/* Modern Portfolio Styles */

:root {
    /* Light Theme Variables */
    --bg-color: #f0f2f5;
    --text-color: #1a1a1a;
    --accent-color: #38618a;
    --accent-hover: #2c4d6e;
    --card-bg: rgba(255, 255, 255, 0.7);
    --card-border: rgba(255, 255, 255, 0.5);
    --nav-bg: rgba(255, 255, 255, 0.8);
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    --glass-border: 1px solid rgba(255, 255, 255, 0.18);
    --transition-speed: 0.3s;
}

body.dark {
    /* Dark Theme Variables */
    --bg-color: #0f172a;
    --text-color: #e2e8f0;
    --accent-color: #60a5fa;
    --accent-hover: #3b82f6;
    --card-bg: rgba(30, 41, 59, 0.7);
    --card-border: rgba(255, 255, 255, 0.1);
    --nav-bg: rgba(15, 23, 42, 0.8);
    --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Fira Sans', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color var(--transition-speed), color var(--transition-speed);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-image:
        radial-gradient(at 0% 0%, rgba(56, 97, 138, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(56, 97, 138, 0.1) 0px, transparent 50%);
    background-attachment: fixed;
}

/* Typography */
h1,
h2,
h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    border-bottom: 2px solid var(--accent-color);
    display: inline-block;
    padding-bottom: 0.5rem;
    margin-bottom: 2rem;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

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

/* Navigation */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0.5rem 2rem;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--card-border);
    display: flex;
    justify-content: center;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
}

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

.nav-controls {
    display: flex;
    gap: 0.5rem;
}

nav a {
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    color: var(--text-color);
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--accent-color);
    transition: all var(--transition-speed);
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
    left: 0;
}

nav a:hover,
nav a.active {
    color: var(--accent-color);
}

/* Main Content */
main {
    flex: 1;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

section {
    display: none;
    animation: fadeIn 0.5s ease-out forwards;
}

section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.hero img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--accent-color);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    transition: transform var(--transition-speed);
}

.hero img:hover {
    transform: scale(1.05) rotate(5deg);
}

.hero h1 {
    background: linear-gradient(45deg, var(--accent-color), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    opacity: 0.9;
}

/* Buttons */
.btn,
.btn-outline {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
    border: 2px solid var(--accent-color);
}

.btn {
    background-color: var(--accent-color);
    color: white;
}

.btn:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(56, 97, 138, 0.3);
}

.btn-outline {
    background-color: transparent;
    color: var(--accent-color);
}

.btn-outline:hover {
    background-color: var(--accent-color);
    color: white;
    transform: translateY(-2px);
}

/* Cards (Glassmorphism) */
.card-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    padding: 1rem 0;
}

.card {
    flex: 1 1 300px;
    max-width: 400px;
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    display: flex;
    flex-direction: column;
    height: auto;
    min-height: 100%;
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    border-color: var(--accent-color);
}

.card h3 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.card ul {
    list-style-position: inside;
    padding-left: 0.5rem;
}

.card li {
    margin-bottom: 0.5rem;
}

/* Skills */
.skills-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.skill-card {
    flex: 1 1 250px;
    max-width: 350px;
    text-align: left;
}

.skill-card h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Projects */
.project-card {
    text-decoration: none;
    color: var(--text-color);
}

.project-card h3 {
    font-size: 1.4rem;
}

.project-card p {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* Certifications */
.cert-card {
    text-align: center;
    align-items: center;
}

.cert-card img {
    height: 80px;
    width: 80px;
    margin: 1rem 0;
    object-fit: contain;
    border-radius: 12px;
    background: white;
    padding: 8px;
    box-shadow: var(--shadow);
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background: var(--accent-color);
    transform: translateX(-50%);
}

.timeline-item {
    margin-bottom: 3rem;
    position: relative;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 2rem;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 2rem;
    text-align: left;
}

.experience-highlight {
    max-width: 600px;
    margin: 0 auto 3rem;
    text-align: center;
    border: 2px solid var(--accent-color);
    background: var(--card-bg);
    backdrop-filter: blur(12px);
}

.highlight-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 1rem;
    border-radius: 12px;
    background: white;
    padding: 8px;
    box-shadow: var(--shadow);
}

.timeline-date {
    color: var(--accent-color);
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: block;
}

.timeline-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    margin-bottom: 1rem;
    border-radius: 8px;
    background: white;
    padding: 4px;
    box-shadow: var(--shadow);
}

.timeline-date {
    color: var(--accent-color);
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: block;
}

.timeline-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    margin-bottom: 1rem;
    border-radius: 8px;
    background: white;
    padding: 4px;
    box-shadow: var(--shadow);
}

.timeline-dot {
    position: absolute;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--accent-color);
    border-radius: 50%;
    border: 4px solid var(--bg-color);
    z-index: 2;
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -9px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -9px;
}

.timeline-content {
    background: var(--card-bg);
    backdrop-filter: blur(4px);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow);
    transition: transform var(--transition-speed);
}

.timeline-content:hover {
    transform: scale(1.02);
}

.timeline-date {
    color: var(--accent-color);
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: block;
}

/* Skills Profiles */
.skills-profiles {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.cyber-profile-btn {
    background: white;
    padding: 8px;
    border-radius: 12px;
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow);
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: center;
}

.cyber-profile-btn img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.cyber-profile-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

/* Contact */
.contact-container {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 3rem 0;
    flex-wrap: wrap;
}

.contact-icon {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 50%;
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow);
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon img {
    width: 40px;
    height: 40px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.contact-icon:hover {
    transform: translateY(-5px) rotate(10deg);
    background: var(--accent-color);
}

.contact-icon:hover img {
    filter: brightness(0) invert(1);
}

/* Footer */
footer {
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    padding: 2rem;
    text-align: center;
    border-top: 1px solid var(--card-border);
    margin-top: auto;
}

.footer-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
    align-items: center;
}

.icon-btn {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-speed);
    font-size: 1.2rem;
}

.icon-btn:hover {
    background: var(--accent-color);
    color: white;
}

select.lang-switcher {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--text-color);
    padding: 0.5rem;
    border-radius: 8px;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 768px) {
    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 50px !important;
        padding-right: 0 !important;
        text-align: left !important;
    }

    .timeline-item:nth-child(odd) .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 11px;
        right: auto;
    }

    nav ul {
        gap: 1rem;
    }

    h1 {
        font-size: 2rem;
    }
}