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

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

body.landing-page {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

/* Navigation Styles */
.page-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1rem 2rem;
    display: flex;
    gap: 2rem;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Landing Page Styles */
.landing-content {
    padding-top: 100px;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 2rem;
    padding-right: 2rem;
}

/* Executive Bio Styles */
.executive-bio {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 3rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    margin-bottom: 2rem;
}

.bio-header {
    text-align: center;
    margin-bottom: 3rem;
}

.bio-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.bio-subtitle {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
}

.bio-content {
    color: white;
    line-height: 1.6;
}

.bio-section {
    margin-bottom: 2.5rem;
}

.bio-section h2 {
    color: #ffd93d;
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border-bottom: 2px solid rgba(255, 217, 61, 0.3);
    padding-bottom: 0.5rem;
}

.bio-section p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
}

.experience-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid #ffd93d;
}

.experience-item h3 {
    color: white;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.company {
    color: #4facfe;
    font-weight: 500;
    margin-bottom: 0.3rem;
}

.duration {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.experience-item ul {
    list-style: none;
    padding-left: 0;
}

.experience-item li {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.experience-item li:before {
    content: "•";
    color: #ffd93d;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.competencies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.competency {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.competency h4 {
    color: #4facfe;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.competency p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    margin: 0;
}

.bio-actions {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

/* PDF Display Styles */
.pdf-header {
    text-align: center;
    margin-bottom: 2rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 15px;
    padding: 2rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.pdf-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.pdf-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.pdf-container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 1rem;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    margin-bottom: 2rem;
}

.pdf-container embed {
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.pdf-fallback {
    text-align: center;
    padding: 3rem;
    color: #666;
}

.pdf-fallback p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.hero-section {
    text-align: center;
    margin-bottom: 4rem;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    font-weight: 300;
}

.hero-description {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 3rem;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.hero-btn.primary {
    background: linear-gradient(135deg, #ff6b6b 0%, #ffd93d 100%);
    color: white;
}

.hero-btn.secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.hero-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.features-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    border: 2px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.birthday-status {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    border: 2px solid rgba(255, 255, 255, 0.2);
    margin-bottom: 2rem;
}

.birthday-arrived .birthday-title {
    color: white;
    font-size: 2rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.birthday-arrived .birthday-message {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.birthday-btn, .nav-btn {
    background: linear-gradient(135deg, #ff6b6b 0%, #ffd93d 100%);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    margin: 1rem;
}

.birthday-btn:hover, .nav-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* Big Wishes Button */
.big-wishes-button {
    text-align: center;
    margin: 2rem auto;
    animation: bigButtonPulse 2s ease-in-out infinite;
}

.big-wishes-btn {
    background: linear-gradient(135deg, #ff6b6b 0%, #ffd93d 100%);
    color: white;
    padding: 2rem 3rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.5rem;
    display: inline-block;
    transition: all 0.3s ease;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    border: 3px solid rgba(255, 255, 255, 0.3);
    text-align: center;
    line-height: 1.4;
}

.big-wishes-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

@keyframes bigButtonPulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    }
    50% { 
        transform: scale(1.02);
        box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
    }
}

.wishes-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    margin-left: 3rem;
}

.back-to-countdown {
    text-align: center;
}

.container {
    position: relative;
    z-index: 10;
    padding-top: 80px;
}

.section {
    min-height: 100vh;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    transform: translateY(50px);
    transition: all 1s ease-in-out;
}

.section.active {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.content {
    text-align: center;
    max-width: 800px;
    width: 100%;
}

.title {
    font-size: 3.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: titlePulse 2s ease-in-out infinite alternate;
}

@keyframes titlePulse {
    from { transform: scale(1); }
    to { transform: scale(1.05); }
}

.subtitle {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 3rem;
    font-weight: 300;
}

.countdown-container {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.countdown-item {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    min-width: 120px;
}

.countdown-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.countdown-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: white;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.countdown-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.date-display {
    margin-bottom: 3rem;
}

.date-display p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
}

.excitement-meter {
    margin-top: 2rem;
}

.meter-label {
    color: white;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.meter-bar {
    background: rgba(255, 255, 255, 0.2);
    height: 20px;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.meter-fill {
    background: linear-gradient(90deg, #ff6b6b, #ffd93d, #6bcf7f, #4ecdc4);
    height: 100%;
    border-radius: 10px;
    transition: width 0.5s ease;
    animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; }
}

/* Birthday Postcard Styles */
#birthday-section {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 50%, #fecfef 100%);
}

.postcard {
    perspective: 1000px;
    margin-bottom: 2rem;
}

.postcard-front {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    position: relative;
    max-width: 600px;
    margin: 0 auto;
    transform-style: preserve-3d;
    animation: postcardEntrance 1.5s ease-out;
}

@keyframes postcardEntrance {
    from {
        opacity: 0;
        transform: rotateY(-180deg) scale(0.5);
    }
    to {
        opacity: 1;
        transform: rotateY(0) scale(1);
    }
}

.postcard-header h1 {
    font-size: 2.5rem;
    color: #ff6b6b;
    text-align: center;
    margin-bottom: 2rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.birthday-decorations {
    position: relative;
    height: 100px;
    margin-bottom: 2rem;
}

.balloon, .confetti, .cake {
    position: absolute;
    font-size: 2rem;
    animation: float 3s ease-in-out infinite;
}

.balloon-1 {
    top: 0;
    left: 10%;
    color: #ff6b6b;
    animation-delay: 0s;
}

.balloon-2 {
    top: 20px;
    left: 30%;
    color: #4ecdc4;
    animation-delay: 0.5s;
}

.balloon-3 {
    top: 10px;
    right: 10%;
    color: #ffd93d;
    animation-delay: 1s;
}

.confetti-1 {
    top: 30px;
    left: 50%;
    animation-delay: 0.3s;
}

.confetti-2 {
    top: 0;
    right: 30%;
    animation-delay: 0.8s;
}

.cake {
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 3rem;
    animation-delay: 0.2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.birthday-message {
    text-align: center;
    color: #333;
}

.main-message {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: #555;
    line-height: 1.6;
}

.wishes-list {
    margin-bottom: 2rem;
}

.wish {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.8rem 1.5rem;
    margin: 0.5rem auto;
    border-radius: 25px;
    font-weight: 500;
    display: block;
    max-width: 90%;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    animation: wishAppear 0.6s ease-out;
    animation-fill-mode: both;
    text-align: left;
    line-height: 1.4;
}

.wish:nth-child(1) { animation-delay: 0.2s; }
.wish:nth-child(2) { animation-delay: 0.4s; }
.wish:nth-child(3) { animation-delay: 0.6s; }
.wish:nth-child(4) { animation-delay: 0.8s; }
.wish:nth-child(5) { animation-delay: 1.0s; }
.wish:nth-child(6) { animation-delay: 1.2s; }
.wish:nth-child(7) { animation-delay: 1.4s; }
.wish:nth-child(8) { animation-delay: 1.6s; }

@keyframes wishAppear {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.signature {
    font-size: 1.1rem;
    font-style: italic;
    color: #666;
    font-weight: 400;
    line-height: 1.6;
}

.postcard-stamp {
    position: absolute;
    top: 15px;
    right: 15px;
    z-index: 10;
}

.stamp {
    background: #ff6b6b;
    color: white;
    padding: 0.4rem 0.6rem;
    border-radius: 8px;
    font-size: 0.8rem;
    text-align: center;
    border: 2px dashed white;
    font-weight: 600;
    transform: rotate(15deg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.celebrate-button {
    background: linear-gradient(135deg, #ff6b6b 0%, #ffd93d 100%);
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.3rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    font-family: 'Poppins', sans-serif;
    animation: buttonPulse 2s ease-in-out infinite;
}

.celebrate-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

@keyframes buttonPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Epic Postcard Animation Effects */
.postcard.exploding {
    animation: postcardExplode 1.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.postcard.reinflating {
    animation: postcardReinflate 2s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

.postcard.hidden {
    opacity: 0;
    transform: scale(0);
    pointer-events: none;
}

@keyframes postcardExplode {
    0% {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
    25% {
        transform: scale(1.1) rotate(2deg);
        opacity: 0.9;
    }
    50% {
        transform: scale(1.3) rotate(-3deg);
        opacity: 0.7;
    }
    75% {
        transform: scale(2) rotate(5deg);
        opacity: 0.3;
        filter: blur(2px);
    }
    100% {
        transform: scale(5) rotate(10deg);
        opacity: 0;
        filter: blur(8px);
    }
}

@keyframes postcardReinflate {
    0% {
        transform: scale(0.1) rotate(180deg);
        opacity: 0;
        filter: blur(8px) hue-rotate(180deg);
    }
    25% {
        transform: scale(0.3) rotate(90deg);
        opacity: 0.3;
        filter: blur(4px) hue-rotate(90deg);
    }
    50% {
        transform: scale(0.6) rotate(45deg);
        opacity: 0.6;
        filter: blur(2px) hue-rotate(45deg);
    }
    75% {
        transform: scale(0.9) rotate(10deg);
        opacity: 0.8;
        filter: blur(1px) hue-rotate(10deg);
    }
    90% {
        transform: scale(1.05) rotate(-2deg);
        opacity: 0.95;
        filter: blur(0px) hue-rotate(0deg);
    }
    100% {
        transform: scale(1) rotate(0deg);
        opacity: 1;
        filter: blur(0px) hue-rotate(0deg);
    }
}

/* Particle Explosion Effects */
.particle {
    position: absolute;
    pointer-events: none;
    z-index: 1000;
    border-radius: 50%;
}

.particle.birthday-emoji {
    font-size: 1.5rem;
    border-radius: 0;
}

@keyframes particleExplode {
    0% {
        transform: scale(0) rotate(0deg);
        opacity: 1;
    }
    10% {
        transform: scale(1.2) rotate(45deg);
        opacity: 1;
    }
    100% {
        transform: scale(0.5) rotate(360deg);
        opacity: 0;
    }
}

/* Shockwave Effect */
.shockwave {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    border: 3px solid rgba(255, 215, 0, 0.8);
    border-radius: 50%;
    animation: shockwaveExpand 1s ease-out forwards;
    pointer-events: none;
    z-index: 999;
}

@keyframes shockwaveExpand {
    0% {
        width: 10px;
        height: 10px;
        opacity: 1;
    }
    100% {
        width: 1000px;
        height: 1000px;
        opacity: 0;
        border-width: 1px;
    }
}

/* Screen Flash Effect */
.screen-flash {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: radial-gradient(circle, rgba(255,255,255,0.9) 0%, rgba(255,215,0,0.6) 50%, transparent 70%);
    opacity: 0;
    pointer-events: none;
    z-index: 9999;
    animation: screenFlash 0.8s ease-out forwards;
}

@keyframes screenFlash {
    0% { opacity: 0; }
    30% { opacity: 1; }
    100% { opacity: 0; }
}

/* Background Animation */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.floating-element {
    position: absolute;
    font-size: 2rem;
    opacity: 0.6;
    animation: backgroundFloat 10s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    top: 20%;
    right: 10%;
    animation-delay: 2s;
}

.floating-element:nth-child(3) {
    top: 60%;
    left: 5%;
    animation-delay: 4s;
}

.floating-element:nth-child(4) {
    top: 70%;
    right: 20%;
    animation-delay: 6s;
}

.floating-element:nth-child(5) {
    top: 40%;
    left: 70%;
    animation-delay: 8s;
}

.floating-element:nth-child(6) {
    top: 80%;
    left: 40%;
    animation-delay: 1s;
}

@keyframes backgroundFloat {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    25% {
        transform: translateY(-20px) rotate(5deg);
    }
    50% {
        transform: translateY(-40px) rotate(-5deg);
    }
    75% {
        transform: translateY(-20px) rotate(3deg);
    }
}

/* Minigame Styles */
.minigame-container {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 2rem;
    margin-top: 3rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.minigame-title {
    color: white;
    font-size: 1.8rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.minigame-subtitle {
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.game-stats {
    display: flex;
    justify-content: space-around;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.stat {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.8rem 1.5rem;
    border-radius: 15px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.3);
    min-width: 100px;
}

.stat-label {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}

.stat-label + span {
    color: white;
    font-weight: 700;
    font-size: 1.2rem;
}

/* Memory Game Board */
.memory-game-board {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin: 2rem 0;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.memory-card {
    aspect-ratio: 1;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 12px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    font-size: 1.2rem;
    font-weight: 600;
    color: #333;
    transition: all 0.3s ease;
    transform-style: preserve-3d;
    position: relative;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    min-height: 80px;
}

.memory-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.memory-card.flipped {
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white;
    transform: rotateY(180deg);
}

.memory-card.matched {
    background: linear-gradient(135deg, #FFD700, #FFA000);
    color: white;
    animation: matchPulse 0.6s ease-out;
    pointer-events: none;
}

.memory-card.disabled {
    pointer-events: none;
    opacity: 0.7;
}

.card-front, .card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    backface-visibility: hidden;
    border-radius: 12px;
}

.card-front {
    background: rgba(255, 255, 255, 0.9);
    color: #666;
    font-size: 1.5rem;
}

.card-back {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: rotateY(180deg);
}

.card-icon {
    font-size: 1.8rem;
    margin-bottom: 0.3rem;
}

.card-label {
    font-size: 0.7rem;
    text-align: center;
    font-weight: 500;
    line-height: 1.1;
}

@keyframes matchPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes cardFlip {
    0% { transform: rotateY(0); }
    50% { transform: rotateY(90deg); }
    100% { transform: rotateY(180deg); }
}

.memory-card.flipping {
    animation: cardFlip 0.6s ease-in-out;
}

.game-btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.game-btn.primary {
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white;
}

.game-btn.secondary {
    background: linear-gradient(135deg, #2196F3, #1976D2);
    color: white;
}

.game-btn.hint {
    background: linear-gradient(135deg, #FF9800, #F57C00);
    color: white;
    padding: 1rem 1.5rem;
}

.game-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

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

.game-controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.feedback {
    text-align: center;
    padding: 1rem;
    border-radius: 15px;
    margin-bottom: 1rem;
    font-weight: 600;
    animation: feedbackSlide 0.5s ease-out;
}

.feedback.correct {
    background: rgba(76, 175, 80, 0.2);
    color: #4CAF50;
    border: 2px solid rgba(76, 175, 80, 0.5);
}

.feedback.incorrect {
    background: rgba(244, 67, 54, 0.2);
    color: #f44336;
    border: 2px solid rgba(244, 67, 54, 0.5);
}

.feedback.info {
    background: rgba(33, 150, 243, 0.2);
    color: #2196F3;
    border: 2px solid rgba(33, 150, 243, 0.5);
}

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

.hint-text {
    background: rgba(255, 193, 7, 0.2);
    color: #FFC107;
    padding: 1rem;
    border-radius: 15px;
    text-align: center;
    border: 2px solid rgba(255, 193, 7, 0.5);
    margin-bottom: 1rem;
    font-style: italic;
}

.achievement-display {
    margin-bottom: 1.5rem;
}

.achievement-title {
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 1rem;
}

.achievements {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.achievement {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 1rem 0.5rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.achievement.unlocked {
    background: rgba(255, 215, 0, 0.2);
    border-color: rgba(255, 215, 0, 0.5);
    animation: achievementUnlock 0.8s ease-out;
}

.achievement.locked {
    opacity: 0.5;
}

.achievement-icon {
    display: block;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.achievement-name {
    color: white;
    font-size: 0.8rem;
    font-weight: 500;
}

@keyframes achievementUnlock {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.leaderboard {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 15px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.leaderboard h4 {
    color: white;
    margin: 0;
    font-size: 1.1rem;
}

#high-score {
    color: #FFD700;
    font-weight: 700;
}

.best-time {
    margin: 0.5rem 0 0 0;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
}

#best-time {
    color: #4CAF50;
    font-weight: 600;
}

/* Enhanced Responsive Design */
@media (max-width: 1024px) {
    .minigame-container {
        margin-top: 2rem;
        padding: 1.5rem;
    }
    
    .game-stats {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .page-nav {
        padding: 0.5rem 1rem;
        gap: 1rem;
        flex-wrap: wrap;
    }
    
    .nav-link {
        padding: 0.3rem 0.8rem;
        font-size: 0.9rem;
    }
    
    .landing-content {
        padding-top: 120px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-btn {
        width: 100%;
        max-width: 250px;
        text-align: center;
    }
    
    .pdf-title {
        font-size: 1.8rem;
    }
    
    .pdf-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .pdf-container {
        padding: 0.5rem;
    }
    
    .pdf-container embed {
        height: 600px;
    }
    
    .title {
        font-size: 2.5rem;
    }
    
    .countdown-container {
        gap: 1rem;
    }
    
    .countdown-item {
        padding: 1.5rem 1rem;
        min-width: 100px;
    }
    
    .countdown-number {
        font-size: 2rem;
    }
    
    .minigame-container {
        margin-top: 2rem;
        padding: 1.5rem;
    }
    
    .minigame-title {
        font-size: 1.5rem;
    }
    
    .game-stats {
        flex-direction: column;
        align-items: center;
    }
    
    .stat {
        min-width: 150px;
    }
    
    .answer-input {
        flex-direction: column;
    }
    
    #puzzle-answer {
        min-width: unset;
        width: 100%;
    }
    
    .game-controls {
        flex-direction: column;
        align-items: center;
    }
    
    .game-btn {
        width: 100%;
        max-width: 250px;
    }
    
    .achievements {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .memory-game-board {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
        padding: 0.5rem;
    }
    
    .memory-card {
        min-height: 70px;
    }
    
    .card-icon {
        font-size: 1.4rem;
    }
    
    .card-label {
        font-size: 0.6rem;
    }
    
    .postcard-front {
        padding: 2rem 1.5rem;
        margin: 0 1rem;
    }
    
    .postcard-header h1 {
        font-size: 2rem;
    }
    
    .wishes-list {
        text-align: center;
    }
    
    .wish {
        display: block;
        margin: 0.5rem auto;
        max-width: 300px;
    }
    
    .wishes-actions {
        margin-left: 1rem;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 2rem;
    }
    
    .countdown-container {
        gap: 0.5rem;
    }
    
    .countdown-item {
        padding: 1rem 0.5rem;
        min-width: 80px;
    }
    
    .countdown-number {
        font-size: 1.5rem;
    }
    
    .countdown-label {
        font-size: 0.8rem;
    }
    
    .memory-game-board {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.3rem;
    }
    
    .memory-card {
        min-height: 60px;
    }
    
    .card-icon {
        font-size: 1.2rem;
    }
    
    .card-label {
        font-size: 0.55rem;
    }
    
    .wishes-actions {
        margin-left: 0.5rem;
    }
}