:root {
    /* New elegant dark palette: teal + indigo */
    --primary: #22d3ee;
    /* teal-400 */
    --primary-dark: #0891b2;
    /* cyan-700 */
    --secondary: #818cf8;
    /* indigo-400 */
    --accent: #f0abfc;
    /* fuchsia-300 */
    --dark: #0a0f1a;
    /* softer obsidian */
    --darker: #070b13;
    --light: #e5eef8;
    --gray: #7b8aa3;
    --gray-light: #a2b2c7;
    --success: #10b981;
    --card-bg: #0f172a;
    --card-border: rgba(148, 163, 184, 0.15);
    --glass: rgba(7, 11, 19, 0.6);
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Light theme tokens */
:root[data-theme="light"] {
    --dark: #f5f7fb;
    --darker: #eef2f7;
    --light: #101828;
    --gray: #4b5563;
    --gray-light: #667085;
    --card-bg: #ffffff;
    --card-border: rgba(2, 6, 23, 0.08);
    --glass: rgba(255, 255, 255, 0.72);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--light);
    line-height: 1.6;
    background:
        radial-gradient(1200px 600px at 20% -10%, rgba(124, 58, 237, 0.15), transparent 40%),
        radial-gradient(1000px 500px at 80% 10%, rgba(6, 182, 212, 0.12), transparent 45%),
        linear-gradient(135deg, var(--darker) 0%, var(--dark) 100%);
    overflow-x: hidden;
}

/* Accessibility helpers */
.skip-link {
    position: absolute;
    left: -999px;
    top: 10px;
    background: var(--primary);
    color: #fff;
    padding: 10px 16px;
    border-radius: 8px;
    z-index: 10000;
}

.skip-link:focus {
    left: 10px;
}

:focus-visible {
    outline: 3px solid var(--secondary);
    outline-offset: 3px;
}

h1,
h2,
h3,
h4 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    background: linear-gradient(to right, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    animation: fadeInUp 1s ease;
}

h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    position: relative;
    display: inline-block;
    margin-bottom: 3rem;
}

h2:after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    border-radius: 2px;
}

h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

p {
    margin-bottom: 1.5rem;
    color: var(--gray-light);
    font-size: clamp(1rem, 2.5vw, 1.2rem);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
    position: relative;
    overflow: hidden;
    z-index: 1;
    font-size: clamp(0.9rem, 2vw, 1rem);
}

.btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0%;
    height: 100%;
    background: linear-gradient(135deg, var(--secondary) 0%, #db2777 100%);
    transition: var(--transition);
    z-index: -1;
}

.btn:hover:before {
    width: 100%;
}

.btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(79, 70, 229, 0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    box-shadow: none;
}

.btn-outline:before {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.btn-outline:hover {
    color: white;
}

section {
    padding: 80px 0;
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 1s ease, transform 1s ease;
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.text-center h2:after {
    left: 50%;
    transform: translateX(-50%);
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--glass);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 40px rgba(2, 6, 23, 0.45);
    padding: 14px 0;
    transition: var(--transition);
}

header.scrolled {
    padding: 10px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-primary {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: 10px;
}

.theme-toggle {
    background: transparent;
    border: 0;
    color: var(--light);
    font-size: 1.1rem;
    margin-right: 10px;
    cursor: pointer;
    transition: var(--transition);
}

.theme-toggle:hover {
    color: var(--primary);
}

.logo {
    font-family: 'Poppins', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--light);
    text-decoration: none;
}

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

.nav-menu {
    display: flex;
    list-style: none;
}

.nav-menu li {
    margin-left: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--light);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--primary);
}

.nav-menu a:hover:after {
    width: 100%;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger {
    background: transparent;
    border: 0;
    color: var(--light);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    isolation: isolate;
    padding-top: 80px;
    /* avoid overlap with fixed header */
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    align-items: center;
    gap: 40px;
}

.hero-visual {
    position: relative;
    min-height: 260px;
    pointer-events: none;
    /* prevent overlay blocking form inputs */
    order: -1;
}

/* Developer illustration replacing abstract orbs */
.dev-illustration {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Code Window */
.code-window {
    width: 100%;
    max-width: 520px;
    /* Never grow larger than this */
    min-height: 200px;
    /* Keep consistent height */
    margin: 20px auto;
    /* Add breathing space */
    padding: 12px;
    /* Prevent touching edges */
    overflow: none;
    /* Stop content overflow */
    box-sizing: border-box;
}

.code-window-header {
    display: flex;
    gap: 8px;
    padding: 10px 12px;
    background: rgba(148, 163, 184, 0.06);
    border-bottom: 1px solid var(--card-border);
}

.code-window-header .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.code-window-header .dot.red {
    background: #ef4444;
}

.code-window-header .dot.yellow {
    background: #f59e0b;
}

.code-window-header .dot.green {
    background: #10b981;
}

.code-lines {
    padding: 16px 20px;
    /* Add left/right padding */
    margin: 0 auto;
    width: 100%;
    max-width: 480px;
    /* Keep lines contained */
}

/* Code lines shimmer effect */
.code-line {
    height: 10px;
    border-radius: 5px;
    margin: 8px 0;
    background: rgba(148, 163, 184, 0.18);
}

.code-line.short {
    width: 35%;
}

.code-line.medium {
    width: 60%;
}

.code-line.long {
    width: 85%;
}

.code-line:not(.short):not(.medium):not(.long) {
    width: 72%;
}

/* Typing cursor */
.cursor {
    position: absolute;
    width: 3px;
    height: 18px;
    background: var(--primary);
    animation: blink 1s step-end infinite;
    left: 20px;
    top: 22px;
    border-radius: 2px;
}

/* Modern animations */
@keyframes blink {
    50% {
        opacity: 0;
    }
}

@keyframes shimmer-slide {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

/* Responsive code window */
@media (max-width: 768px) {
    .code-window {
        max-width: 95%;
        min-height: 180px;
        padding: 10px;
        margin: 15px auto;
    }

    .code-lines {
        padding: 12px 15px;
        max-width: 100%;
    }

    .code-line {
        height: 8px;
        margin: 6px 0;
    }
}



.stack-icons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}

.stack-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.15), rgba(236, 72, 153, 0.15));
    border: 1px solid var(--card-border);
    color: var(--light);
    box-shadow: 0 10px 25px rgba(2, 6, 23, 0.35);
    font-size: 1.2rem;
}

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

@keyframes shimmer {
    0% {
        filter: brightness(1);
    }

    50% {
        filter: brightness(1.25);
    }

    100% {
        filter: brightness(1);
    }
}

.tech-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.chip {
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.8rem;
    color: var(--light);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--card-border);
    box-shadow: 0 4px 12px rgba(2, 6, 23, 0.25);
}

/* Parallax decorative layers */
.parallax-layer {
    position: absolute;
    inset: -20%;
    pointer-events: none;
    z-index: -1;
    background-repeat: no-repeat;
    background-size: 50% 50%, 60% 60%;
    opacity: 0.18;
}

.layer-1 {
    background-image: radial-gradient(circle at 20% 30%, var(--primary) 0%, transparent 50%);
}

.layer-2 {
    background-image: radial-gradient(circle at 70% 20%, var(--secondary) 0%, transparent 50%);
}

.layer-3 {
    background-image: radial-gradient(circle at 80% 70%, var(--accent) 0%, transparent 50%);
    opacity: 0.12;
}

.hero-content {
    max-width: 650px;
    z-index: 1;
    text-align: center;
    margin: 0 auto;
}

.hero h1 {
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease;
}

.hero p {
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease 0.2s;
    animation-fill-mode: both;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    animation: fadeInUp 1s ease 0.4s;
    animation-fill-mode: both;
}

.scroll-indicator {
    position: absolute;
    left: 50%;
    bottom: 30px;
    transform: translateX(-50%);
    width: 26px;
    height: 46px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-radius: 20px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 6px;
    opacity: 0.8;
}

.scroll-indicator:after {
    content: '';
    width: 4px;
    height: 10px;
    background: linear-gradient(180deg, var(--secondary), var(--primary));
    border-radius: 2px;
    animation: scroll-bounce 1.6s ease-in-out infinite;
}

.floating-element {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, var(--primary) 0%, var(--secondary) 70%);
    opacity: 0.18;
    filter: blur(50px);
    z-index: -1;
    animation: float 15s infinite ease-in-out;
}

.floating-element:nth-child(1) {
    width: 300px;
    height: 300px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    width: 200px;
    height: 200px;
    top: 60%;
    left: 5%;
    animation-delay: 2s;
}

.floating-element:nth-child(3) {
    width: 250px;
    height: 250px;
    top: 30%;
    right: 15%;
    animation-delay: 4s;
}

/* Improve body/theme transitions */
body,
header,
.skill-card,
.project-card,
.contact-form,
.blog-card,
.client-card,
.footer-links a,
.nav-menu a,
.btn,
.btn-outline {
    transition: var(--transition);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.skill-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid var(--card-border);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.skill-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
    transition: var(--transition);
    z-index: -1;
}

.skill-card:hover:before {
    width: 100%;
    opacity: 0.1;
}

.skill-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.skill-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin: 0 0 20px 0;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
}

.skill-card:hover .skill-icon {
    color: var(--secondary);
}

/* Prevent layout shift on hover by reserving space */
.skill-card h3 {
    margin-top: 0;
}

.skill-card p {
    margin-top: 8px;
}

/* Projects Section */
.projects {
    background: linear-gradient(135deg, var(--darker) 0%, var(--dark) 100%);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.project-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
    border: 1px solid var(--card-border);
}

.project-card:hover {
    transform: translateY(-10px) rotate(2deg);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.project-img {
    height: 200px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

.project-img:after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(99, 102, 241, 0.8), rgba(236, 72, 153, 0.8));
    opacity: 0.8;
}

.project-content {
    padding: 25px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 15px 0;
}

.project-tag {
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

/* Clients Section */
.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.client-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    border: 1px solid var(--card-border);
}

.client-card:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.client-logo {
    font-size: 2rem;
    color: var(--primary);
    transition: var(--transition);
}

.client-card:hover .client-logo {
    color: var(--secondary);
    transform: scale(1.2);
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, var(--darker) 0%, var(--dark) 100%);
}

.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
    margin-top: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 15px;
    transition: var(--transition);
    border: 1px solid var(--card-border);
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.contact-form {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 20px 50px rgba(2, 6, 23, 0.35);
    border: 1px solid var(--card-border);
    position: relative;
    overflow: hidden;
}

.contact-form:before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 1px;
    border-radius: 15px;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.35), rgba(6, 182, 212, 0.35));
    -webkit-mask:
        linear-gradient(#000 0 0) content-box,
        linear-gradient(#000 0 0);
    mask:
        linear-gradient(#000 0 0) content-box,
        linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--light);
}

.form-control {
    width: 100%;
    padding: 14px 15px;
    border: 1px solid var(--card-border);
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    transition: var(--transition);
    background: rgba(2, 6, 23, 0.35);
    color: var(--light);
}

.form-control:focus {
    /* outline: none; */
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.25);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

/* Light mode form improvements */
:root[data-theme="light"] .form-control {
    background: #ffffff;
    color: #101828;
}

/* Change text colors of form input field when mode are dark */
:root[data-theme="dark"] .form-control:focus {
    background: #101828;
}

:root[data-theme="light"] .form-control::placeholder {
    color: #98a2b3;
}

:root[data-theme="light"] .contact-form {
    background: #ffffff;
    border-color: rgba(2, 6, 23, 0.08);
    box-shadow: 0 12px 30px rgba(16, 24, 40, 0.08);
}

/* Light mode contrast tuning */
:root[data-theme="light"] body {
    background:
        radial-gradient(1200px 600px at 20% -10%, rgba(99, 102, 241, 0.08), transparent 40%),
        radial-gradient(1000px 500px at 80% 10%, rgba(6, 182, 212, 0.08), transparent 45%),
        linear-gradient(135deg, var(--darker) 0%, var(--dark) 100%);
}

:root[data-theme="light"] p {
    color: #475467;
}

:root[data-theme="light"] .nav-menu a {
    color: #101828;
}

:root[data-theme="light"] .nav-menu a:hover {
    color: var(--primary);
}

:root[data-theme="light"] header {
    background: rgba(255, 255, 255, 0.72);
    box-shadow: 0 6px 30px rgba(16, 24, 40, 0.08);
}

:root[data-theme="light"] .chip {
    background: rgba(2, 6, 23, 0.04);
    color: #101828;
    border-color: rgba(2, 6, 23, 0.08);
}

:root[data-theme="light"] .project-tag {
    background: rgba(99, 102, 241, 0.12);
    border-color: rgba(99, 102, 241, 0.25);
    color: #475467;
}

/* Blog Section */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.blog-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
    border: 1px solid var(--card-border);
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.blog-img {
    height: 200px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

.blog-img:after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(99, 102, 241, 0.8), rgba(236, 72, 153, 0.8));
    opacity: 0.8;
}

.blog-content {
    padding: 25px;
}

.blog-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 10px;
    font-size: 0.9rem;
    color: var(--gray-light);
}

/* Footer */
footer {
    background: var(--darker);
    color: white;
    padding: 60px 0 30px;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h3 {
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.footer-col h3:after {
    display: none;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--gray-light);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
    margin-left: 5px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    transform: translateY(-5px);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--card-border);
    color: var(--gray-light);
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

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

@keyframes float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-20px) rotate(10deg);
    }
}

@keyframes spin {
    from {
        transform: rotate(0);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes scroll-bounce {
    0% {
        transform: translateY(0);
        opacity: 1;
    }

    60% {
        transform: translateY(14px);
        opacity: 0.1;
    }

    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }

    section {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* Responsive Styles - Tablet */
@media (min-width: 768px) {
    .hero-grid {
        grid-template-columns: 1.1fr 0.9fr;
        gap: 40px;
    }

    .hero-content {
        text-align: left;
    }

    .hero-buttons {
        justify-content: flex-start;
    }

    .hero-visual {
        order: 1;
        min-height: 360px;
    }

    .stack-icons {
        position: absolute;
        right: -10px;
        top: 50%;
        transform: translateY(-50%);
        flex-direction: column;
        justify-content: center;
        margin-top: 0;
    }

    .tech-badges {
        position: absolute;
        right: 0;
        bottom: 0;
        justify-content: flex-end;
        margin-top: 0;
    }
}

/* Responsive Styles - Desktop */
@media (min-width: 992px) {
    h1 {
        font-size: 3.5rem;
    }

    h2 {
        font-size: 2.5rem;
    }

    p {
        font-size: 1.2rem;
    }

    .btn {
        padding: 14px 32px;
        font-size: 1rem;
    }
}

@media (max-width: 992px) {
    h1 {
        font-size: 2.8rem;
    }

    h2 {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .nav-primary {
        display: none;
    }

    .nav-actions {
        margin-left: auto;
    }

    .hamburger {
        display: block;
        font-size: 1.5rem;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        flex-direction: column;
        background: var(--card-bg);
        width: 250px;
        height: 100vh;
        padding: 40px 20px;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.2);
        transition: var(--transition);
        border-left: 1px solid var(--card-border);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu li {
        margin: 15px 0;
    }

    header {
        padding: 10px 0;
    }

    html {
        scroll-padding-top: 70px;
    }

    .hero {
        padding-top: 70px;
    }

    .stack-icon {
        width: 34px;
        height: 34px;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 2.2rem;
    }

    h2 {
        font-size: 1.8rem;
    }

    section {
        padding: 60px 0;
    }

    .hero-buttons {
        flex-direction: column;
    }
}

/* Light mode icon visibility and footer contrast */
:root[data-theme="light"] .social-links a {
    background: #ffffff;
    color: #101828;
    border: 1px solid rgba(2, 6, 23, 0.08);
    box-shadow: 0 6px 16px rgba(16, 24, 40, 0.06);
}

:root[data-theme="light"] .social-links a:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: #ffffff;
}

:root[data-theme="light"] footer {
    background: #eef2f7;
    color: #101828;
}

:root[data-theme="light"] .footer-links a {
    color: #475467;
}

:root[data-theme="light"] .footer-links a:hover {
    color: var(--primary);
}

:root[data-theme="light"] .copyright {
    color: #667085;
    border-top-color: rgba(2, 6, 23, 0.08);
}

:root[data-theme="light"] .contact-icon {
    color: #ffffff;
}


.flash-alert {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1055;
    min-width: 280px;
    max-width: 360px;
    padding: 14px 18px;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.15);
    animation: slideInRight 0.5s ease, fadeOut 0.5s ease 2.5s forwards;
}

.flash-alert i {
    font-size: 1.2rem;
}

.flash-alert.success {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: #fff;
}

.flash-alert.error {
    background: linear-gradient(135deg, #dc3545, #e55353);
    color: #fff;
}


.form-group {
    margin-bottom: 20px;
    position: relative;
}

input, textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: #fafafa;
}

input:focus, textarea:focus {
    border-color: #4f46e5; /* Indigo accent */
    background: #fff;
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
    outline: none;
}

/* Error state */
.is-invalid {
    border-color: #ef4444 !important;
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.15);
}

/* Modern error message */
.error-message {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 6px;
    font-size: 13px;
    font-weight: 500;
    color: #ef4444;
    animation: slideIn 0.3s ease-in-out;
}

.error-message::before {
    content: "⚠";
    font-size: 14px;
    color: #ef4444;
}

/* Smooth animation */
@keyframes slideIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}