/* ==========================================================================
   Portfolio Stylesheet for Sooraj Aryan
   ========================================================================== */

/* #region THEME COLOR VARIABLES */
/* --- Light Theme (Default) --- */
body[data-theme="light"] {
    --primary-color: #007bff;
    --background-color: #edf2f7;
    --surface-color: #ffffff;
    --text-color: #495057;
    --heading-color: #212529;
    --header-color: #ffffff;
    --subtle-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    --border-color: #e9ecef;
}

/* --- Dark Theme --- */
body[data-theme="dark"] {
    --primary-color: #007bff;
    --background-color: #121212;
    --surface-color: #1e1e1e;
    --text-color: #c0c0c0;
    --heading-color: #ffffff;
    --header-color: #1f1f1f;
    --subtle-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    --border-color: #333;
}

/* --- Forest Theme --- */
body[data-theme="forest"] {
    --primary-color: #38a169; /* Green */
    --background-color: #f0fff4; /* Honeydew */
    --surface-color: #ffffff;
    --text-color: #2f4e44;
    --heading-color: #1a202c;
    --header-color: #ffffff;
    --subtle-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    --border-color: #e0f2e9;
}

/* --- Sunset Theme --- */
body[data-theme="sunset"] {
    --primary-color: #dd6b20; /* Orange */
    --background-color: #fffaf0; /* Floral White */
    --surface-color: #ffffff;
    --text-color: #4a4a4a;
    --heading-color: #2d3748;
    --header-color: #ffffff;
    --subtle-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    --border-color: #faebd7;
}
/* #endregion */

/* #region BASE STYLES */
html { scroll-behavior: smooth; }
body {
    font-family: 'Lato', sans-serif;
    font-weight: 400;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.7;
    transition: background-color 0.3s, color 0.3s;
}
/* #endregion */

/* #region HEADER & NAVIGATION */
header {
    background-color: var(--header-color);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: background-color 0.3s;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.logo {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--heading-color);
    z-index: 1002; /* Ensure logo is above mobile menu */
}

nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
}

nav a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 700;
    transition: color 0.3s;
}

nav a:hover { color: var(--primary-color); }
/* #endregion */

/* #region MOBILE MENU & HAMBURGER */
#menu-toggle {
    display: none; /* Hidden by default on desktop */
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--heading-color);
    cursor: pointer;
    z-index: 1002; /* Keep it above the overlay */
}
/* #endregion */

/* #region THEME SWITCHER */
#theme-switcher-container {
    position: relative;
}

#theme-switcher-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--heading-color);
    transition: color 0.3s, transform 0.3s;
    padding: 0.5rem;
}
#theme-switcher-btn:hover {
    color: var(--primary-color);
    transform: scale(1.1);
}

#theme-options {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--surface-color);
    border-radius: 8px;
    box-shadow: var(--subtle-shadow);
    padding: 0.5rem;
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
    border: 1px solid var(--border-color);
    z-index: 1001; /* Ensure it's above other nav items */
}

#theme-options.hidden {
    display: none;
}

.theme-option {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid var(--surface-color);
    cursor: pointer;
    box-shadow: 0 0 0 1px var(--border-color);
}

.theme-option[data-theme="light"] { background-color: #007bff; }
.theme-option[data-theme="dark"] { background-color: #4a5568; }
.theme-option[data-theme="forest"] { background-color: #38a169; }
.theme-option[data-theme="sunset"] { background-color: #dd6b20; }
/* #endregion */

/* #region LAYOUT & TYPOGRAPHY */
main { padding-top: 80px; }
section { padding: 5rem 2rem; max-width: 1000px; margin: 0 auto; text-align: center; }
h1, h2, h3, h4 { font-family: 'Poppins', sans-serif; font-weight: 700; color: var(--heading-color); }
h1 { font-size: 3.5rem; margin-bottom: 0.5rem; }
h2 { font-size: 2.8rem; font-weight: 600; margin-bottom: 3.5rem; border-bottom: 3px solid var(--primary-color); display: inline-block; padding-bottom: 0.8rem; }
h3 { font-size: 1.5rem; color: var(--primary-color); }
h4 { font-size: 1.2rem; font-weight: 600; }
/* #endregion */

/* #region HERO SECTION */
#hero { min-height: 90vh; display: flex; align-items: center; justify-content: center; padding: 2rem; width: 100%; box-sizing: border-box; position: relative; }
.hero-container { display: flex; align-items: center; gap: 4rem; max-width: 1200px; width: 100%; }
.hero-text { flex: 1.2; text-align: left; }
.hero-profile-img { width: 150px; height: 150px; border-radius: 50%; object-fit: cover; margin-bottom: 2rem; border: 5px solid var(--surface-color); box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15); }
.hero-subtitle { font-size: 1.5rem; font-family: 'Poppins', sans-serif; font-weight: 600; color: var(--primary-color); margin-top: -1rem; }
.hero-description { font-size: 1.1rem; margin: 2rem 0; }
.hero-buttons { display: flex; align-items: center; gap: 1.5rem; margin-top: 2rem; }
.hero-banner { flex: 1; display: flex; justify-content: center; align-items: center; }
.hero-banner img { max-width: 100%; border-radius: 12px; box-shadow: var(--subtle-shadow); }
.social-links a { color: var(--heading-color); font-size: 1.8rem; margin: 0 0.5rem; transition: color 0.3s ease, transform 0.3s ease; }
.social-links a:hover { color: var(--primary-color); transform: translateY(-3px); }
/* #endregion */

/* #region CARDS & COMPONENTS */
.card, .skill-category, .strength-card, .cert-card, .project-card { background-color: var(--surface-color); padding: 2rem; border-radius: 12px; text-align: left; box-shadow: var(--subtle-shadow); border: 1px solid var(--border-color); transition: transform 0.3s, box-shadow 0.3s, background-color 0.3s; }
.card:hover, .skill-category:hover, .strength-card:hover, .cert-card:hover, .project-card:hover { transform: translateY(-8px); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12); }
.card ul { padding-left: 20px; } 
.company-info { font-style: italic; color: #6c757d; margin-top: -0.5rem; margin-bottom: 1rem; }
.education-container { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.skills-grid, .strengths-container, .certifications-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 2rem; }
.cert-card { padding: 1.5rem; text-align: center; }
.skill-category ul { list-style-type: none; padding: 0; margin: 0; line-height: 1.8; }
.strength-card { text-align: center; }
.strength-card i { font-size: 2.5rem; color: var(--primary-color); margin-bottom: 1rem; transition: transform 0.3s, color 0.3s; }
.strength-card:hover i { transform: scale(1.15); }
.interests-container { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; }
.interest-tag { background-color: var(--surface-color); padding: 0.6rem 1.3rem; border-radius: 50px; font-size: 1rem; font-weight: 700; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07); transition: transform 0.3s, box-shadow 0.3s, background-color 0.3s; }
.interest-tag:hover { transform: translateY(-3px); box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1); }
/* #endregion */

/* #region PROJECTS SECTION */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2rem; }
.project-card { padding: 0; display: flex; flex-direction: column; }
.project-image img { width: 100%; height: auto; display: block; border-top-left-radius: 12px; border-top-right-radius: 12px; }
.project-content { padding: 1.5rem; display: flex; flex-direction: column; flex-grow: 1; }
.project-content h3 { margin-top: 0; }
.project-content p { flex-grow: 1; margin-bottom: 1.5rem; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }
.project-tags span { background-color: var(--background-color); color: var(--primary-color); padding: 0.3rem 0.8rem; border-radius: 50px; font-size: 0.8rem; font-weight: 700; }
.project-links { display: flex; gap: 1.5rem; align-items: center; } 
.project-links a { text-decoration: none; color: var(--text-color); font-weight: 700; transition: color 0.3s; }
.project-links a:hover { color: var(--primary-color); }
.project-links a i { margin-right: 0.5rem; }
/* #endregion */

/* #region CONTACT SECTION */
.contact-details { display: flex; justify-content: center; gap: 2rem; margin-bottom: 2rem; flex-wrap: wrap; }
.contact-item { display: flex; align-items: center; gap: 0.8rem; font-size: 1.1rem; }
.contact-item i { color: var(--primary-color); }
.contact-item a { color: var(--text-color); text-decoration: none; transition: color 0.3s; }
.contact-item a:hover { color: var(--primary-color); }

#contact-form { max-width: 600px; margin: 2rem auto 0; text-align: left; }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 700; color: var(--heading-color); }
#contact-form input, #contact-form textarea { width: 100%; padding: 1rem; border-radius: 8px; border: 1px solid var(--border-color); font-size: 1rem; font-family: 'Lato', sans-serif; background-color: var(--surface-color); color: var(--text-color); box-sizing: border-box; transition: background-color 0.3s, border-color 0.3s; }
#contact-form input:focus, #contact-form textarea:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.15); }
#form-status { margin-top: 1rem; text-align: center; font-weight: bold; }
/* #endregion */

/* #region BUTTONS */
.btn { display: inline-block; padding: 0.8rem 2rem; background-color: var(--primary-color); color: #ffffff; text-decoration: none; border-radius: 50px; font-weight: 700; font-family: 'Poppins', sans-serif; transition: background-color 0.3s, transform 0.3s; box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3); }
.btn:hover { background-color: #0056b3; transform: translateY(-3px); }
.btn-nav { background-color: var(--primary-color); color: #ffffff !important; padding: 0.5rem 1rem; border-radius: 5px; transition: background-color 0.3s, transform 0.3s; }
.btn-nav:hover { background-color: #0056b3; transform: translateY(-2px); }
/* #endregion */

/* #region SCROLL BUTTONS */
#scrollTopBtn { display: inline-block; background-color: var(--primary-color); width: 50px; height: 50px; text-align: center; border-radius: 50%; position: fixed; bottom: 30px; right: 30px; transition: background-color .3s, opacity .5s, visibility .5s; opacity: 0; visibility: hidden; z-index: 1000; }
#scrollTopBtn i { color: #ffffff; font-size: 1.2rem; line-height: 50px; }
#scrollTopBtn:hover { background-color: #0056b3; }
#scrollTopBtn.show { opacity: 1; visibility: visible; }
.scroll-down-btn { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); color: var(--heading-color); font-size: 2rem; text-decoration: none; transition: color 0.3s; animation: bounce 2s infinite; }
.scroll-down-btn:hover { color: var(--primary-color); }
/* #endregion */

/* #region FOOTER */
footer { text-align: center; padding: 2rem 0; background-color: var(--surface-color); margin-top: 2rem; border-top: 1px solid var(--border-color); transition: background-color 0.3s, border-top-color 0.3s; }
/* #endregion */

/* #region RESPONSIVE & ANIMATIONS */
@media (max-width: 992px) {
    /* --- Mobile Hero Layout --- */
    .hero-container { flex-direction: column; text-align: center; } 
    .hero-text { text-align: center; order: 2; display: flex; flex-direction: column; align-items: center; } 
    .hero-banner { order: 1; width: 80%; margin-bottom: 2rem; } 
    .hero-buttons { justify-content: center; flex-direction: column; gap: 1rem; } /* Stack buttons vertically */
}

@media (max-width: 768px) {
    h1 { font-size: 2.8rem; } 
    h2 { font-size: 2.2rem; } 
    .education-container { grid-template-columns: 1fr; }

    /* --- Mobile Navigation --- */
    #menu-toggle {
        display: block; /* Show hamburger button */
    }
    
    #nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: var(--surface-color);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transform: translateX(-100%);
        transition: transform 0.3s ease-out;
        z-index: 1001; /* Below header but above content */
    }

    #nav-menu.active {
        transform: translateX(0); /* Slide in */
    }

    #nav-menu a {
        font-size: 1.5rem; /* Make links larger */
    }

    #theme-switcher-container {
        position: static; /* Prevent absolute positioning issues in mobile menu */
    }

    #theme-options {
        position: relative;
        top: auto;
        right: auto;
        box-shadow: none;
        border: none;
        padding: 0;
        margin-top: 1rem;
    }
}

.card, .skill-category, .strength-card, .cert-card, .project-card { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease-out, transform 0.6s ease-out, background-color 0.3s; }
.visible { opacity: 1; transform: translateY(0); }
@keyframes bounce { 0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); } 40% { transform: translateX(-50%) translateY(-20px); } 60% { transform: translateX(-50%) translateY(-10px); } }
/* #endregion */