/* Common styles shared across all slides */

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    height: 100%;
    /* Removed overflow: hidden to allow individual slides to control their own scrolling */
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

/* Slide container base */
.slide {
    width: 100vw;
    min-height: 100vh; /* Changed from height to min-height to allow content to expand */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 60px;
    color: white;
    overflow-x: hidden; /* Prevent horizontal scroll */
    /* Individual slides can override with overflow-y: auto when needed */
}

/* Typography base styles */
h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    text-align: center;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1.2rem;
    text-align: center;
}

h3 {
    font-size: clamp(1.2rem, 2.5vw, 2rem);
    font-weight: 500;
    line-height: 1.4;
    margin-bottom: 1rem;
}

p {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    line-height: 1.6;
    margin-bottom: 1rem;
}

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

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Animation utility classes */
.animate-fadeInUp {
    animation: fadeInUp 0.8s ease-out forwards;
}

.animate-fadeIn {
    animation: fadeIn 1s ease-out forwards;
}

.animate-slideInLeft {
    animation: slideInLeft 0.8s ease-out forwards;
}

.animate-slideInRight {
    animation: slideInRight 0.8s ease-out forwards;
}

.animate-scaleIn {
    animation: scaleIn 0.6s ease-out forwards;
}

/* Animation delays */
.delay-1 {
    animation-delay: 0.2s;
    opacity: 0;
}

.delay-2 {
    animation-delay: 0.4s;
    opacity: 0;
}

.delay-3 {
    animation-delay: 0.6s;
    opacity: 0;
}

.delay-4 {
    animation-delay: 0.8s;
    opacity: 0;
}

.delay-5 {
    animation-delay: 1s;
    opacity: 0;
}

.delay-6 {
    animation-delay: 1.2s;
    opacity: 0;
}

.delay-7 {
    animation-delay: 1.4s;
    opacity: 0;
}

.delay-8 {
    animation-delay: 1.6s;
    opacity: 0;
}

.delay-9 {
    animation-delay: 1.8s;
    opacity: 0;
}

.delay-10 {
    animation-delay: 2s;
    opacity: 0;
}

.delay-11 {
    animation-delay: 2.2s;
    opacity: 0;
}

.delay-12 {
    animation-delay: 2.4s;
    opacity: 0;
}

/* Glass morphism effect */
.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 30px;
}

/* Gradient text effect */
.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Button styles */
.button {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.button-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.button-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

/* Responsive utilities */
@media (max-width: 768px) {
    .slide {
        padding: 30px;
    }
}

/* Loading animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 2s infinite;
}