/* --- 1. VARIABLES & RESET --- */
:root {
    /* Dark Mode Defaults */
    --dm-primary-color: #0A192F; /* Deep Navy Blue */
    --dm-secondary-color: #112240; /* Light Navy */
    --dm-background-color: #0A192F;
    --dm-accent-color: #64FFDA; /* Bright Mint */
    --dm-accent-secondary: #4CC9F0; /* Cyan/Blue for gradients */
    --dm-text-light: #CCD6F6; 
    --dm-text-medium: #8892B0; 
    --dm-text-dark: #495670;
    --dm-border-color: rgba(136, 146, 176, 0.2);

    /* Light Mode Variables */
    --lm-primary-color: #F0F4F8;
    --lm-secondary-color: #FFFFFF;
    --lm-background-color: #F0F4F8;
    --lm-accent-color: #007bff;
    --lm-accent-secondary: #00d4ff;
    --lm-text-light: #1E293B;
    --lm-text-medium: #475569;
    --lm-text-dark: #64748B;
    --lm-border-color: rgba(71, 85, 105, 0.1);

    /* Active Variables */
    --primary-color: var(--dm-primary-color);
    --secondary-color: var(--dm-secondary-color);
    --background-color: var(--dm-background-color);
    --accent-color: var(--dm-accent-color);
    --accent-gradient: linear-gradient(135deg, var(--dm-accent-color) 0%, var(--dm-accent-secondary) 100%);
    --text-light: var(--dm-text-light);
    --text-medium: var(--dm-text-medium);
    --text-dark: var(--dm-text-dark);
    --border-color: var(--dm-border-color);

    /* Typography */
    --font-family: 'Inter', sans-serif;
    --fs-base: 1rem; 
    --fs-sm: 0.875rem;
    --fs-lg: 1.125rem;
    --fs-xl: 1.25rem;
    --fs-2xl: 1.5rem;
    --fs-3xl: 2rem;
    --fs-4xl: clamp(2.5rem, 5vw, 4rem); 
    --fs-5xl: clamp(3rem, 6vw, 5rem);

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 1rem;
    --spacing-4: 1.5rem;
    --spacing-5: 2rem;
    --spacing-6: 3rem;
    --spacing-7: 4rem;

    /* Other */
    --border-radius: 0.75rem;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --header-height: 5rem;
}

body.light-mode {
    --primary-color: var(--lm-primary-color);
    --secondary-color: var(--lm-secondary-color);
    --background-color: var(--lm-background-color);
    --accent-color: var(--lm-accent-color);
    --accent-gradient: linear-gradient(135deg, var(--lm-accent-color) 0%, var(--lm-accent-secondary) 100%);
    --text-light: var(--lm-text-light);
    --text-medium: var(--lm-text-medium);
    --text-dark: var(--lm-text-dark);
    --border-color: var(--lm-border-color);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    background-color: var(--background-color);
    color: var(--text-light);
    font-family: var(--font-family);
    font-size: var(--fs-base);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* --- Stylish Preloader --- */
#preloader {
    position: fixed;
    inset: 0;
    background-color: var(--dm-primary-color);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.5s ease, visibility 0.5s ease;
    flex-direction: column;
}

#preloader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

#matrix-preloader-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.2; 
}

.preloader-text {
    color: var(--dm-accent-color); 
    font-family: 'Monospace', monospace;
    font-size: clamp(1rem, 2vw, 1.5rem);
    font-weight: 500;
    text-align: center;
    padding: 1rem;
    z-index: 2;
    text-shadow: 0 0 10px rgba(100, 255, 218, 0.5);
    min-height: 3em; 
}

.preloader-skip {
    margin-top: 20px;
    font-size: 0.8rem;
    color: var(--dm-text-dark);
    cursor: pointer;
    text-decoration: underline;
    z-index: 3;
    opacity: 0;
    animation: fadeIn 2s forwards;
}

@keyframes fadeIn {
    0% { opacity: 0; }
    100% { opacity: 0.7; }
}

.preloader-text .cursor {
    display: inline-block;
    width: 10px;
    height: 1.2em;
    background-color: var(--dm-accent-color);
    animation: blink 0.8s step-end infinite;
    vertical-align: middle;
}

@keyframes blink { 50% { opacity: 0; } }   

.container { max-width: 1120px; margin: 0 auto; padding: 0 var(--spacing-4); }
.grid { display: grid; gap: var(--spacing-5); }
.section { padding: var(--spacing-7) 0; position: relative; z-index: 1; }

ul { list-style: none; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; font-size: inherit; border: none; }

.section-title {
    font-size: var(--fs-3xl);
    text-align: center;
    margin-bottom: var(--spacing-6);
    position: relative;
    font-weight: 700;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--accent-gradient);
    border-radius: 2px;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* --- COMPONENTS --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    text-transform: uppercase;
    font-size: var(--fs-sm);
}
.btn-primary {
    background: var(--accent-gradient);
    color: var(--primary-color);
    box-shadow: 0 5px 20px -5px rgba(100, 255, 218, 0.4);
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px -8px rgba(100, 255, 218, 0.6);
}
.btn-secondary {
    background-color: transparent;
    color: var(--text-light);
    border: 2px solid var(--border-color);
}
.btn-secondary:hover {
    background-color: var(--secondary-color);
    border-color: var(--accent-color);
}

/* --- HEADER --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    transition: var(--transition);
}
.header.scrolled {
    background-color: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(15px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
body.light-mode .header.scrolled {
    background-color: rgba(255, 255, 255, 0.85);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}
.nav-brand {
    font-size: var(--fs-2xl);
    font-weight: 800;
    color: var(--accent-color);
}
.nav-brand span {
    font-weight: 300;
    color: var(--text-light);
}
.nav-menu {
    display: flex;
    align-items: center;
}
.nav-list {
    display: flex;
    gap: var(--spacing-5);
}
.nav-item { margin-left: var(--spacing-5); }
.nav-link {
    font-weight: 500;
    color: var(--text-medium);
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}
.nav-link:hover, .nav-link.active-link {
    color: var(--accent-color);
}
.nav-link.active-link {
    font-weight: 600;
}

.theme-toggle {
    background: none;
    cursor: pointer;
    font-size: var(--fs-xl);
    color: var(--text-light);
    margin-right: var(--spacing-5);
    transition: var(--transition);
}
.theme-toggle:hover {
    color: var(--accent-color);
    transform: rotate(10deg);
}

.nav-toggle {
    display: none;
    font-size: var(--fs-xl);
    color: var(--text-light);
    background: none;
    cursor: pointer;
}

@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--secondary-color);
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
        padding: var(--spacing-7) var(--spacing-5);
        transition: right 0.4s ease-in-out;
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
    }
    .nav-menu.open { right: 0; }
    .nav-list { flex-direction: column; gap: var(--spacing-4); }
    .nav-item { margin-left: 0; }
    .nav-link { font-size: var(--fs-lg); }
    .theme-toggle { margin-bottom: var(--spacing-5); }
}

/* --- HERO --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden; /* Important for canvas */
}
.hero-container {
    grid-template-columns: 1fr;
    align-items: center;
    text-align: center;
}
@media (min-width: 992px) {
    .hero-container {
        grid-template-columns: 1.2fr 1fr;
        text-align: left;
    }
}

/* Hero Canvas Background */
#hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0; /* Behind content */
}

.hero-content {
    position: relative;
    z-index: 1; /* Above canvas */
}

.availability-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(100, 255, 218, 0.1);
    border: 1px solid rgba(100, 255, 218, 0.3);
    border-radius: 50px;
    margin-bottom: var(--spacing-4);
    color: var(--accent-color);
    font-size: var(--fs-sm);
    font-weight: 500;
    font-family: 'Monospace', monospace;
}
.availability-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-color);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-color);
    animation: pulse-green 2s infinite;
}
@keyframes pulse-green {
    0% { box-shadow: 0 0 0 0 rgba(100, 255, 218, 0.7); }
    70% { box-shadow: 0 0 0 6px rgba(100, 255, 218, 0); }
    100% { box-shadow: 0 0 0 0 rgba(100, 255, 218, 0); }
}

.hero-intro {
    color: var(--accent-color);
    font-size: var(--fs-lg);
    font-family: 'Monospace', monospace;
    margin-bottom: var(--spacing-2);
}

.hero-title {
    font-size: var(--fs-5xl);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-2);
    color: var(--text-light);
}

.hero-subtitle {
    font-size: var(--fs-3xl);
    font-weight: 700;
    color: var(--text-medium);
    line-height: 1.1;
    margin-bottom: var(--spacing-4);
    height: 3rem;
}
.hero-subtitle::after {
    content: '█';
    color: var(--accent-color);
    animation: blink 1s step-end infinite;
}

.hero-description {
    max-width: 500px;
    margin: 0 auto var(--spacing-5);
    color: var(--text-medium);
}
@media (min-width: 992px) { .hero-description { margin-left: 0; } }

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-3);
    justify-content: center;
    margin-bottom: var(--spacing-5);
}
@media (min-width: 992px) { .hero-buttons { justify-content: flex-start; } }

.hero-social-bar {
    display: flex;
    gap: var(--spacing-4);
    margin-top: var(--spacing-4);
    justify-content: center;
}
@media (min-width: 992px) { .hero-social-bar { justify-content: flex-start; } }

.hero-social-link {
    color: var(--text-medium);
    font-size: 1.5rem;
    transition: var(--transition);
}
.hero-social-link:hover {
    color: var(--accent-color);
    transform: translateY(-3px);
}

.hero-image-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: var(--spacing-6);
    z-index: 1; /* Above canvas */
}
@media (min-width: 992px) { .hero-image-container { margin-top: 0; } }

.hero-image-blob {
    width: clamp(250px, 80%, 400px);
    aspect-ratio: 1;
    background: var(--accent-gradient);
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    animation: morph 8s ease-in-out infinite;
    display: flex;
    justify-content: center;
    align-items: center;
}
.hero-image {
    width: 90%;
    height: 90%;
    object-fit: cover;
    border-radius: inherit;
}
@keyframes morph {
    0% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
    50% { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
    100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
}

.hero-animated-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 20s linear infinite;
    opacity: 0.1;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* --- ABOUT --- */
.about { background-color: var(--secondary-color); }
.about-container {
    grid-template-columns: 1fr;
    align-items: flex-start;
}
@media (min-width: 992px) { .about-container { grid-template-columns: 1fr 1fr; } }

.about-subtitle {
    font-size: var(--fs-2xl);
    margin-bottom: var(--spacing-4);
    color: var(--text-light);
}
.about-description {
    color: var(--text-medium);
    margin-bottom: var(--spacing-3);
}
.about-quote {
    padding-left: var(--spacing-3);
    border-left: 3px solid var(--accent-color);
    color: var(--text-medium);
    font-style: italic;
    margin-bottom: var(--spacing-5);
}

/* --- TECH STACK --- */
.tech-stack { background-color: var(--background-color); }
.tech-stack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-4);
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}
.tech-item {
    padding: var(--spacing-4) var(--spacing-2);
    border-radius: var(--border-radius);
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: default;
}
.tech-item:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.3);
    border-color: var(--accent-color);
}
.tech-icon {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-2);
    transition: color 0.3s;
}
.tech-item:hover .tech-icon { color: var(--text-light); }
.tech-name {
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--text-light);
}

/* --- SERVICES --- */
.skills-grid { display: grid; gap: var(--spacing-4); }
.skill-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-2);
    font-weight: 500;
}
.skill-bar {
    height: 8px;
    background-color: var(--primary-color);
    border-radius: 5px;
}
.skill-progress {
    height: 100%;
    width: 0;
    background: var(--accent-gradient);
    border-radius: 5px;
    transition: width 1.5s ease-out;
}

.currency-selector-wrapper {
    text-align: center;
    margin-bottom: var(--spacing-5);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    background: var(--secondary-color);
    padding: 1rem;
    border-radius: 50px;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
    border: 1px solid var(--border-color);
}

.currency-label {
    color: var(--text-medium);
    font-size: var(--fs-sm);
    font-weight: 600;
}
.currency-options { display: flex; gap: 0.5rem; }

.currency-btn {
    background: transparent;
    color: var(--text-medium);
    border: 1px solid var(--border-color);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    font-size: 0.85rem;
}

.currency-btn.active, .currency-btn:hover {
    background: var(--accent-gradient);
    color: var(--primary-color);
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(100, 255, 218, 0.3);
}

.services-container, .projects-container {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
.card {
    background-color: var(--secondary-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-5);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px -10px rgba(0,0,0,0.4);
}

.discount-badge {
    position: absolute;
    top: 0;
    right: 0;
    background: linear-gradient(135deg, #ff5f56, #d62d20);
    color: white;
    padding: 0.4rem 1rem;
    border-bottom-left-radius: 15px;
    font-size: 0.75rem;
    font-weight: 800;
    box-shadow: -2px 2px 10px rgba(0,0,0,0.2);
    z-index: 2;
    letter-spacing: 0.5px;
}

.service-card-icon {
    font-size: var(--fs-3xl);
    margin-bottom: var(--spacing-3);
    color: var(--accent-color);
}
.card-title {
    font-size: var(--fs-xl);
    margin-bottom: var(--spacing-2);
    color: var(--text-light);
}
.card-description {
    color: var(--text-medium);
    font-size: var(--fs-sm);
    flex-grow: 1;
}

.price-container {
    margin-top: var(--spacing-4);
    padding-top: var(--spacing-3);
    border-top: 1px dashed var(--border-color);
    text-align: left;
}
.price-label {
    font-size: 0.75rem;
    color: var(--text-medium);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 0.25rem;
}
.price-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.original-price {
    text-decoration: line-through;
    color: var(--text-dark);
    font-size: 0.9rem;
}
.current-price {
    color: var(--accent-color);
    font-size: 1.5rem;
    font-weight: 800;
    text-shadow: 0 0 10px rgba(100, 255, 218, 0.1);
}
.price-period {
    font-size: 0.9rem;
    color: var(--text-medium);
    font-weight: 500;
}

/* --- PROJECTS --- */
.project-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-6);
}
.filter-btn {
    background-color: var(--secondary-color);
    color: var(--text-medium);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}
.filter-btn:hover {
    color: var(--text-light);
    background-color: #2c3a52;
}
.filter-btn.active {
    background: var(--accent-gradient);
    color: var(--primary-color);
}
.project-card .card-image {
    aspect-ratio: 16 / 9;
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: var(--spacing-4);
    position: relative;
}
.project-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* Ensure the top of the website (header) is visible */
    object-position: top center; 
    transition: transform 0.5s ease;
}
.project-card:hover img {
    transform: scale(1.1);
}

.project-card {
    border: none;
    background-color: var(--secondary-color);
    padding: 0; 
}
.project-content { padding: var(--spacing-4); }
.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-3);
}
.tag {
    background-color: var(--primary-color);
    color: var(--accent-color);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}
.project-links {
    display: flex;
    gap: var(--spacing-3);
    margin-top: var(--spacing-4);
    padding-top: var(--spacing-3);
    border-top: 1px solid var(--border-color);
}
.project-links a {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--text-medium);
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.9rem;
}
.project-links a:hover { color: var(--accent-color); }

/* --- CONTACT --- */
.contact { background-color: var(--secondary-color); }
.contact-container {
    grid-template-columns: 1fr;
    align-items: center;
}
@media (min-width: 992px) { .contact-container { grid-template-columns: 1fr 1.2fr; } }
.contact-title {
    font-size: var(--fs-2xl);
    margin-bottom: var(--spacing-3);
    color: var(--text-light);
}
.contact-description {
    color: var(--text-medium);
    margin-bottom: var(--spacing-5);
    max-width: 450px;
}
.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}
.contact-info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    color: var(--text-medium);
}
.contact-info-item i {
    color: var(--accent-color);
    font-size: var(--fs-lg);
}

.contact-form {
    background-color: var(--primary-color);
    padding: var(--spacing-6);
    border-radius: var(--border-radius);
}
.form-group {
    display: grid;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
    grid-template-columns: 1fr 1fr;
}
@media (max-width: 600px) { .form-group { grid-template-columns: 1fr; } }

.contact-form input, .contact-form textarea {
    width: 100%;
    background-color: var(--secondary-color);
    color: var(--text-light);
    padding: var(--spacing-3);
    border-radius: 0.5rem;
    border: 2px solid transparent;
    transition: var(--transition);
}
.contact-form input::placeholder, .contact-form textarea::placeholder {
    color: var(--text-dark);
}
.contact-form input:focus, .contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}
.contact-form input.error, .contact-form textarea.error {
    border-color: #ff5f56; 
    box-shadow: 0 0 5px rgba(255, 95, 86, 0.5);
}
.form-submit-btn { width: 100%; }

/* --- EXPANDED FOOTER --- */
.footer {
    background-color: var(--primary-color);
    padding: var(--spacing-6) 0;
    border-top: 1px solid var(--border-color);
}
.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-6); /* Increased gap */
    align-items: start;
}
.footer-title {
    font-size: var(--fs-lg);
    color: var(--accent-color);
    margin-bottom: var(--spacing-3);
    font-weight: 700;
}
.footer-subtitle {
    font-size: var(--fs-base);
    color: var(--text-light);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
}
.footer-description {
    color: var(--text-medium);
    font-size: var(--fs-sm);
    margin-bottom: var(--spacing-3);
    line-height: 1.6;
}
.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.footer-links a {
    color: var(--text-medium);
    transition: var(--transition);
    font-size: var(--fs-sm);
}
.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}
/* New Contact Column Styling */
.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    color: var(--text-medium);
    font-size: var(--fs-sm);
}
.footer-contact-item i {
    color: var(--accent-color);
    margin-top: 4px;
}
.footer-social-links {
    display: flex;
    gap: var(--spacing-4);
    margin-top: var(--spacing-2);
}
.footer-social-links a {
    font-size: var(--fs-xl);
    color: var(--text-medium);
    transition: var(--transition);
}
.footer-social-links a:hover {
    color: var(--accent-color);
    transform: translateY(-3px);
}
.footer-copyright {
    text-align: center;
    margin-top: var(--spacing-6);
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--border-color);
    color: var(--text-dark);
    font-size: var(--fs-sm);
}

/* --- MODAL --- */
.service-modal {
    position: fixed;
    inset: 0;
    background-color: rgba(11, 17, 32, 0.7);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}
.service-modal.open {
    opacity: 1;
    visibility: visible;
}
.modal-content {
    background-color: var(--secondary-color);
    padding: var(--spacing-6);
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 100%;
    position: relative;
    transform: scale(0.95);
    transition: transform 0.4s ease;
}
.service-modal.open .modal-content {
    transform: scale(1);
}
.modal-close-btn {
    position: absolute;
    top: var(--spacing-3);
    right: var(--spacing-3);
    background: none;
    color: var(--text-medium);
    font-size: var(--fs-2xl);
    cursor: pointer;
    transition: var(--transition);
}
.modal-close-btn:hover {
    color: var(--accent-color);
    transform: rotate(90deg);
}
#modal-body h3 {
    font-size: var(--fs-2xl);
    color: var(--accent-color);
    margin-bottom: var(--spacing-3);
}
#modal-body p {
    color: var(--text-medium);
    margin-bottom: var(--spacing-4);
}
#modal-body ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-5);
}
#modal-body li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-2);
    color: var(--text-medium);
}
#modal-body li i {
    color: var(--accent-color);
    margin-top: 5px;
}
.modal-buttons { display: flex; gap: var(--spacing-3); }

/* --- SCROLL REVEAL --- */
[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

/* --- EDUCATION --- */
.education { background-color: var(--background-color); }

.education-timeline {
    position: relative;
    max-width: 750px;
    margin: 0 auto;
    padding: var(--spacing-4) 0;
}

.education-timeline::after {
    content: '';
    position: absolute;
    width: 3px;
    background: var(--border-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -1.5px;
}

.timeline-item {
    padding: var(--spacing-3) var(--spacing-6);
    position: relative;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 50px; 
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 50px; 
}

.timeline-dot {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    background-color: var(--secondary-color);
    border: 4px solid var(--accent-color);
    top: 28px;
    border-radius: 50%;
    z-index: 1;
}

.timeline-item:nth-child(odd) .timeline-dot { right: -9px; }
.timeline-item:nth-child(even) .timeline-dot { left: -9px; }

.timeline-content {
    padding: var(--spacing-4);
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    position: relative;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px -8px rgba(0,0,0,0.3);
}

.timeline-content::before {
    content: " ";
    height: 0;
    position: absolute;
    top: 22px;
    width: 0;
    z-index: 1;
    border: medium solid var(--border-color);
}

.timeline-item:nth-child(odd) .timeline-content::before {
    right: -11px;
    border-width: 10px 0 10px 10px;
    border-color: transparent transparent transparent var(--border-color);
}

.timeline-item:nth-child(even) .timeline-content::before {
    left: -11px;
    border-width: 10px 10px 10px 0;
    border-color: transparent var(--border-color) transparent transparent;
}

.timeline-date {
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: var(--spacing-2);
}

.timeline-title {
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: var(--spacing-1);
}

.timeline-university {
    font-size: var(--fs-sm);
    color: var(--text-medium);
    margin-bottom: var(--spacing-3);
}

.timeline-status {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--fs-sm);
    font-weight: 500;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: 50px;
}

.timeline-content.ongoing { border-left: 4px solid #f59e0b; }
.timeline-content.ongoing .timeline-status { background-color: rgba(245, 158, 11, 0.1); color: #f59e0b; }

.timeline-content.completed { border-left: 4px solid var(--accent-color); }
.timeline-content.completed .timeline-status { background-color: rgba(100, 255, 218, 0.1); color: var(--accent-color); }

.timeline-score {
    margin-top: 10px;
    font-size: 14px;
    font-weight: 500;
    color: var(--accent-color);
    display: flex;
    align-items: center;
    gap: 5px;
}

.timeline-score::before {
    content: '\f091';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: 14px;
    color: var(--accent-color);
    margin-right: 5px;
}

.completed .timeline-score { border-top: 1px solid var(--border-color); padding-top: 10px; }

/* --- CERTIFICATIONS GRID --- */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-4);
    margin-top: var(--spacing-6);
}

.certification-card {
    background-color: var(--secondary-color);
    padding: var(--spacing-4);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
}

.certification-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
    border-color: var(--accent-color);
}

.cert-icon {
    color: var(--accent-color);
    font-size: 1.5rem;
    background: rgba(100, 255, 218, 0.1);
    padding: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.cert-details h4 {
    font-size: var(--fs-base);
    color: var(--text-light);
    margin-bottom: 4px;
    font-weight: 600;
}

.cert-details p {
    font-size: var(--fs-sm);
    color: var(--text-medium);
    margin-bottom: 8px;
}

.cert-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.75rem;
    color: var(--text-dark);
}
   
.blinking-tag {
    font-weight: 600;
    color: var(--accent-color);
    animation: pulse-glow 2s infinite ease-in-out;
}

@keyframes pulse-glow {
    0% { text-shadow: 0 0 4px rgba(100, 255, 218, 0.3); opacity: 0.8; }
    50% { text-shadow: 0 0 12px rgba(100, 255, 218, 0.8); opacity: 1; }
    100% { text-shadow: 0 0 4px rgba(100, 255, 218, 0.3); opacity: 0.8; }
}

body.light-mode .blinking-tag {
    color: var(--lm-accent-color);
    animation-name: pulse-glow-light;
}

@keyframes pulse-glow-light {
    0% { text-shadow: 0 0 4px rgba(0, 123, 255, 0.3); opacity: 0.8; }
    50% { text-shadow: 0 0 12px rgba(0, 123, 255, 0.7); opacity: 1; }
    100% { text-shadow: 0 0 4px rgba(0, 123, 255, 0.3); opacity: 0.8; }
}

@media screen and (max-width: 768px) {
    .education-timeline::after { left: 20px; }
    .timeline-item { width: 100%; padding-left: 50px; padding-right: 0; }
    .timeline-item:nth-child(odd), .timeline-item:nth-child(even) { left: 0; }
    .timeline-dot { left: 11px; }
    .timeline-item:nth-child(odd) .timeline-dot, .timeline-item:nth-child(even) .timeline-dot { left: 11px; }
    .timeline-content::before { left: -11px; border-width: 10px 10px 10px 0; border-color: transparent var(--border-color) transparent transparent; }
    .timeline-item:nth-child(odd) .timeline-content::before, .timeline-item:nth-child(even) .timeline-content::before { left: -11px; border-width: 10px 10px 10px 0; border-color: transparent var(--border-color) transparent transparent; }
}

/* --- FLOATING BUTTONS --- */
.fab-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 999;
}

.fab-btn {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.5s forwards;
}

.fab-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.fab-whatsapp {
    background-color: #25D366;
    animation-delay: 1s;
}
.fab-whatsapp:hover { background-color: #1fa850; }

.fab-scroll-top {
    background-color: var(--accent-color);
    color: var(--primary-color);
    display: none;
}

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

.fab-whatsapp::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: #25D366;
    border-radius: 50%;
    z-index: -1;
    opacity: 0.7;
    animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
    0% { transform: scale(1); opacity: 0.7; }
    100% { transform: scale(1.5); opacity: 0; }
}