@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

body {
    font-family: 'Inter', sans-serif;
    background: #000;
    overflow: hidden;
    color: #fff;
}

.carousel-container {
    width: 100vw;
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slides-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.6s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 40px;
}

    .slide.active {
        opacity: 1;
        z-index: 1;
    }

/* Slide backgrounds with unique gradients for each day */
.slide-bg-1 {
    background: linear-gradient(135deg, #0A0E27 0%, #1a0f3f 50%, #2d1b5e 100%);
}

.slide-bg-2 {
    background: linear-gradient(135deg, #0A0E27 0%, #0f1a2e 100%);
}

.slide-bg-3 {
    background: linear-gradient(135deg, #0A0E27 0%, #12182b 100%);
}

.slide-bg-4 {
    background: linear-gradient(135deg, #0A0E27 0%, #1a1038 100%);
}

.slide-bg-5 {
    background: linear-gradient(135deg, #1a0f3f 0%, #0A0E27 100%);
}

.slide-bg-6 {
    background: linear-gradient(135deg, #0A0E27 0%, #0d1420 100%);
}

.slide-bg-7 {
    background: linear-gradient(135deg, #0A0E27 0%, #1a1520 100%);
}

.slide-bg-8 {
    background: #000;
}

/* Grid overlay */
.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(rgba(78, 255, 255, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(78, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
    pointer-events: none;
}

/* Hook slide styles */
.old-way {
    /*    font-size: clamp(40px, 8vw, 100px);

*/
    font-size: clamp(20px, 5vw, 120px);
    overflow-wrap: anywhere;
    font-weight: 800;
    color: #444;
    text-decoration: line-through;
    text-decoration-thickness: 4px;
    letter-spacing: -2px;
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease;
}

.new-way {
    /*    font-size: clamp(50px, 10vw, 120px);
*/
    font-size: clamp(26px, 7vw, 120px);
    overflow-wrap: anywhere;
    font-weight: 800;
    color: #4EFFFF;
    letter-spacing: -3px;
    text-shadow: 0 0 40px rgba(78, 255, 255, 0.5);
    animation: glowPulse 3s ease-in-out infinite, fadeInUp 0.8s ease 0.3s both;
}

.subtitle {
    font-size: clamp(16px, 2.5vw, 24px);
    font-weight: 300;
    color: #999;
    margin-top: 30px;
    animation: fadeInUp 0.8s ease 0.6s both;
}

/* Content block styles */
.content-block {
    max-width: 900px;
    width: 100%;
    text-align: left;
}

    .content-block h2 {
        font-size: clamp(28px, 5vw, 48px);
        font-weight: 700;
        color: #fff;
        margin-bottom: 30px;
        letter-spacing: -1px;
    }

    .content-block p {
        font-size: clamp(18px, 2.5vw, 24px);
        line-height: 1.8;
        font-weight: 300;
        color: #d0d0d0;
        margin-bottom: 30px;
    }

        .content-block p strong {
            color: #4EFFFF;
            font-weight: 600;
        }

/* Emphasis text */
.emphasis-text {
    font-size: clamp(24px, 4vw, 42px);
    line-height: 1.5;
    font-weight: 600;
    color: #fff;
    text-align: center;
    max-width: 900px;
    margin: 40px 0;
}

    .emphasis-text .highlight {
        color: #4EFFFF;
        text-shadow: 0 0 20px rgba(78, 255, 255, 0.3);
    }

/* Split screen styles */
.split-container {
    display: flex;
    width: 100%;
    max-width: 1200px;
    height: 70%;
    gap: 40px;
    align-items: center;
}

.split-left {
    flex: 0 0 35%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0.4;
}

.split-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.old-icon {
    font-size: 80px;
    margin-bottom: 20px;
    filter: grayscale(100%);
}

.old-label {
    font-size: 18px;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Code stream animation */
.code-stream {
    position: relative;
    width: 100%;
    height: 400px;
}

.code-line {
    position: absolute;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: #4EFFFF;
    opacity: 0;
    animation: streamFlow 4s linear infinite;
    text-shadow: 0 0 10px rgba(78, 255, 255, 0.8);
}

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

    .code-line:nth-child(2) {
        animation-delay: 0.5s;
        top: 30%;
        left: 20%;
    }

    .code-line:nth-child(3) {
        animation-delay: 1s;
        top: 50%;
        left: 15%;
    }

    .code-line:nth-child(4) {
        animation-delay: 1.5s;
        top: 70%;
        left: 25%;
    }

    .code-line:nth-child(5) {
        animation-delay: 2s;
        top: 20%;
        right: 20%;
    }

    .code-line:nth-child(6) {
        animation-delay: 2.5s;
        top: 40%;
        right: 15%;
    }

    .code-line:nth-child(7) {
        animation-delay: 3s;
        top: 60%;
        right: 25%;
    }

    .code-line:nth-child(8) {
        animation-delay: 3.5s;
        top: 80%;
        right: 10%;
    }

/* Magnetism visualization */
.magnet-field {
    position: relative;
    width: 500px;
    height: 500px;
    max-width: 90vw;
    max-height: 60vh;
}

.magnet-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: #4EFFFF;
    border-radius: 50%;
    box-shadow: 0 0 40px rgba(78, 255, 255, 0.8);
    z-index: 2;
}

.magnet-particle {
    position: absolute;
    width: 12px;
    height: 12px;
    background: rgba(78, 255, 255, 0.6);
    border-radius: 50%;
    animation: pullToCenter 3s ease-in-out infinite;
}

    .magnet-particle:nth-child(2) {
        top: 10%;
        left: 20%;
        animation-delay: 0.2s;
    }

    .magnet-particle:nth-child(3) {
        top: 15%;
        right: 25%;
        animation-delay: 0.4s;
    }

    .magnet-particle:nth-child(4) {
        bottom: 20%;
        left: 15%;
        animation-delay: 0.6s;
    }

    .magnet-particle:nth-child(5) {
        bottom: 25%;
        right: 20%;
        animation-delay: 0.8s;
    }

    .magnet-particle:nth-child(6) {
        top: 50%;
        left: 5%;
        animation-delay: 1s;
    }

    .magnet-particle:nth-child(7) {
        top: 50%;
        right: 5%;
        animation-delay: 1.2s;
    }

/* Architecture loops */
.architecture-diagram {
    position: relative;
    width: 600px;
    height: 400px;
    max-width: 90vw;
}

.loop-arrow {
    position: absolute;
    width: 150px;
    height: 150px;
    border: 3px solid #4EFFFF;
    border-radius: 50%;
    border-right-color: transparent;
    border-bottom-color: transparent;
    animation: rotateLoop 4s linear infinite;
    opacity: 0.7;
}

    .loop-arrow:nth-child(1) {
        top: 20%;
        left: 20%;
        animation-delay: 0s;
    }

    .loop-arrow:nth-child(2) {
        top: 20%;
        right: 20%;
        animation-delay: 0.5s;
        transform: rotate(90deg);
    }

    .loop-arrow:nth-child(3) {
        bottom: 20%;
        left: 30%;
        animation-delay: 1s;
        transform: rotate(180deg);
    }

.thread-line {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, transparent, #4EFFFF, transparent);
    animation: threadPulse 3s ease-in-out infinite;
}

    .thread-line:nth-child(4) {
        top: 35%;
        left: 0;
        right: 0;
    }

    .thread-line:nth-child(5) {
        top: 65%;
        left: 0;
        right: 0;
        animation-delay: 0.5s;
    }

/* List styles */
.concept-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin: 30px 0;
}

.concept-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

    .concept-item:nth-child(1) {
        animation-delay: 0.2s;
    }

    .concept-item:nth-child(2) {
        animation-delay: 0.4s;
    }

    .concept-item:nth-child(3) {
        animation-delay: 0.6s;
    }

    .concept-item:nth-child(4) {
        animation-delay: 0.8s;
    }

.concept-dot {
    width: 12px;
    height: 12px;
    background: #4EFFFF;
    border-radius: 50%;
    margin-top: 8px;
    box-shadow: 0 0 20px rgba(78, 255, 255, 0.6);
    flex-shrink: 0;
}

.concept-text {
    font-size: clamp(16px, 2vw, 22px);
    line-height: 1.7;
    font-weight: 300;
    color: #e0e0e0;
}

/* Closing section */
.closing-container {
    text-align: center;
    max-width: 900px;
}

.closing-headline {
    font-size: clamp(24px, 4vw, 52px);
    line-height: 1.4;
    font-weight: 600;
    color: #fff;
    margin-bottom: 60px;
    letter-spacing: -1px;
}

.logo-container {
    margin: 60px 0;
}

.promocore-logo {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 800;
    color: #4EFFFF;
    letter-spacing: 2px;
    text-shadow: 0 0 40px rgba(78, 255, 255, 0.5);
}

.cta-text {
    font-size: 16px;
    color: #999;
    margin-top: 40px;
}

    .cta-text a {
        color: #4EFFFF;
        text-decoration: none;
        transition: color 0.3s ease;
    }

        .cta-text a:hover {
            color: #fff;
        }

/* Navigation */
.nav-container {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 30px;
    align-items: center;
    z-index: 10;
}

.nav-btn {
    width: 50px;
    height: 50px;
    border: 2px solid #4EFFFF;
    background: rgba(78, 255, 255, 0.1);
    color: #4EFFFF;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

    .nav-btn:hover:not(:disabled) {
        background: rgba(78, 255, 255, 0.2);
        transform: scale(1.1);
    }

    .nav-btn:disabled {
        opacity: 0.3;
        cursor: not-allowed;
    }

.slide-counter {
    font-size: 18px;
    color: #4EFFFF;
    font-weight: 500;
    min-width: 80px;
    text-align: center;
}

.progress-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: #4EFFFF;
    transition: width 0.3s ease;
    box-shadow: 0 0 10px rgba(78, 255, 255, 0.8);
}

/* Watermark */
.watermark {
    position: absolute;
    top: 30px;
    right: 30px;
    font-size: 12px;
    color: rgba(78, 255, 255, 0.4);
    letter-spacing: 2px;
    z-index: 5;
}

.day-badge {
    position: absolute;
    bottom: 20px;
    left: 30px;
    font-size: 14px;
    color: rgba(78, 255, 255, 0.6);
    font-weight: 600;
    z-index: 5;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes glowPulse {
    0%, 100% {
        text-shadow: 0 0 40px rgba(78, 255, 255, 0.5);
    }

    50% {
        text-shadow: 0 0 60px rgba(78, 255, 255, 0.8);
    }
}

@keyframes streamFlow {
    0% {
        opacity: 0;
        transform: translateX(-50px) translateY(-50px);
    }

    20% {
        opacity: 1;
    }

    80% {
        opacity: 1;
    }

    100% {
        opacity: 0;
        transform: translateX(50px) translateY(50px);
    }
}

@keyframes pullToCenter {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 0.6;
    }

    50% {
        transform: translate(calc(250px - 50%), calc(250px - 50%)) scale(0.5);
        opacity: 1;
    }

    100% {
        transform: translate(calc(250px - 50%), calc(250px - 50%)) scale(0);
        opacity: 0;
    }
}

@keyframes rotateLoop {
    0% {
        transform: rotate(0deg);
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }

    100% {
        transform: rotate(360deg);
        opacity: 0.5;
    }
}

@keyframes threadPulse {
    0%, 100% {
        opacity: 0.3;
        transform: scaleX(0.8);
    }

    50% {
        opacity: 0.8;
        transform: scaleX(1);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .slide {
        padding: 40px 20px;
    }

    .nav-container {
        bottom: 20px;
    }

    .day-badge {
        bottom: 80px;
        left: 20px;
        font-size: 12px;
    }
}