/* Default Light Theme Variables */
:root, html.light {
    --bg-primary: #f8fafc;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --glass-bg: rgba(255, 255, 255, 0.18);
    --glass-border: rgba(255, 255, 255, 0.45);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.04);
    --primary-color: #6366f1; /* Beautiful Indigo */
    --primary-hover: #4f46e5;
    --accent-color: #ec4899; /* Vibrant Pink */
    --chip-bg: rgba(255, 255, 255, 0.25);
    --chip-border: rgba(255, 255, 255, 0.45);
    --chip-hover: rgba(255, 255, 255, 0.5);
    --chip-active: rgba(99, 102, 241, 0.85);
    --chip-active-text: #ffffff;
    --overview-bg: rgba(255, 255, 255, 0.25);
    --timeline-line: rgba(99, 102, 241, 0.2);
    --success-color: #10b981;
}

/* Dark Theme Variables */
@media (prefers-color-scheme: dark) {
    html:not(.light) {
        --bg-primary: #030712; /* Deep dark slate */
        --text-primary: #f9fafb;
        --text-secondary: #d1d5db;
        --glass-bg: rgba(17, 24, 39, 0.35);
        --glass-border: rgba(255, 255, 255, 0.08);
        --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
        --primary-color: #818cf8; /* Light Indigo */
        --primary-hover: #6366f1;
        --accent-color: #f472b6; /* Soft Pink */
        --chip-bg: rgba(31, 41, 55, 0.3);
        --chip-border: rgba(255, 255, 255, 0.08);
        --chip-hover: rgba(255, 255, 255, 0.15);
        --chip-active: rgba(129, 140, 248, 0.8);
        --chip-active-text: #ffffff;
        --overview-bg: rgba(17, 24, 39, 0.4);
        --timeline-line: rgba(129, 140, 248, 0.25);
        --success-color: #34d399;
    }
}

html.dark {
    --bg-primary: #030712;
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --glass-bg: rgba(17, 24, 39, 0.35);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
    --primary-color: #818cf8;
    --primary-hover: #6366f1;
    --accent-color: #f472b6;
    --chip-bg: rgba(31, 41, 55, 0.3);
    --chip-border: rgba(255, 255, 255, 0.08);
    --chip-hover: rgba(255, 255, 255, 0.15);
    --chip-active: rgba(129, 140, 248, 0.8);
    --chip-active-text: #ffffff;
    --overview-bg: rgba(17, 24, 39, 0.4);
    --timeline-line: rgba(129, 140, 248, 0.25);
    --success-color: #34d399;
}

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

body {
    font-family: 'Outfit', 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 4vh;
    padding-bottom: 8vh;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
    /* Ensure body itself doesn't block clicks */
    position: relative;
}

/* Subtle background gradients and floating orbs */
/* STRICTLY pointer-events: none and z-index: -2 */
.background-glass {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg-primary);
    z-index: -2;
    pointer-events: none;
}

.background-orbs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    z-index: -1;
    pointer-events: none;
    filter: blur(90px);
}

.orb {
    position: absolute;
    border-radius: 50%;
    opacity: 0.45;
    animation: float 22s infinite ease-in-out alternate;
    pointer-events: none;
}

.orb-1 {
    width: 650px;
    height: 650px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.6) 0%, transparent 70%);
    top: -150px;
    right: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 550px;
    height: 550px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.4) 0%, transparent 70%);
    bottom: -150px;
    left: -100px;
    animation-delay: -6s;
}

.orb-3 {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.4) 0%, transparent 70%);
    top: 30%;
    left: 25%;
    animation-delay: -12s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(40px, -60px) scale(1.1); }
    100% { transform: translate(-30px, 30px) scale(0.95); }
}

.container {
    width: 100%;
    max-width: 960px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    position: relative;
    z-index: 10; /* Keep content above backgrounds */
}

header {
    text-align: center;
    margin-bottom: 0.5rem;
    animation: slideDown 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

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

.avatar-container {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    margin: 0 auto 1.25rem;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem;
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.35);
    border: 3px solid rgba(255, 255, 255, 0.8);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.avatar-container:hover {
    transform: scale(1.05) rotate(5deg);
    box-shadow: 0 12px 30px rgba(99, 102, 241, 0.5);
}

h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-secondary);
    font-size: 1.25rem;
    font-weight: 400;
}

/* Static Navigation (Tabs) */
.tab-nav {
    display: flex;
    justify-content: center;
    padding: 1rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    animation: fadeIn 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    position: relative;
    z-index: 50;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.chips-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    justify-content: center;
}

.chip {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-primary);
    padding: 0.6rem 1.25rem;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s ease;
    /* Ensure buttons are highly clickable */
    position: relative;
    z-index: 20;
}

.chip:hover {
    background: var(--chip-hover);
    border-color: rgba(99, 102, 241, 0.3);
}

.chip.active {
    background: linear-gradient(135deg, var(--primary-color), #818cf8);
    color: var(--chip-active-text);
    border-color: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

/* Portfolio Content Area (SPA style) */
.portfolio-content {
    margin-top: 1rem;
    position: relative;
    min-height: 400px;
}

.portfolio-section {
    display: none;
    flex-direction: column;
    gap: 1.5rem;
    animation: fadeSlideUp 0.4s ease-out forwards;
}

.portfolio-section.active {
    display: flex;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    letter-spacing: -0.02em;
}

@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

/* General Card Design */
.result-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s;
}

.result-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    border-color: rgba(99, 102, 241, 0.3);
}

/* Featured Profile Card for About */
.profile-card {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    border-left: 4px solid var(--primary-color);
    background: linear-gradient(135deg, var(--glass-bg), rgba(99, 102, 241, 0.05));
}

.profile-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.profile-card-header .avatar-small {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.6rem;
    box-shadow: 0 4px 10px rgba(99, 102, 241, 0.2);
    position: relative;
    overflow: hidden;
}

.profile-card-info h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.profile-card-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.profile-bio {
    line-height: 1.6;
    font-size: 1.05rem;
    color: var(--text-primary);
}

.profile-meta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem 1rem;
    margin-top: 1rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--glass-border);
}

@media (max-width: 650px) {
    .profile-meta-grid {
        grid-template-columns: 1fr;
    }
}

.meta-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.meta-icon {
    font-size: 1.15rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.meta-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.meta-text strong {
    color: var(--text-primary);
}

/* Skills Layout styling */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.25rem;
}

.skill-bar-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 1.25rem;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: transform 0.2s;
}

.skill-bar-card:hover {
    transform: translateY(-2px);
    border-color: rgba(99, 102, 241, 0.2);
}

.skill-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.skill-name-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.skill-level-text {
    font-size: 0.85rem;
    color: var(--primary-color);
    font-weight: 600;
}

.skill-progress-bg {
    width: 100%;
    height: 6px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 10px;
    overflow: hidden;
}

.skill-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 10px;
    width: 0;
    transition: width 0.8s ease-out;
    position: relative;
    overflow: hidden;
}

.skill-progress-fill::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 15%;
    height: 100%;
    background: linear-gradient(
        to right, transparent,
        rgba(255, 255, 255, 0.75),
        transparent
    );
    animation: light-ray 2s linear infinite;
}

@keyframes light-ray {
    0%   { transform: translateX(-100%); }
    100% { transform: translateX(800%); }
}

/* Experience Timeline styling */
.experience-timeline {
    position: relative;
    padding-left: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.experience-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 7px;
    width: 2px;
    height: 100%;
    background: var(--timeline-line);
}

.timeline-item {
    position: relative;
}

.timeline-dot {
    position: absolute;
    left: -2rem;
    top: 8px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 3px solid var(--primary-color);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
    z-index: 1;
}

.timeline-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.timeline-role h3 {
    font-size: 1.15rem;
    font-weight: 600;
}

.timeline-role span {
    font-size: 0.95rem;
    color: var(--primary-color);
    font-weight: 500;
}

.timeline-period {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--chip-bg);
    padding: 0.25rem 0.65rem;
    border-radius: 6px;
    border: 1px solid var(--glass-border);
}

.timeline-highlights {
    list-style-type: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.timeline-highlights li {
    font-size: 0.95rem;
    line-height: 1.5;
    position: relative;
    padding-left: 1.1rem;
    color: var(--text-secondary);
}

.timeline-highlights li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 600;
}

/* Projects grid styling */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.project-card {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 0;
}

.project-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.project-title-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.project-icon {
    font-size: 1.3rem;
}

.project-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
}

.featured-badge {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-color);
    background: rgba(236, 72, 153, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    border: 1px solid rgba(236, 72, 153, 0.2);
    white-space: nowrap;
}

.project-desc {
    font-size: 0.92rem;
    line-height: 1.55;
    color: var(--text-secondary);
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.project-tag {
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--chip-bg);
    border: 1px solid var(--glass-border);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    color: var(--text-secondary);
}

.project-links {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--glass-border);
}

.project-link-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: color 0.2s;
    position: relative;
    z-index: 20;
}

.project-link-item:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Contact Grid */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
}

.contact-card {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    text-decoration: none;
    color: inherit;
    margin-bottom: 0;
    position: relative;
    z-index: 20;
}

.contact-title {
    font-weight: 600;
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-icon {
    font-size: 1.2rem;
    color: var(--primary-color);
}

.contact-detail {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Form Styling */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 0.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input {
    background: var(--chip-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.75rem;
    border-radius: 8px;
    outline: none;
    font-family: inherit;
    font-size: 0.9rem;
    transition: border-color 0.2s;
    position: relative;
    z-index: 20;
}

.form-input:focus {
    border-color: var(--primary-color);
}

textarea.form-input {
    resize: vertical;
    min-height: 120px;
}

.form-submit-btn {
    align-self: flex-start;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border: none;
    padding: 0.75rem 1.75rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
    z-index: 20;
}

.form-submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 15px rgba(99, 102, 241, 0.3);
}

.form-submit-btn:active {
    transform: translateY(0);
}

.form-status {
    font-size: 0.9rem;
    font-weight: 500;
    margin-top: 0.5rem;
}

.form-status.success {
    color: var(--success-color);
}

/* Settings Button */
.settings-btn {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    z-index: 100;
    transition: all 0.2s ease;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.settings-btn:hover {
    transform: rotate(30deg) scale(1.05);
    background: var(--chip-hover);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--text-primary);
    color: var(--bg-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 500;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
    z-index: 50;
    opacity: 0;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Settings Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 200;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay:not(.hidden) {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    width: 90%;
    max-width: 480px;
    padding: 2.25rem;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
    transform: scale(0.95);
    transition: transform 0.35s ease;
}

.modal-overlay:not(.hidden) .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.75rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h2 {
    font-size: 1.4rem;
    font-weight: 600;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.75rem;
    line-height: 1;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s;
}

.close-btn:hover {
    color: var(--text-primary);
}

.settings-section {
    margin-bottom: 1.5rem;
}

.settings-section h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.theme-options {
    display: flex;
    gap: 1rem;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: color 0.2s;
    font-size: 0.95rem;
}

.radio-label:hover {
    color: var(--text-primary);
}

.radio-label input {
    accent-color: var(--primary-color);
    width: 1.05rem;
    height: 1.05rem;
    cursor: pointer;
}

/* Mobile & Tablet Responsiveness */
@media (max-width: 1024px) {
    .container {
        padding: 1.5rem;
    }
    header h1 {
        font-size: 2.75rem;
    }
}

@media (max-width: 768px) {
    body {
        padding-top: 3vh;
    }

    .container {
        padding: 1.25rem;
        gap: 1.5rem;
    }

    header {
        margin-bottom: 0.5rem;
    }

    header h1 {
        font-size: 2.25rem;
    }

    header p {
        font-size: 1.1rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    header h1 {
        font-size: 2rem;
    }
    
    .tab-nav {
        padding: 0.75rem;
        border-radius: 16px;
    }

    .chips-container {
        justify-content: center;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .chip {
        flex-shrink: 0;
        font-size: 0.85rem;
        padding: 0.45rem 0.95rem;
    }

    .settings-btn {
        top: 1rem;
        right: 1rem;
        width: 40px;
        height: 40px;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 400px) {
    header h1 {
        font-size: 1.8rem;
    }
}