/* ==========================================================================
   DESIGN SYSTEM & CUSTOM PROPERTIES
   ========================================================================== */
:root {
    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Transition Speeds */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-slow: 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
    
    /* Layout */
    --container-max-width: 1200px;
    --header-height: 80px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --border-radius-full: 9999px;
}

/* --- Dark Theme Variables (Default) --- */
.dark-theme {
    --bg-base: hsl(224, 71%, 4%);
    --bg-surface: hsla(224, 60%, 8%, 0.7);
    --bg-surface-hover: hsla(224, 60%, 12%, 0.85);
    
    --color-text-primary: hsl(0, 0%, 96%);
    --color-text-secondary: hsl(220, 14%, 72%);
    --color-text-muted: hsl(220, 10%, 55%);
    
    --color-primary: hsl(250, 85%, 65%);
    --color-primary-light: hsl(250, 95%, 75%);
    --color-primary-dark: hsl(250, 75%, 50%);
    --color-secondary: hsl(190, 90%, 50%);
    
    --border-color: hsla(220, 40%, 20%, 0.4);
    --border-color-glow: hsla(250, 85%, 65%, 0.25);
    --glass-bg: hsla(224, 60%, 8%, 0.45);
    --glass-border: hsla(220, 30%, 96%, 0.08);
    --glass-shadow: rgba(0, 0, 0, 0.35);
    
    --blob-1-color: hsla(250, 85%, 65%, 0.15);
    --blob-2-color: hsla(190, 90%, 50%, 0.12);
    --blob-3-color: hsla(290, 80%, 60%, 0.12);
}

/* --- Light Theme Variables --- */
.light-theme {
    --bg-base: hsl(220, 30%, 96%);
    --bg-surface: hsla(220, 40%, 100%, 0.75);
    --bg-surface-hover: hsla(220, 40%, 98%, 0.9);
    
    --color-text-primary: hsl(224, 60%, 12%);
    --color-text-secondary: hsl(220, 14%, 35%);
    --color-text-muted: hsl(220, 10%, 50%);
    
    --color-primary: hsl(250, 80%, 55%);
    --color-primary-light: hsl(250, 90%, 65%);
    --color-primary-dark: hsl(250, 80%, 40%);
    --color-secondary: hsl(190, 85%, 40%);
    
    --border-color: hsla(220, 20%, 85%, 0.6);
    --border-color-glow: hsla(250, 80%, 55%, 0.15);
    --glass-bg: hsla(220, 40%, 100%, 0.6);
    --glass-border: hsla(220, 30%, 10%, 0.06);
    --glass-shadow: rgba(31, 38, 135, 0.08);
    
    --blob-1-color: hsla(250, 85%, 65%, 0.08);
    --blob-2-color: hsla(190, 90%, 50%, 0.06);
    --blob-3-color: hsla(290, 80%, 60%, 0.06);
}

/* ==========================================================================
   BASE & RESET
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-base);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-slow), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-text-primary);
    line-height: 1.2;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

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

button, input, textarea {
    font-family: inherit;
    font-size: inherit;
    background: none;
    border: none;
    outline: none;
}

/* ==========================================================================
   LAYOUT UTILITIES
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 100px 0;
    position: relative;
    z-index: 10;
}

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

/* ==========================================================================
   BACKGROUND ANIMATION (BLOBS)
   ========================================================================== */
.blob-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    border-radius: var(--border-radius-full);
    filter: blur(120px);
    mix-blend-mode: normal;
    opacity: 0.8;
    transition: background-color var(--transition-slow);
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background-color: var(--blob-1-color);
    animation: floatBlob1 25s infinite alternate ease-in-out;
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background-color: var(--blob-2-color);
    animation: floatBlob2 30s infinite alternate ease-in-out;
}

.blob-3 {
    top: 40%;
    left: 50%;
    width: 40vw;
    height: 40vw;
    background-color: var(--blob-3-color);
    animation: floatBlob3 28s infinite alternate ease-in-out;
}

@keyframes floatBlob1 {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(15%, 10%) scale(1.1); }
}

@keyframes floatBlob2 {
    0% { transform: translate(0, 0) scale(1.1); }
    100% { transform: translate(-15%, -10%) scale(0.9); }
}

@keyframes floatBlob3 {
    0% { transform: translate(0, 0) scale(0.9); }
    100% { transform: translate(-10%, 15%) scale(1.15); }
}

/* ==========================================================================
   GLASSMORPHISM BASE STYLE
   ========================================================================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    box-shadow: 0 8px 32px 0 var(--glass-shadow);
    transition: transform var(--transition-normal), 
                box-shadow var(--transition-normal), 
                border-color var(--transition-normal),
                background-color var(--transition-normal);
}

.glass-card:hover {
    border-color: var(--border-color-glow);
    box-shadow: 0 12px 40px 0 var(--border-color-glow);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--border-radius-full);
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

.btn:active {
    transform: scale(0.96);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: hsl(0, 0%, 100%);
    box-shadow: 0 4px 15px rgba(250, 85, 65, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    box-shadow: 0 6px 20px rgba(250, 85, 65, 0.45);
}

.btn-secondary {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--color-text-primary);
}

.btn-secondary:hover {
    background: var(--bg-surface-hover);
    border-color: var(--color-primary);
}

.btn-icon {
    gap: 8px;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 100;
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.main-header.scrolled {
    background: var(--bg-surface);
    height: 70px;
}

.header-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-text-primary);
}

.logo-accent {
    color: var(--color-primary);
}

.nav-list {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    position: relative;
    padding: 8px 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-primary);
}

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

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Theme Switcher */
.theme-toggle {
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius-full);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--color-text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.theme-toggle:hover {
    transform: rotate(15deg) scale(1.05);
    background: var(--bg-surface-hover);
}

.theme-icon-light {
    display: none;
}

.light-theme .theme-icon-dark {
    display: none;
}

.light-theme .theme-icon-light {
    display: block;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
}

.mobile-nav-toggle .bar {
    width: 100%;
    height: 3px;
    background-color: var(--color-text-primary);
    border-radius: 2px;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: calc(var(--header-height) + 40px);
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-subtitle {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 8px;
    letter-spacing: -1px;
}

.highlight {
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-dynamic-text {
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 24px;
    height: 48px;
}

.cursor {
    border-left: 3px solid var(--color-primary);
    animation: cursorBlink 0.8s infinite;
}

@keyframes cursorBlink {
    0%, 100% { border-color: transparent; }
    50% { border-color: var(--color-primary); }
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 36px;
    max-width: 580px;
}

.hero-cta {
    display: flex;
    gap: 16px;
}

/* Hero Profile Card Visual */
.hero-visual {
    display: flex;
    justify-content: center;
}

.profile-card-wrapper {
    position: relative;
}

.profile-card-wrapper::before {
    content: '';
    position: absolute;
    inset: -15px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--border-radius-lg);
    z-index: -1;
    filter: blur(25px);
    opacity: 0.45;
}

.profile-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 36px;
    width: 320px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.profile-avatar {
    width: 110px;
    height: 110px;
    border-radius: var(--border-radius-full);
    background: linear-gradient(135deg, rgba(250, 85, 65, 0.1), rgba(190, 85, 65, 0.05));
    border: 2px solid var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    box-shadow: 0 0 20px var(--border-color-glow);
}

.avatar-icon {
    font-size: 3rem;
    color: var(--color-primary);
}

.profile-details {
    margin-bottom: 24px;
}

.profile-badge {
    background: var(--color-primary-dark);
    color: hsl(0, 0%, 100%);
    padding: 6px 16px;
    border-radius: var(--border-radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    display: inline-block;
    margin-bottom: 12px;
}

.profile-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: var(--border-radius-full);
    background-color: #10b981;
}

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

@keyframes indicatorPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: .4; transform: scale(1.2); }
}

.profile-tech-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}

.tech-tag {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    padding: 6px 12px;
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.mouse {
    width: 26px;
    height: 44px;
    border: 2px solid var(--color-text-secondary);
    border-radius: 13px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background-color: var(--color-primary);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: wheelScroll 1.8s infinite;
}

@keyframes wheelScroll {
    0% { opacity: 0; top: 8px; }
    30% { opacity: 1; }
    80% { opacity: 0; top: 22px; }
    100% { opacity: 0; }
}

.arrows {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 8px;
}

.arrows span {
    display: block;
    width: 8px;
    height: 8px;
    border-bottom: 2px solid var(--color-text-secondary);
    border-right: 2px solid var(--color-text-secondary);
    transform: rotate(45deg);
    margin: -3px;
    animation: arrowScroll 1.8s infinite;
}

.arrows span:nth-child(2) {
    animation-delay: 0.2s;
}

@keyframes arrowScroll {
    0% { opacity: 0; transform: rotate(45deg) translate(-5px, -5px); }
    50% { opacity: 1; }
    100% { opacity: 0; transform: rotate(45deg) translate(5px, 5px); }
}

/* ==========================================================================
   SECTION HEADER
   ========================================================================== */
.section-header {
    margin-bottom: 60px;
}

.section-subtitle {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    display: block;
    margin-bottom: 10px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
}

.section-underline {
    width: 60px;
    height: 4px;
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    border-radius: var(--border-radius-full);
    margin: 16px auto 0 auto;
}

/* ==========================================================================
   ABOUT SECTION
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: stretch;
}

.about-info-card {
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.about-heading {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.about-info-card p {
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

.personal-details {
    width: 100%;
    margin: 10px 0 30px 0;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.detail-label {
    font-weight: 600;
    color: var(--color-text-primary);
}

.detail-value {
    color: var(--color-text-secondary);
}

.about-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.stat-card {
    padding: 30px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.stat-icon {
    font-size: 2.2rem;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.stat-number {
    font-size: 2.5rem;
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--color-text-primary);
    margin-bottom: 6px;
}

.stat-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

/* ==========================================================================
   SKILLS SECTION
   ========================================================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.skills-category-card {
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.category-icon-wrapper {
    width: 70px;
    height: 70px;
    border-radius: var(--border-radius-full);
    background: rgba(250, 85, 65, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.category-icon {
    font-size: 2rem;
    color: var(--color-primary);
}

.category-title {
    font-size: 1.4rem;
    margin-bottom: 30px;
    font-family: var(--font-heading);
    font-weight: 700;
}

.skills-list {
    width: 100%;
}

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

.skill-item:last-child {
    margin-bottom: 0;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
}

.skill-bar-container {
    width: 100%;
    height: 8px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-full);
    overflow: hidden;
}

.light-theme .skill-bar-container {
    background-color: rgba(0, 0, 0, 0.05);
}

.skill-bar {
    height: 100%;
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    border-radius: var(--border-radius-full);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 1.5s cubic-bezier(0.1, 0.8, 0.1, 1);
}

.skills-section.active .skill-bar {
    transform: scaleX(1);
}

/* ==========================================================================
   PROJECTS SECTION
   ========================================================================== */
.project-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 50px;
}

.filter-btn {
    padding: 10px 24px;
    border-radius: var(--border-radius-full);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--color-text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--color-primary);
    color: hsl(0, 0%, 100%);
    border-color: var(--color-primary);
    box-shadow: 0 4px 15px rgba(250, 85, 65, 0.35);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.project-card {
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
}

.project-img-container {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.project-card:hover .project-img {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(4, 8, 17, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-links {
    display: flex;
    gap: 16px;
}

.project-link {
    width: 50px;
    height: 50px;
    border-radius: var(--border-radius-full);
    background-color: var(--color-primary);
    color: hsl(0, 0%, 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.project-link:hover {
    transform: scale(1.1);
    background-color: var(--color-primary-light);
}

.project-info {
    padding: 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-tag {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
    display: inline-block;
}

.project-title {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.project-description {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 24px;
    flex-grow: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-tech span {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    padding: 4px 10px;
    border-radius: var(--border-radius-sm);
}

.light-theme .project-tech span {
    background: rgba(0, 0, 0, 0.03);
}

/* For JavaScript project filtration animation */
.project-card.fade-out {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.project-card.fade-in {
    opacity: 1;
    transform: scale(1);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

/* ==========================================================================
   EXPERIENCE & EDUCATION
   ========================================================================== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 31px;
    width: 2px;
    height: 100%;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    padding-left: 70px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: 20px;
    top: 8px;
    width: 24px;
    height: 24px;
    border-radius: var(--border-radius-full);
    background-color: var(--bg-base);
    border: 4px solid var(--color-primary);
    box-shadow: 0 0 10px var(--border-color-glow);
    z-index: 5;
    transition: transform var(--transition-fast);
}

.timeline-item:hover .timeline-dot {
    transform: scale(1.2);
}

.timeline-date {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.timeline-content {
    padding: 30px;
}

.timeline-tag {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-secondary);
    display: inline-block;
    margin-bottom: 8px;
}

.timeline-tag.education {
    color: var(--color-primary);
}

.timeline-title {
    font-size: 1.3rem;
    margin-bottom: 4px;
}

.timeline-subtitle {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

.timeline-desc {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 40px;
}

.contact-info-wrapper {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.contact-heading {
    font-size: 1.8rem;
    margin-bottom: 16px;
}

.contact-subtext {
    color: var(--color-text-secondary);
    margin-bottom: 40px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.contact-method-card {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-method-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--border-radius-full);
    background: rgba(250, 85, 65, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-method-details span {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-muted);
    display: block;
}

.contact-method-details a, .contact-method-details p {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.contact-method-details a:hover {
    color: var(--color-primary);
}

.social-links-wrapper span {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    display: block;
    margin-bottom: 12px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius-full);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all var(--transition-fast);
}

.social-link:hover {
    transform: translateY(-3px);
    color: hsl(0, 0%, 100%);
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(250, 85, 65, 0.35);
}

/* Contact Form */
.contact-form-wrapper {
    padding: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.input-icon {
    position: absolute;
    left: 18px;
    color: var(--color-text-muted);
    font-size: 0.95rem;
    pointer-events: none;
}

.contact-form input, .contact-form textarea {
    width: 100%;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    color: var(--color-text-primary);
    padding: 14px 20px 14px 46px;
    font-size: 0.95rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.light-theme .contact-form input, .light-theme .contact-form textarea {
    background-color: rgba(0, 0, 0, 0.01);
}

.contact-form textarea {
    padding-left: 20px;
    resize: none;
}

.contact-form input:focus, .contact-form textarea:focus {
    border-color: var(--color-primary);
    background-color: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 10px rgba(250, 85, 65, 0.15);
}

.light-theme .contact-form input:focus, .light-theme .contact-form textarea:focus {
    background-color: rgba(0, 0, 0, 0.005);
}

/* Validation Styles */
.form-group.invalid input, .form-group.invalid textarea {
    border-color: #ef4444 !important;
    background-color: rgba(239, 68, 68, 0.02) !important;
}

.error-message {
    font-size: 0.8rem;
    color: #ef4444;
    display: none;
    font-weight: 500;
}

.form-group.invalid .error-message {
    display: block;
}

/* Spinner and feedback */
.spinner {
    font-size: 1.1rem;
}

.hidden {
    display: none !important;
}

.form-feedback {
    padding: 12px;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
    margin-top: 10px;
}

.form-feedback.success {
    background-color: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-feedback.error {
    background-color: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.main-footer {
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
    position: relative;
    z-index: 10;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.footer-tagline {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

.footer-divider {
    width: 80px;
    height: 1px;
    background-color: var(--border-color);
    margin: 0 auto 24px auto;
}

.copyright {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 1024px) {
    .container {
        padding: 0 32px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-dynamic-text {
        height: auto;
        margin-bottom: 16px;
    }
    
    .hero-description {
        margin: 0 auto 30px auto;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }
    
    section {
        padding: 70px 0;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-dynamic-text {
        font-size: 1.6rem;
    }
    
    /* Header & Mobile Menu */
    .mobile-nav-toggle {
        display: flex;
    }
    
    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: 0;
        background-color: var(--bg-surface);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        overflow: hidden;
        transition: height var(--transition-normal);
        border-bottom: 1px solid transparent;
    }
    
    .main-nav.active {
        height: calc(100vh - var(--header-height));
        border-bottom-color: var(--glass-border);
    }
    
    .nav-list {
        flex-direction: column;
        align-items: center;
        padding-top: 60px;
        gap: 30px;
    }
    
    .nav-link {
        font-size: 1.2rem;
    }
    
    /* Mobile nav animation toggle */
    .mobile-nav-toggle.active .bar:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }
    .mobile-nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    .mobile-nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    /* Skills Mobile */
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    /* Projects Mobile */
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    /* Timeline Mobile */
    .timeline::before {
        left: 15px;
    }
    
    .timeline-item {
        padding-left: 45px;
    }
    
    .timeline-dot {
        left: 4px;
        width: 20px;
        height: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .profile-card {
        width: 100%;
        padding: 24px;
    }
    
    .about-info-card {
        padding: 24px;
    }
    
    .about-stats-grid {
        grid-template-columns: 1fr;
    }
    
    .project-filters {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .contact-info-wrapper, .contact-form-wrapper {
        padding: 24px;
    }
}