/* Variables for colors and values */
:root {
    --color-slate-50: #f8fafc;
    --color-slate-800: #1e293b;
    --color-slate-900: #0f172a;
    --color-slate-700: #334155;
    --color-slate-400: #94a3b8;
    --color-indigo-50: #eef2ff;
    --color-indigo-100: #e0e7ff;
    --color-indigo-500: #6366f1;
    --color-indigo-600: #4f46e5;
    --color-indigo-700: #4338ca;
    --color-purple-600: #9333ea;
    --color-white: #ffffff;
    --color-green-500: #22c55e;
    --color-gray-800-semi-transparent: rgba(0,0,0,0.8);

    --border-radius-md: 0.375rem;
    --border-radius-lg: 0.5rem;
    --border-radius-xl: 0.75rem;
    --border-radius-full: 9999px;
    --box-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --box-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --box-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-slate-50);
    color: var(--color-slate-800);
    margin: 0;
    padding: 0;
}

section {scroll-snap-type: y mandatory;}

/* Container for content */
.container {
    max-width: 1280px; 
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem; 
    padding-right: 1.5rem; 
}

/* Header styles */
.header {
    background-color: var(--color-white);
    box-shadow: var(--box-shadow-md);
    padding: 1rem; 
    position: sticky;
    top: 0;
    z-index: 50;
}

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

.header-logo {
    font-size: 1.5rem; 
    font-weight: 700; 
    color: var(--color-indigo-600);
    margin-right: 2rem;
}

.nav-toggle-container {
    display: block;
}

/* Hide on large screens */
@media (min-width: 1024px) {
    .nav-toggle-container {
        display: none;
    }
}

.nav-toggle-button {
    display: flex;
    align-items: center;
    padding: 0.75rem 0.75rem; 
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-indigo-500);
    color: var(--color-indigo-500);
    cursor: pointer;
    transition: color 0.3s ease, border-color 0.3s ease;
}

.nav-toggle-button:hover {
    color: var(--color-indigo-700);
    border-color: var(--color-indigo-700);
}

.nav-toggle-button svg {
    fill: currentColor;
    height: 0.75rem; 
    width: 0.75rem; 
}

.nav-content {
    width: 100%; 
    flex-grow: 1;
    display: none; 
    transition: all 0.3s ease-in-out; 
}

/* This class will be toggled by JS to show the mobile menu */
.nav-content.nav-content-active {
    display: flex;
    flex-direction: column; 
}

@media (min-width: 1024px) {
    .nav-content {
        display: flex; 
        align-items: center; 
        width: auto; 
        flex-direction: row; 
    }
    .nav-content.nav-content-active { 
        flex-direction: row;
    }
}

.nav-links {
    font-size: 1rem; 
    flex-grow: 1; 
}

.nav-link {
    display: block;
    text-decoration: none;
    margin-top: 1rem; 
    color: var(--color-slate-700);
    margin-right: 1rem; 
    padding: 0.5rem; 
    border-radius: var(--border-radius-md);
    transition: color 0.3s ease, background-color 0.3s ease;
}

@media (min-width: 1024px) {
    .nav-link {
        display: inline-block; 
        margin-top: 0; 
    }
}

.nav-link:hover {
    color: var(--color-indigo-600);
    background-color: var(--color-indigo-50);
}

.nav-quote-button {
    display: inline-block;
    font-size: 0.875rem; 
    text-decoration: none;
    padding: 0.5rem 1rem; 
    line-height: 1.5; 
    border-radius: var(--border-radius-md);
    border: 1px solid transparent; 
    color: var(--color-white);
    background-color: var(--color-indigo-600);
    margin-top: 1rem; 
    transition: background-color 0.3s ease;
}

@media (min-width: 1024px) {
    .nav-quote-button {
        margin-top: 0; 
    }
}

.nav-quote-button:hover {
    background-color: var(--color-indigo-700);
    border-color: transparent; 
}

/* Hero Section styles */
.hero-section {
    background-image: url(code.png), linear-gradient(to right, var(--color-indigo-500), var(--color-purple-600));
    background-blend-mode: overlay;
    background-size: cover;
    color: var(--color-white);
    text-shadow: 1px 1px 2px var(--color-indigo-100);
    padding-top: 5rem; 
    padding-bottom: 5rem; 
    text-align: center;
    box-shadow: var(--box-shadow-lg);
    border-bottom-left-radius: var(--border-radius-xl);
    border-bottom-right-radius: var(--border-radius-xl);
    overflow: hidden;
    scroll-margin-top: 25rem;
}

@media (min-width: 768px) {
    .hero-section {
        padding-top: 8rem; 
        padding-bottom: 8rem; 
        scroll-margin-top: 4.5rem;
    }
}

.hero-title {
    font-size: 2.25rem; 
    font-weight: 800; 
    margin-bottom: 1rem; 
    animation: fadeInDown 1s ease-out forwards;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.75rem; 
    }
}

.hero-subtitle {
    font-size: 1.25rem; 
    margin-bottom: 2rem; 
    animation: fadeInUp 1s ease-out forwards;
    animation-delay: 0.2s; 
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: 1.5rem; 
    }
}

.hero-button {
    display: inline-block;
    background-color: var(--color-white);
    color: var(--color-indigo-700);
    font-weight: 700; 
    text-decoration: none;
    padding: 0.75rem 2rem; 
    border-radius: var(--border-radius-full);
    box-shadow: var(--box-shadow-lg);
    transition: background-color 0.3s ease, transform 0.3s ease;
    animation: zoomIn 0.8s ease-out forwards;
    animation-delay: 0.4s; 
}

.hero-button:hover {
    background-color: var(--color-indigo-100);
    transform: scale(1.05);
}

/* Section Heading styles */
.section-heading {
    font-size: 2.25rem; 
    font-weight: 700; 
    text-align: center;
    margin-bottom: 3rem; 
    position: relative;
    display: inline-block;
    margin-left: auto;
    margin-right: auto;
    width: fit-content;
}

.section-heading::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 70%; 
    height: 4px;
    background-color: var(--color-indigo-500);
    border-radius: var(--border-radius-full);
}

/* Services Section styles */
.services-section {
    padding-top: 4rem; 
    padding-bottom: 4rem; 
    background-color: var(--color-white);
    scroll-margin-top: 19rem;
}

@media (min-width: 768px) {
    .services-section {
        padding-top: 6rem; 
        padding-bottom: 6rem; 
        scroll-margin-top: 0rem;
    }
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr; 
    gap: 2.5rem; 
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)); 
    }
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr)); 
    }
}

.service-card {
    background-color: var(--color-slate-50);
    padding: 2rem; 
    border-radius: var(--border-radius-xl);
    box-shadow: var(--box-shadow-lg);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.service-card:hover {
    box-shadow: var(--box-shadow-xl);
    transform: translateY(-0.5rem); 
}

.service-icon {
    color: var(--color-indigo-600);
    font-size: 3.125rem; 
    margin-bottom: 1rem; 
    text-align: center;
}
.service-icon svg {
     display: inline-block;
     height: 3rem; 
     width: 3rem; 
}

.service-title {
    font-size: 1.5rem; 
    font-weight: 600; 
    color: var(--color-slate-900);
    margin-bottom: 1rem; 
    text-align: center;
}

.service-description {
    color: var(--color-slate-700);
    text-align: center;
}

/* Portfolio Section styles */
.portfolio-section {
    padding-top: 4rem; 
    padding-bottom: 4rem; 
    background-color: var(--color-slate-50);
    scroll-margin-top: 19rem;
}

@media (min-width: 768px) {
    .portfolio-section {
        padding-top: 6rem; 
        padding-bottom: 6rem; 
        scroll-margin-top: 0rem;
    }
}

.portfolio-grid {
    display: grid;
    grid-template-columns: 1fr; 
    gap: 2rem; 
}

@media (min-width: 768px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)); 
    }
}

@media (min-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr)); 
    }
}

.portfolio-item {
    background-color: var(--color-white);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--box-shadow-lg);
    overflow: hidden;
    transition: box-shadow 0.3s ease;
}

.portfolio-item:hover {
    box-shadow: var(--box-shadow-xl);
}

.portfolio-image {
    width: 100%;
    height: 14rem; 
    object-fit: cover;
    object-position: center top;
    transition: transform 0.3s ease;
    cursor: pointer;
}

.portfolio-item:hover .portfolio-image {
    transform: scale(1.05);
}

.portfolio-content {
    padding: 1.5rem; 
}

.portfolio-title {
    font-size: 1.25rem; 
    font-weight: 600; 
    color: var(--color-slate-900);
    margin-bottom: 0.5rem; 
}

.portfolio-description {
    color: var(--color-slate-700);
    font-size: 0.875rem; 
}

/* FAQ Section Specific Styles */
.faq-section {
    padding-top: 4rem;
    padding-bottom: 4rem;
    background-color: var(--color-white);
    scroll-margin-top: 19rem;
}

@media (min-width: 768px) {
    .faq-section {
        padding-top: 6rem;
        padding-bottom: 6rem;
        scroll-margin-top: 0rem;
    }
}

.faq-container {
    max-width: 48rem; 
    margin-left: auto;
    margin-right: auto;
    padding: 0 1.5rem;
}

.faq-item {
    background-color: var(--color-slate-50);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-md);
    margin-bottom: 1rem; /* mb-4 */
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem; 
    font-size: 1.125rem; 
    font-weight: 600; 
    color: var(--color-slate-800);
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: var(--color-indigo-50);
}

.faq-arrow {
    width: 1.5rem; 
    height: 1.5rem; 
    transition: transform 0.3s ease;
}

.faq-arrow.rotated {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 1.5rem 1.25rem 1.5rem; 
    color: var(--color-slate-700);
    font-size: 1rem; 
    line-height: 1.6; 
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.faq-answer.open {
    max-height: 200px; 
    padding-bottom: 1.25rem;
}

/* Contact Section styles */
.contact-section {
    padding-top: 4rem; 
    padding-bottom: 4rem; 
    background-color: var(--color-slate-50);
    scroll-margin-top: 19rem;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

@media (min-width: 768px) {
    .contact-section {
        padding-top: 6rem; 
        padding-bottom: 6rem; 
        scroll-margin-top: 0rem;
    }
    .contact-content {
        grid-template-columns: auto 1fr;
        gap: 6rem;
    }
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--color-indigo-500);
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    padding: .2rem;
    color: white;
}

.contact-icon img {
	width: 100%;
}

.contact-form-container {
    max-width: 40rem; 
    background-color: var(--color-slate-50);
    padding: 2rem; 
    border-radius: var(--border-radius-xl);
    box-shadow: var(--box-shadow-lg);
}

.contact-intro-text {
    color: var(--color-slate-700);
    text-align: center;
    margin-bottom: 2rem; 
}

.form-group {
    margin-bottom: 1.5rem; 
}

.form-label {
    display: block;
    color: var(--color-slate-700);
    font-weight: 700; 
    margin-bottom: 0.5rem; 
}

.form-hint {
    margin-top: 0.3rem;
}

.form-input,
.form-textarea {
    box-shadow: var(--box-shadow-md); 
    appearance: none;
    border: 1px solid #e2e8f0; 
    border-radius: var(--border-radius-lg);
    width: 100%;
    padding: 0.75rem 1rem; 
    color: var(--color-slate-700);
    line-height: 1.25; 
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--color-indigo-500); 
    box-shadow: 0 0 0 2px var(--color-indigo-500); 
}

.form-textarea {
    resize: vertical;
}

.form-submit-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-submit-button {
    background-color: var(--color-indigo-600);
    color: var(--color-white);
    font-weight: 700; 
    padding: 0.75rem 1.5rem; 
    border-radius: var(--border-radius-full);
    box-shadow: var(--box-shadow-lg);
    outline: none;
    transition: background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.form-submit-button:hover {
    background-color: var(--color-indigo-700);
    transform: scale(1.05);
}

.form-submit-button:focus {
    box-shadow: 0 0 0 2px var(--color-indigo-500), 0 0 0 4px var(--color-indigo-500, 0.5); 
}

/* Footer styles */
.footer {
    background-color: var(--color-slate-900);
    color: var(--color-white);
    padding-top: 2.5rem; 
    padding-bottom: 2.5rem; 
    text-align: center;
}

.footer-logo {
    font-size: 1.5rem; 
    font-weight: 700; 
    color: var(--color-indigo-400);
    margin-bottom: 1.5rem; 
}

.footer-copy {
    margin-top: 0.5rem; 
    color: var(--color-slate-400);
}

.footer-links {
    display: flex;
    justify-content: center;
    column-gap: 1.5rem; 
}

.footer-link {
    color: var(--color-slate-400);
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: var(--color-white);
}


#result {
    margin-top: 10px;
    transition: opacity 1s; 
    opacity: 1;
}

/* Simple scroll-to-top button styles */
#scrollToTopBtn {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 99;
    border: none;
    outline: none;
    background-color: var(--color-indigo-500);
    color: var(--color-white);
    cursor: pointer;
    padding: 12px 18px;
    border-radius: 50%;
    font-size: 18px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s ease;
}
#scrollToTopBtn:hover {
    background-color: var(--color-indigo-700);
}

/* Custom modal styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: var(--color-gray-800-semi-transparent);
    justify-content: center;
    align-items: center;
}

.modal-dialog { 
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-lg);
    display: grid; 
    grid-template-columns: 1fr; 
    grid-template-rows: 50% 50%; 
    max-width: 90%; 
    height: 90vh; 
    overflow: hidden; 
}

@media (min-width: 768px) {
    .modal-dialog {
        grid-template-columns: 1fr 1fr; 
        grid-template-rows: 1fr; 
        max-width: 80%;
        height: 80vh; 
    }
}

.modal-image {
    width: 100%; 
    height: 100%; 
    object-fit: cover; 
    object-position: center top;
    display: block; 
    border-top-left-radius: var(--border-radius-lg);
    border-top-right-radius: var(--border-radius-lg);
}

@media (min-width: 768px) {
    .modal-image {
        border-top-right-radius: 0;
        border-bottom-left-radius: var(--border-radius-lg);
    }
}

.close-button {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
}
.close-button:hover,
.close-button:focus {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
}
/* Modal caption styling */
.modal-caption {
    background-color: var(--color-slate-900);
    color: var(--color-white);
    padding: 1.5rem; 
    text-align: left; 
    overflow-y: auto; 
    border-bottom-left-radius: var(--border-radius-lg);
    border-bottom-right-radius: var(--border-radius-lg);
    font-size: 0.9rem; /* text-sm */
}

@media (min-width: 768px) {
    .modal-caption {
        border-bottom-left-radius: 0;
        border-top-right-radius: var(--border-radius-lg);
    }
}

.modal-caption h4 {
    font-size: 1.5rem; 
    font-weight: 700; 
    margin-bottom: 0.75rem;
    color: var(--color-indigo-300);
}
.modal-caption p {
    margin-bottom: 0.75rem;
    line-height: 1.5;
}
.modal-caption strong {
    color: var(--color-indigo-200); 
    display: block; 
    margin-bottom: 0.25rem;
    margin-top: 1rem; 
    font-size: 1rem; 
}
.modal-caption p span {
    display: block;
    margin-top: 0.25rem;
}

/* Project link button in modal */
.project-link-button {
    display: inline-block;
    background-color: var(--color-indigo-600);
    color: var(--color-white);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    text-decoration: none;
    margin-top: 1.5rem; 
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.project-link-button:hover {
    background-color: var(--color-indigo-700);
    transform: translateY(-2px);
}

/* Keyframe animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}