
        overflow: hidden;
    }

    .level.collapsed .level-topics {
        max-height: 0;
        opacity: 0;
        padding-top: 0;
        transform: translateY(-10px);
    }

    .topic-card {
        padding: 16px;
        flex-direction: row;
        align-items: center;
        min-height: 64px; /* Touch target */
    }

    .card-header {
        flex-direction: row-reverse;
        gap: 16px;
    }

    .topic-title {
        margin-top: 0;
        flex-grow: 1;
        font-size: 1rem;
    }

    .badge {
        display: none; /* Simplify mobile view to avoid clutter */
    }
}