/* ==========================================
   GLOBAL STYLES
   ========================================== */
:root {
    --bg-color: #000000;
    --text-color: #00e6ff;
    --grid-color: rgba(0, 230, 255, 0.03);
    --border-color: #00e6ff;
    --glow-color: rgba(0, 230, 255, 0.5);
    --btn-bg: rgba(0, 0, 0, 1);
    --btn-hover-bg: rgba(0, 230, 255, 0.3);
    --jumbotron-bg: rgba(0, 30, 40, 0.4);
}

body.light-mode {
    --bg-color: #f0f4f8;
    --text-color: #e85d04;
    --grid-color: rgba(232, 93, 4, 0.08);
    --border-color: #dc2f02;
    --glow-color: rgba(220, 47, 2, 0.5);
    --btn-bg: rgba(240, 244, 248, 1);
    --btn-hover-bg: rgba(232, 93, 4, 0.3);
    --jumbotron-bg: rgba(255, 255, 255, 0.7);
}

body {
    font-family: 'Rajdhani', 'Orbitron', sans-serif;
    background-color: var(--bg-color);
    background-image: 
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 50px 50px;
    color: var(--text-color);
    padding-top: 0;
    position: relative;
    min-height: 100vh;
    margin: 0;
    text-shadow: 0 0 10px var(--glow-color);
}

/* Scroll to Top Button */
#scrollToTop {
    position: fixed;
    bottom: 80px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--btn-bg);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
    z-index: 999;
    box-shadow: 0 0 20px var(--glow-color), inset 0 0 10px var(--glow-color);
}

#scrollToTop.show {
    opacity: 1;
    visibility: visible;
}

#scrollToTop:hover {
    box-shadow: 0 0 30px var(--border-color), inset 0 0 15px var(--glow-color);
    transform: translateY(-5px);
    background-color: var(--btn-hover-bg);
}

/* Theme Toggle Button */
#themeToggle {
    position: fixed;
    top: 10px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--btn-bg);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    z-index: 10005;
    box-shadow: 0 0 15px var(--glow-color);
    transition: all 0.3s ease;
}

#themeToggle:hover {
    box-shadow: 0 0 30px var(--border-color);
    transform: scale(1.1);
    background-color: var(--btn-hover-bg);
}

/* ==========================================
   HEADER & NAVIGATION
   ========================================== */
header {
    background-color: transparent;
    color: var(--text-color);
    padding: 5px 0;
    text-align: center;
    position: relative;
    width: 100%;
    z-index: 9999;
}

header.scrolled {
    background-color: transparent;
}

header h1 {
    margin-top: 0;
    margin-bottom: 5px;
    font-family: 'Orbitron', sans-serif;
    text-shadow: 0 0 20px var(--glow-color);
    letter-spacing: 3px;
}

header h1 a {
    color: var(--text-color);
    text-decoration: none;
    text-shadow: 0 0 10px var(--glow-color);
}

.navbar {
    background-color: transparent !important;
    border: none;
    box-shadow: none;
    position: relative;
    z-index: 10000;
}

.navbar-brand {
    margin: 0 35px;
}

.navbar-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    z-index: 10000;
    background-color: transparent;
    padding-top: 60px;
}

.container-fluid {
    position: relative;
    z-index: 10000;
}

.navbar-btn {
    background-color: var(--btn-bg);
    border: 2px solid var(--border-color);
    color: var(--text-color);
    cursor: pointer;
    margin: 0 10px;
    padding: 15px 30px;
    font-size: 16px;
    text-transform: uppercase;
    transition: all 0.3s ease;
    z-index: 10001;
    position: relative;
    border-radius: 0;
    box-shadow: 0 0 10px var(--glow-color);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 2px;
}

.navbar-btn.active {
    background-color: var(--btn-hover-bg);
    box-shadow: 0 0 20px var(--border-color), inset 0 0 10px var(--glow-color);
    border-color: var(--border-color);
    z-index: 10002;
    position: relative;
}

.navbar-btn:hover {
    background-color: var(--btn-hover-bg) !important;
    box-shadow: 0 0 25px var(--border-color), inset 0 0 10px var(--glow-color);
    border-radius: 0;
}

/* ==========================================
   DROPDOWN MENU
   ========================================== */
.dropdown {
    position: relative;
    z-index: 10003;
}

.dropdown-menu {
    background-color: var(--btn-bg);
    border: 2px solid var(--border-color);
    border-radius: 0;
    transition: all 0.3s ease;
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    box-shadow: 0 0 20px var(--glow-color);
    z-index: 10004;
    backdrop-filter: blur(10px);
}

.dropdown-menu.show {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    display: block;
}

.dropdown-menu .dropdown-item {
    color: var(--text-color);
    padding: 10px 20px;
    margin: 5px 0;
    border-radius: 0;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
    background-color: transparent;
    text-shadow: 0 0 8px var(--glow-color);
    border: none;
    text-align: left;
    width: 100%;
    cursor: pointer;
}

.dropdown-menu .dropdown-item:hover {
    background-color: var(--btn-hover-bg);
    color: var(--text-color);
    border-left: 3px solid var(--border-color);
    box-shadow: 0 0 15px var(--glow-color);
    text-shadow: 0 0 12px var(--border-color);
}

/* ==========================================
   CONTAINER & CONTENT
   ========================================== */
.container {
    padding: 20px;
    margin-top: 20px;
    position: relative;
    z-index: 2;
    margin-bottom: 20px;
}

.jumbotron {
    background-color: var(--jumbotron-bg);
    backdrop-filter: blur(10px);
    color: var(--text-color);
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 0;
    position: relative;
    z-index: 10;
    border: 1px solid var(--border-color);
    box-shadow: 0 0 20px var(--glow-color), inset 0 0 30px var(--glow-color);
}

.jumbotron h2 {
    color: var(--text-color);
    text-shadow: 0 0 15px var(--glow-color);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 2px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
    margin-bottom: 15px;
}

/* ==========================================
   BUTTONS
   ========================================== */
.btn-dark {
    background-color: var(--btn-bg) !important;
    color: var(--text-color) !important;
    border: 2px solid var(--border-color) !important;
    border-radius: 0;
    transition: all 0.3s;
    padding: 15px 30px;
    margin-top: 10px;
    cursor: pointer;
    display: inline-block;
    text-decoration: none;
    box-shadow: 0 0 15px var(--glow-color);
}

.btn-dark:hover {
    background-color: var(--btn-hover-bg) !important;
    border-color: var(--border-color) !important;
    box-shadow: 0 0 20px var(--border-color);
}

.button,
.game-button {
    display: inline-block;
    background-color: var(--btn-bg);
    border: 2px solid var(--border-color);
    color: var(--text-color);
    cursor: pointer;
    margin: 5px;
    padding: 12px 20px;
    font-size: 14px;
    text-transform: uppercase;
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 0;
    box-shadow: 0 0 15px var(--glow-color);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 2px;
}

.button:hover,
.game-button:hover {
    background-color: var(--btn-hover-bg);
    box-shadow: 0 0 30px var(--border-color), inset 0 0 15px var(--glow-color);
    transform: translateY(-2px);
}

/* ==========================================
   CONTACT & ICONS
   ========================================== */
.contact-info {
    margin-bottom: 20px;
}

.contact-info a {
    color: var(--text-color);
    text-decoration: none;
    margin-right: 10px;
    transition: all 0.3s ease;
}

.contact-info a:hover {
    color: var(--text-color);
    text-shadow: 0 0 15px var(--glow-color);
}

.icon-link {
    cursor: pointer;
    transition: all 0.3s ease;
}

.icon-link:hover {
    color: var(--text-color);
    filter: drop-shadow(0 0 10px var(--border-color));
    transform: scale(1.1);
}

.contact-icons {
    font-size: 24px;
    color: var(--text-color);
}

.contact-icons:hover {
    color: var(--text-color);
    filter: drop-shadow(0 0 15px var(--border-color));
}

.white-icon {
    color: var(--text-color);
}

/* ==========================================
   SKILLS SECTION
   ========================================== */
.skills-container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.skills-list {
    list-style-type: none;
    padding: 0;
    margin: 0;
    flex: 1;
    margin-right: 20px;
}

.skills-list li {
    margin-bottom: 10px;
    padding-left: 15px;
    border-left: 2px solid var(--border-color);
    color: var(--text-color);
    text-shadow: 0 0 8px var(--glow-color);
    transition: all 0.3s ease;
}

.skills-list li:hover {
    border-left: 3px solid var(--border-color);
    padding-left: 20px;
    text-shadow: 0 0 15px var(--border-color);
}

/* ==========================================
   PORTFOLIO & PROJECTS
   ========================================== */
.project-item {
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

.project-item:hover {
    border-color: transparent;
    box-shadow: none;
}

.project-item a {
    color: var(--text-color);
    text-decoration: none;
}

.project-item a:hover {
    text-decoration: none;
    text-shadow: 0 0 10px var(--glow-color);
}

.project-description {
    display: none;
    position: relative;
    background-color: var(--jumbotron-bg);
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 0;
    color: var(--text-color);
    box-shadow: 0 0 20px var(--glow-color);
    margin-top: 10px;
}

.project-description.active {
    display: block;
}

.project-description p {
    margin-bottom: 10px;
}

.project-icon {
    color: var(--text-color);
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: block;
}

/* ==========================================
   EDUCATION & CERTIFICATIONS
   ========================================== */
.education-list {
    list-style: none;
    padding-left: 0;
}

.education-list li {
    margin-bottom: 10px;
}

.cert-list {
    list-style-type: none;
    padding: 0;
}

.cert-list li a {
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

.cert-list li a:hover {
    text-shadow: 0 0 10px var(--glow-color);
}

.experience-item {
    margin-bottom: 20px;
}

.experience-item h2 {
    margin-top: 0;
}

.experience-item p {
    margin-bottom: 0;
}

/* ==========================================
   VOLUNTEER SECTION
   ========================================== */
.volunteer-item {
    cursor: pointer;
}

.tooltip {
    display: none;
    position: absolute;
    background-color: var(--btn-bg);
    color: var(--text-color);
    font-size: 14px;
    border: 2px solid var(--border-color);
    border-radius: 0;
    padding: 10px 15px;
    max-width: 300px;
    box-shadow: 0 0 20px var(--glow-color);
    transition: opacity 1s ease-in-out;
}

.tooltip.show {
    display: block;
    opacity: 1;
}

.tooltip .tooltip-arrow {
    display: none;
}

/* ==========================================
   FOOTER
   ========================================== */
footer {
    color: var(--text-color);
    width: 100%;
    padding: 10px 0;
    background-color: transparent;
    text-align: center;
    border-top: 1px solid var(--border-color);
    text-shadow: 0 0 10px var(--glow-color);
}

.fixed-bottom {
    position: relative;
    bottom: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    padding-bottom: 10px;
    margin-top: 5px;
}

.copyright-text {
    color: var(--text-color);
    text-shadow: 0 0 8px var(--glow-color);
}

/* ==========================================
   CALCULATOR SPECIFIC STYLES
   ========================================== */
.calculator {
    width: 320px;
    border-radius: 0;
    overflow: hidden;
    box-shadow: 0 0 30px var(--glow-color);
    background-color: var(--jumbotron-bg);
    border: 2px solid var(--border-color);
}

.calculator-screen {
    background-color: var(--btn-bg);
    color: var(--text-color);
    font-size: 32px;
    font-weight: bold;
    padding: 20px;
    border: 1px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
    display: block;
    width: calc(100% - 40px);
    box-sizing: border-box;
    text-shadow: 0 0 10px var(--glow-color);
}

.calculator-keys {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
}

.calculator-keys button {
    background-color: var(--btn-bg);
    color: var(--text-color);
    border: none;
    font-size: 18px;
    font-weight: 300;
    padding: 20px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    border-radius: 0;
    border: 1px solid var(--border-color);
}

.calculator-keys button:hover {
    background-color: var(--btn-hover-bg);
    transform: scale(1.05);
    box-shadow: 0 0 15px var(--border-color);
    border-color: var(--border-color);
}

.calculator-keys button.operator {
    background-color: var(--btn-hover-bg);
    border: 2px solid var(--border-color);
    box-shadow: 0 0 10px var(--glow-color);
}

.calculator-keys button.equal-sign {
    grid-column: span 2;
    background-color: var(--btn-hover-bg);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    font-weight: bold;
    box-shadow: 0 0 15px var(--glow-color);
}

.calculator-keys button.all-clear,
.calculator-keys button.memory {
    background-color: var(--btn-hover-bg);
    border: 2px solid var(--border-color);
    color: var(--text-color);
    box-shadow: 0 0 10px var(--glow-color);
}

.calculator-keys button.function {
    background-color: #673ab7;
}

.spacer {
    background-color: transparent;
    border: none;
}

/* ==========================================
   ANIMATION SPECIFIC STYLES
   ========================================== */
body.animation-page {
    margin: 0;
    overflow: hidden;
    padding-top: 0;
    background: transparent;
}

.animation-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.laser {
    position: absolute;
    width: 2px;
    height: 100px;
    background-color: #00d9ff;
    opacity: 1;
    pointer-events: none;
    animation: laserAnimation linear infinite;
}

@keyframes laserAnimation {
    0% {
        transform: translateY(-100px);
        opacity: .75;
    }
    100% {
        transform: translateY(calc(100vh + 100px));
        opacity: 0;
    }
}

#animation-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

#animation {
    width: 100%;
    height: 100%;
}

/* ==========================================
   GAME SPECIFIC STYLES
   ========================================== */
#game-container {
    width: 400px;
    height: 400px;
    position: relative;
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#game-container h1 {
    text-align: center;
    margin-top: 10px;
}

canvas {
    display: block;
    background-color: var(--bg-color);
    margin: auto;
    border: 2px solid var(--border-color);
    box-shadow: 0 0 30px var(--glow-color);
}

.game-over-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--jumbotron-bg);
    border-radius: 0;
    border: 2px solid var(--border-color);
    padding: 20px;
    text-align: center;
    display: none;
    box-shadow: 0 0 40px var(--glow-color);
}

.game-over-popup h2 {
    margin-top: 0;
    color: var(--text-color);
    font-family: 'Orbitron', sans-serif;
    text-shadow: 0 0 15px var(--border-color);
}

.game-over-popup button {
    background-color: var(--btn-bg);
    border: 2px solid var(--border-color);
    color: var(--text-color);
    padding: 10px 20px;
    margin: 5px;
    cursor: pointer;
    border-radius: 0;
    transition: all 0.3s ease;
}

.game-over-popup button:hover {
    background-color: var(--btn-hover-bg);
    box-shadow: 0 0 20px var(--border-color);
    text-shadow: 0 0 10px var(--border-color);
}

#back-button:hover {
    background-color: #333;
}

.sidebar {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 30%;
    max-width: 600px;
    padding: 20px;
    color: var(--text-color);
    overflow-y: auto;
    background-color: var(--jumbotron-bg);
    border-left: 2px solid var(--border-color);
    backdrop-filter: blur(10px);
    box-shadow: -5px 0 30px var(--glow-color);
}

/* ==========================================
   MEDIA QUERIES - RESPONSIVE DESIGN
   ========================================== */
@media (max-width: 768px) {
    .skills-list {
        margin-right: 0;
        margin-bottom: 20px;
    }

    .sidebar {
        display: none;
    }
}

@media (max-width: 991px) {
    .navbar-btn {
        display: none;
    }

    .dropdown-toggle {
        display: block !important;
    }

    body {
        overflow-y: auto;
    }

    .project-icon,
    .graduation-icon,
    .certificate-icon,
    .card-icon {
        display: none;
    }
}

@media (min-width: 992px) {
    .dropdown-toggle {
        display: none !important;
    }
}

@media (min-width: 1200px) {
    .graduation-cap,
    .volunteer-icon {
        left: 1100px;
    }
}

@media (max-width: 1200px) {
    .graduation-cap,
    .volunteer-icon {
        right: 50px;
    }
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */
.icon {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: block;
}

.text-center {
    text-align: center;
}

.mb-4 {
    margin-bottom: 1.5rem;
}

.position-relative {
    position: relative;
}

.position-absolute {
    position: absolute;
}

.top-50 {
    top: 50%;
}

.end-0 {
    right: 0;
}

.translate-middle-y {
    transform: translateY(-50%);
}