/* ========== CSS RESET ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* ========== SOFT THEME VARIABLES ========== */
:root {
    --bg-gradient-start: #e0eafc;  /* soft blue */
    --bg-gradient-end: #fbe9f0;     /* soft pink */
    --card-bg: rgba(255, 255, 255, 0.7);
    --card-bg-hover: rgba(255, 255, 255, 0.9);
    --soft-green: #d4edda;
    --soft-pink: #f8d7da;
    --soft-blue: #d1ecf1;
    --soft-lavender: #e2d1f0;
    --soft-peach: #fff3cd;
    --text-primary: #4a5568;
    --text-secondary: #2d3748;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.1);
    --border-radius-card: 30px;
    --border-radius-item: 20px;
    --border-radius-button: 50px;
}

/* ========== BASE STYLES ========== */
body {
    background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
    color: var(--text-primary);
    min-height: 100vh;
    padding: 20px;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

/* ========== NAVIGATION ========== */
nav {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-button);
    padding: 15px 25px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    animation: fadeInUp 0.8s ease;
    transition: all 0.3s ease;
    position: sticky;
    top: 20px;
    z-index: 1000;
}

nav:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.nav-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    padding: 12px 25px;
    border-radius: var(--border-radius-button);
    background: rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    backdrop-filter: blur(5px);
}

.nav-link:hover {
    background: white;
    transform: scale(1.05) translateY(-2px);
    box-shadow: var(--shadow);
}

.nav-link.active {
    background: white;
    box-shadow: var(--shadow);
}

/* ========== SECTIONS ========== */
.section {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-card);
    padding: 40px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    animation: fadeInUp 0.8s ease;
    transition: all 0.3s ease;
    display: none;
}

.section.active {
    display: block;
}

.section:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    background: var(--card-bg-hover);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: var(--text-secondary);
    border-bottom: 4px solid var(--soft-green);
    padding-bottom: 15px;
    position: relative;
}

h1::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 50px;
    height: 4px;
    background: var(--soft-blue);
    animation: slideIn 1s ease;
}

h2 {
    font-size: 2rem;
    margin: 30px 0 20px;
    color: var(--text-secondary);
}

h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-secondary);
}

/* ========== PROFILE PHOTO STYLES ========== */
.profile-header {
    display: flex;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.profile-avatar {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.5s ease;
    animation: pulse 3s infinite;
    position: relative;
    background: linear-gradient(135deg, var(--soft-lavender), var(--soft-peach));
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.5s ease;
}

.profile-avatar:hover {
    transform: rotate(5deg) scale(1.05);
    box-shadow: var(--shadow-hover);
}

.profile-avatar:hover .profile-img {
    transform: scale(1.1);
}

/* Upload button styles */
.upload-btn {
    display: inline-block;
    background: var(--soft-blue);
    color: var(--text-secondary);
    padding: 10px 25px;
    border-radius: var(--border-radius-button);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    border: 2px solid transparent;
}

.upload-btn:hover {
    background: white;
    transform: scale(1.05);
    border-color: var(--soft-green);
}

.upload-hint {
    color: var(--text-primary);
    opacity: 0.8;
}

.profile-name h2 {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.profile-bio {
    font-size: 1.2rem;
    color: var(--text-primary);
}

/* ========== INFO CARDS ========== */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.info-card {
    background: rgba(255, 255, 255, 0.5);
    padding: 20px;
    border-radius: var(--border-radius-item);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.info-card:hover {
    transform: translateX(10px) scale(1.02);
    background: white;
    border-color: var(--soft-green);
}

.info-card h3 {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-card p {
    font-size: 1.1rem;
}

/* ========== TIMELINE ========== */
.timeline-item {
    background: rgba(255, 255, 255, 0.5);
    padding: 25px;
    border-radius: var(--border-radius-item);
    margin-bottom: 15px;
    transition: all 0.3s ease;
    border-left: 5px solid var(--soft-green);
    position: relative;
    overflow: hidden;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5));
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.timeline-item:hover {
    transform: translateX(15px);
    background: white;
}

.timeline-item:hover::before {
    transform: translateX(100%);
}

.timeline-item h3 {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.timeline-item p {
    color: var(--text-primary);
    font-size: 1rem;
}

/* ========== SKILLS ========== */
.skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin: 20px 0;
}

.skill-badge {
    background: var(--soft-green);
    padding: 12px 30px;
    border-radius: var(--border-radius-button);
    font-weight: 600;
    transition: all 0.4s ease;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.skill-badge::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.skill-badge:hover {
    transform: scale(1.15) rotate(3deg);
    background: var(--soft-blue);
}

.skill-badge:hover::before {
    width: 300px;
    height: 300px;
}

/* ========== PORTFOLIO STYLES ========== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.portfolio-card {
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--border-radius-item);
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: var(--shadow-hover);
    background: white;
}

.portfolio-image {
    height: 220px;
    background: linear-gradient(135deg, var(--soft-lavender), var(--soft-peach));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
}

.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.5s ease;
}

.portfolio-img-fallback {
    display: none;
    font-size: 4rem;
}

.portfolio-image img:not([src]), 
.portfolio-image img[src=""],
.portfolio-image img[onerror] {
    display: none;
}

.portfolio-image img:not([src]) + .portfolio-img-fallback,
.portfolio-image img[src=""] + .portfolio-img-fallback,
.portfolio-image img[onerror] + .portfolio-img-fallback {
    display: block;
}

.portfolio-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
    z-index: 2;
}

.portfolio-card:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-card:hover .portfolio-image::before {
    left: 100%;
}

.portfolio-content {
    padding: 25px;
    flex: 1;
}

.portfolio-content h3 {
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.portfolio-content p {
    color: var(--text-primary);
    line-height: 1.6;
}

/* ========== GAME STYLES ========== */
.game-wrapper {
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--border-radius-item);
    padding: 40px;
    box-shadow: var(--shadow);
}

.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.game-badge {
    background: white;
    padding: 18px 35px;
    border-radius: var(--border-radius-button);
    font-size: 1.3rem;
    font-weight: 700;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.game-badge:hover {
    transform: scale(1.1);
    border-color: var(--soft-green);
    box-shadow: var(--shadow-hover);
}

.game-badge i {
    margin-right: 10px;
}

.question-display {
    background: var(--soft-lavender);
    padding: 50px;
    border-radius: var(--border-radius-item);
    margin-bottom: 30px;
    text-align: center;
    font-size: 4rem;
    font-weight: 800;
    box-shadow: var(--shadow);
    animation: pulse 3s infinite;
    border: 3px solid white;
    letter-spacing: 5px;
}

.game-input-group {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 25px;
}

.game-input {
    padding: 18px 30px;
    font-size: 1.3rem;
    border: none;
    border-radius: var(--border-radius-button);
    background: white;
    width: 250px;
    outline: none;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    border: 2px solid transparent;
}

.game-input:focus {
    transform: scale(1.05);
    border-color: var(--soft-green);
    box-shadow: var(--shadow-hover);
}

.game-btn {
    padding: 18px 40px;
    font-size: 1.2rem;
    border: none;
    border-radius: var(--border-radius-button);
    background: var(--soft-green);
    color: var(--text-secondary);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    border: 2px solid transparent;
}

.game-btn:hover {
    transform: scale(1.1) rotate(2deg);
    background: var(--soft-blue);
    box-shadow: var(--shadow-hover);
    border-color: white;
}

.game-btn.reset {
    background: var(--soft-pink);
}

.game-btn.reset:hover {
    background: #f5c6cb;
}

.game-message {
    background: white;
    padding: 20px;
    border-radius: var(--border-radius-button);
    font-size: 1.2rem;
    text-align: center;
    animation: slideIn 0.5s ease;
    box-shadow: var(--shadow);
    margin-top: 20px;
}

.instructions {
    margin-top: 30px;
    background: rgba(255, 255, 255, 0.5);
    padding: 25px;
    border-radius: var(--border-radius-item);
    border-left: 5px solid var(--soft-blue);
}

.instructions h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.instructions ul {
    list-style: none;
}

.instructions li {
    margin: 10px 0;
    padding-left: 25px;
    position: relative;
}

.instructions li::before {
    content: '🎮';
    position: absolute;
    left: 0;
}

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .section {
        padding: 25px;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.6rem;
    }

    .profile-header {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

    .profile-avatar {
        width: 150px;
        height: 150px;
    }

    .nav-links {
        gap: 10px;
    }

    .nav-link {
        padding: 10px 15px;
        font-size: 0.9rem;
    }

    .game-badge {
        width: 100%;
        text-align: center;
    }

    .question-display {
        font-size: 2.5rem;
        padding: 30px;
    }

    .game-input {
        width: 100%;
    }

    .game-btn {
        width: 100%;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 15px;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }

    .skill-badge {
        width: 100%;
        text-align: center;
    }

    .question-display {
        font-size: 2rem;
        padding: 20px;
    }
}

/* ========== UTILITY CLASSES ========== */
.emoji-icon {
    font-size: 1.5rem;
    margin-right: 10px;
}