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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #000;
    margin: 0;
    padding: 0;
}


/* Page Container */
.page {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease;
    overflow: hidden;
    z-index: 1;
}

.page.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

#landing-page {
    z-index: 1;
}

#landing-page.transitioning {
    z-index: 3;
}

#promo-page {
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
    z-index: 2;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    padding-bottom: 100px;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
}

#promo-page::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

#promo-page.active {
    z-index: 4;
}

#promo-video {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    min-width: 100vw !important;
    min-height: 100vh !important;
    max-width: 100vw !important;
    max-height: 100vh !important;
    z-index: 1 !important;
    object-fit: cover !important;
    transform: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

#promo-page .overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 2 !important;
    background: rgba(0, 0, 0, 0.4) !important;
    margin: 0 !important;
    padding: 0 !important;
}

/* Video Background */
.video-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    min-width: 100vw;
    min-height: 100vh;
    transform: none;
    z-index: 1;
    object-fit: cover;
    will-change: transform, filter;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

#landing-page .video-background {
    opacity: 0.75;
}

.video-background.speed-up {
    animation: motionBlur 3s cubic-bezier(0.4, 0.0, 1.0, 1.0) forwards;
}

/* Burst wiggle effect - quick intense shake */
.video-background.burst-wiggle {
    animation: burstWiggle 0.3s ease-in-out forwards;
}

@keyframes burstWiggle {
    0% { transform: translate(0, 0); }
    10% { transform: translate(-2px, 2px); }
    20% { transform: translate(2px, -2px); }
    30% { transform: translate(-2px, -1px); }
    40% { transform: translate(2px, 1px); }
    50% { transform: translate(-1px, -2px); }
    60% { transform: translate(1px, 2px); }
    70% { transform: translate(-2px, 1px); }
    80% { transform: translate(2px, -1px); }
    90% { transform: translate(-1px, 1px); }
    100% { transform: translate(0, 0); }
}

.video-background.fade-out {
    animation: videoFadeOut 2s ease-out forwards;
}

@keyframes videoFadeOut {
    0% {
        opacity: 1;
    }
    30% {
        opacity: 0.6;
    }
    60% {
        opacity: 0.2;
    }
    100% {
        opacity: 0;
    }
}

@keyframes motionBlur {
    0% {
        filter: blur(0px) brightness(1);
    }
    33% {
        filter: blur(0px) brightness(1);
    }
    45% {
        filter: blur(2px) brightness(1.02);
    }
    60% {
        filter: blur(8px) brightness(1.08);
    }
    75% {
        filter: blur(25px) brightness(1.15);
    }
    90% {
        filter: blur(50px) brightness(1.25);
    }
    100% {
        filter: blur(80px) brightness(1.4);
    }
}

@keyframes wiggle {
    0% {
        transform: translate(0, 0) rotate(0deg) scale(1);
    }
    3% {
        transform: translate(3px, 2px) rotate(0.2deg) scale(1);
    }
    6% {
        transform: translate(-3px, -2px) rotate(-0.2deg) scale(1);
    }
    10% {
        transform: translate(4px, 3px) rotate(0.3deg) scale(1);
    }
    13% {
        transform: translate(-4px, -3px) rotate(-0.3deg) scale(1);
    }
    16% {
        transform: translate(5px, 4px) rotate(0.4deg) scale(1);
    }
    20% {
        transform: translate(-5px, -4px) rotate(-0.4deg) scale(1);
    }
    23% {
        transform: translate(6px, 5px) rotate(0.5deg) scale(1);
    }
    26% {
        transform: translate(-6px, -5px) rotate(-0.5deg) scale(1);
    }
    30% {
        transform: translate(7px, 6px) rotate(0.6deg) scale(1.01);
    }
    35% {
        transform: translate(-7px, -6px) rotate(-0.6deg) scale(1.01);
    }
    40% {
        transform: translate(8px, 7px) rotate(0.7deg) scale(1.01);
    }
    45% {
        transform: translate(-8px, -7px) rotate(-0.7deg) scale(1.01);
    }
    50% {
        transform: translate(9px, 8px) rotate(0.8deg) scale(1.02);
    }
    55% {
        transform: translate(-9px, -8px) rotate(-0.8deg) scale(1.02);
    }
    60% {
        transform: translate(10px, 9px) rotate(0.9deg) scale(1.02);
    }
    65% {
        transform: translate(-10px, -9px) rotate(-0.9deg) scale(1.02);
    }
    70% {
        transform: translate(12px, 10px) rotate(1deg) scale(1.03);
    }
    75% {
        transform: translate(-12px, -10px) rotate(-1deg) scale(1.03);
    }
    80% {
        transform: translate(14px, 12px) rotate(1.2deg) scale(1.03);
    }
    85% {
        transform: translate(-14px, -12px) rotate(-1.2deg) scale(1.03);
    }
    90% {
        transform: translate(16px, 14px) rotate(1.4deg) scale(1.04);
    }
    95% {
        transform: translate(-16px, -14px) rotate(-1.4deg) scale(1.04);
    }
    100% {
        transform: translate(0, 0) rotate(0deg) scale(1.05);
    }
}

/* Overlay */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 2;
}

/* Site Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: linear-gradient(to bottom, rgba(26, 32, 44, 1) 25%, rgba(26, 32, 44, 0) 100%);
    z-index: 10002;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 0 2rem;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.site-header.show {
    display: flex;
    opacity: 1;
}

.header-logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.header-logo img {
    height: 30px;
    width: auto;
}

/* Landing Page Content */
.content {
    position: relative;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    text-align: center;
    padding: 30px;
}

/* Title Container - Two Line Title */
.title-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
    animation: zoomIn 1s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.title-container:not(.fade-out) {
    opacity: 1 !important;
    transform: scale(1) !important;
}

.title-container.fade-out {
    animation: titleFadeOut 1s ease-out forwards !important;
}

.title-line-1 {
    font-size: clamp(1.2rem, 3vw, 2rem);
    font-weight: 600;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    margin: 0;
    background: linear-gradient(45deg, #ffcd52, #ff7500, #ffcd52);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease infinite;
}

.title-logo {
    width: clamp(290px, 70vw, 700px);
    height: auto;
}


/* CTA Button */
.content .cta-button {
    animation: zoomIn 1s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    animation-delay: 0.5s;
}

.content .cta-button:not(.fade-out) {
    opacity: 1 !important;
    transform: scale(1) !important;
}

.content .cta-button.fade-out {
    animation: buttonFadeOut 1s ease-out forwards !important;
}

@keyframes titleFadeOut {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(0.9);
    }
}

@keyframes buttonFadeOut {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(0.85);
    }
}

@keyframes zoomIn {
    0% {
        opacity: 0;
        transform: scale(0.8);
    }
    60% {
        opacity: 1;
        transform: scale(1.05);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.title {
    font-size: clamp(2.5rem, 8vw, 6rem);
    font-weight: 900;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5),
                 0 0 40px rgba(255, 255, 255, 0.3),
                 0 0 60px rgba(255, 255, 255, 0.2);
    margin-bottom: 3rem;
    background: linear-gradient(45deg, #fff, #a8dadc, #fff);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease infinite;
    will-change: background-position;
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.cta-button {
    padding: 0.9rem 1.8rem;
    font-size: clamp(1rem, 3vw, 1.8rem);
    font-weight: 900;
    color: #ff0000;
    background: linear-gradient(135deg, 
        rgb(180, 180, 180) 0%,
        rgb(220, 220, 220) 25%,
        rgb(255, 255, 255) 50%,
        rgb(220, 220, 220) 75%,
        rgb(180, 180, 180) 100%);
    background-size: 200% 200%;
    border: 2px solid rgba(192, 192, 192, 0.6);
    border-radius: 50px;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    box-shadow: 
    	0 0 15px rgba(212, 175, 55, 0.35),    /* soft main gold glow */
    	0 0 30px rgba(212, 160, 45, 0.25),    /* secondary glow */
    	0 0 45px rgba(200, 145, 30, 0.15),    /* outer cosmic gold */

    inset 0 20px 40px rgba(255, 220, 120, 0.15); /* gentle inner top glow */
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    animation: neonPulse 2s ease-in-out infinite, metalShine 3s linear infinite;
}

@keyframes neonPulse {
    0%, 100% {
        box-shadow: 
            0 0 15px rgba(192, 192, 192, 0.4),
            0 0 30px rgba(192, 192, 192, 0.3),
            0 0 45px rgba(192, 192, 192, 0.2),
            inset 0 0 10px rgba(255, 255, 255, 0.1),
            inset 0 -20px 40px rgba(0, 0, 0, 0.2),
            inset 0 20px 40px rgba(255, 255, 255, 0.15);
    }
    50% {
        box-shadow: 
            0 0 25px rgba(192, 192, 192, 0.6),
            0 0 50px rgba(192, 192, 192, 0.4),
            0 0 75px rgba(192, 192, 192, 0.3),
            inset 0 0 15px rgba(255, 255, 255, 0.2),
            inset 0 -20px 40px rgba(0, 0, 0, 0.2),
            inset 0 20px 40px rgba(255, 255, 255, 0.15);
    }
}

@keyframes metalShine {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.button-text-mobile {
    display: none;
}

.button-text-full {
    display: inline;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(192, 192, 192, 0.3), rgba(220, 220, 220, 0.1));
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    z-index: 0;
}

.cta-button span {
    position: relative;
    z-index: 1;
}

.cta-button:hover {
    transform: scale(1.08);
    border-color: rgba(192, 192, 192, 0.9);
    background: linear-gradient(135deg, 
        rgb(200, 200, 200) 0%,
        rgb(240, 240, 240) 25%,
        rgb(255, 255, 255) 50%,
        rgb(240, 240, 240) 75%,
        rgb(200, 200, 200) 100%);
    background-size: 200% 200%;
    box-shadow: 
        0 0 30px rgba(192, 192, 192, 0.6),
        0 0 60px rgba(192, 192, 192, 0.5),
        0 0 90px rgba(192, 192, 192, 0.4),
        inset 0 0 20px rgba(255, 255, 255, 0.3),
        inset 0 -20px 40px rgba(0, 0, 0, 0.15),
        inset 0 20px 40px rgba(255, 255, 255, 0.2);
    animation: metalShine 2s linear infinite;
}

.cta-button:hover::before {
    width: 400px;
    height: 400px;
}

.cta-button:active {
    transform: scale(0.95);
    box-shadow: 
        0 0 40px rgba(192, 192, 192, 0.8),
        0 0 80px rgba(192, 192, 192, 0.7),
        0 0 120px rgba(192, 192, 192, 0.5),
        inset 0 0 30px rgba(255, 255, 255, 0.3);
    animation: clickPulse 0.3s ease-out;
}

@keyframes clickPulse {
    0% {
        box-shadow: 
            0 0 40px rgba(192, 192, 192, 0.8),
            0 0 80px rgba(192, 192, 192, 0.7),
            0 0 120px rgba(192, 192, 192, 0.5),
            inset 0 0 30px rgba(255, 255, 255, 0.3);
    }
    50% {
        box-shadow: 
            0 0 60px rgba(192, 192, 192, 1),
            0 0 120px rgba(192, 192, 192, 0.9),
            0 0 180px rgba(192, 192, 192, 0.7),
            inset 0 0 50px rgba(255, 255, 255, 0.5);
    }
    100% {
        box-shadow: 
            0 0 40px rgba(192, 192, 192, 0.8),
            0 0 80px rgba(192, 192, 192, 0.7),
            0 0 120px rgba(192, 192, 192, 0.5),
            inset 0 0 30px rgba(255, 255, 255, 0.3);
    }
}

/* White Flare Transition - CPU optimized */
.flare {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #ffffff;
    z-index: 10000;
    pointer-events: none;
    opacity: 0;
}

.flare.active {
    animation: flareFade 1.5s ease-out forwards;
}

@keyframes flareFade {
    0% {
        opacity: 0;
    }
    33% {
        opacity: 0.8;
    }
    66% {
        opacity: 0.8;
    }
    100% {
        opacity: 0;
    }
}

/* Back Button */
.back-button {
    position: absolute;
    left: 0;
    margin-left: 14px;
    margin-top: 14px;
    display: none;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50px;
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 255, 255, 0.2);
    border: none;
}

.back-button.show {
    display: flex;
}

.back-button:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateX(-5px) scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.back-button:active {
    transform: translateX(-5px) scale(0.98);
}

.back-button svg {
    width: 20px;
    height: 20px;
}

@keyframes slideInLeft {
    to {
        opacity: 1 !important;
        transform: translateX(0);
    }
}

.back-button.visible {
    opacity: 1 !important;
    transform: translateX(0) !important;
}

/* Promotion Page */
.promo-content {
    position: relative;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 4rem 4rem;
    min-height: 100vh;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    box-sizing: border-box;
}

.promo-title {
    margin-top: 70px;
    margin-bottom: 3rem;
    text-align: center;
    width: 90%;
    max-width: 450px;
}

.promo-title img {
    width: 100%;
    height: auto;
}

/* Cards Container */
.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    width: 100%;
    padding: 0;
    margin: 0 auto;
    box-sizing: border-box;
}

/* Card Styles - Dark Cosmic Theme */
.card {
    background: linear-gradient(145deg, rgba(14, 17, 23, 0.4), rgba(27, 33, 43, 0.4));
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    border: 2px solid rgba(212, 175, 55, 0.5); /* 0.5 is 50% opacity */
    border-radius: 24px;
    padding: 0;
    transition: all 0.4s ease;
    cursor: pointer;
    opacity: 0;
    transform: scale(0.3) translateY(30px);
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(180, 140, 40, 0.35),   /* main gold shadow - dimmer */
                0 0 20px rgba(180, 140, 40, 0.2),       /* secondary glow - subtle */
                0 0 40px rgba(200, 160, 60, 0.15),      /* outer gold glow - softer */
                inset 0 1px 0 rgba(220, 200, 150, 0.15); /* subtle inner highlight */
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(138, 180, 248, 0.1), transparent 50%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.card:hover::before {
    opacity: 1;
}

.card.animate-in {
    animation: cardZoomIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes cardZoomIn {
    0% {
        opacity: 0;
        transform: scale(0.3) translateY(30px);
    }
    60% {
        opacity: 1;
        transform: scale(1.05) translateY(-5px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6),
                0 0 40px rgba(192, 192, 192, 0.5),
                0 0 60px rgba(192, 192, 192, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.3);
    border-color: rgba(192, 192, 192, 0.7);
}

.card-header {
    background: linear-gradient(135deg, rgba(17, 24, 39, 0.8), rgba(31, 41, 55, 0.8));
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(192, 192, 192, 0.3);
    position: relative;
    overflow: hidden;
}

.card-header::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(138, 180, 248, 0.1), transparent);
    transition: left 0.5s ease;
}

.card:hover .card-header::after {
    left: 100%;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 900;
    color: #fff;
    margin: 0;
    text-shadow: 0 2px 10px rgba(138, 180, 248, 0.3);
}

.card-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: linear-gradient(45deg, #FFA33A, #F17100);
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 20px;
    letter-spacing: 0.02em;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
}

.card-body {
    padding: 1.25rem 1.5rem;
    background: linear-gradient(180deg, rgba(26, 32, 44, 0.3), rgba(45, 55, 72, 0.3));
}

.card-description {
    font-size: 1rem;
    color: rgba(226, 232, 240, 0.9);
    margin-bottom: 1.25rem;
    font-weight: 500;
}

.card-data-section {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid rgba(138, 180, 248, 0.2);
}

.card-data-item {
    flex: 1;
}

.card-data-original {
    font-size: 1rem;
    text-decoration: line-through;
    color: #fc8181;
    font-weight: 600;
    font-style: italic;
    margin-bottom: 0.25rem;
    text-shadow: 0 0 10px rgba(252, 129, 129, 0.3);
}

.card-data-value {
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg, #4fd1c5, #63b3ed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.25rem;
    filter: drop-shadow(0 0 20px rgba(79, 209, 197, 0.3));
}

.card-data-label {
    font-size: 1rem;
    color: rgba(203, 213, 224, 0.8);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-validity-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #e2e8f0;
    line-height: 1;
    margin-bottom: 0.25rem;
    text-shadow: 0 2px 10px rgba(226, 232, 240, 0.2);
}

.card-apps {
    margin-bottom: 1.25rem;
}

.card-apps-icons {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.card-app-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(17, 24, 39, 0.9), rgba(31, 41, 55, 0.9));
    border: 2px solid rgba(138, 180, 248, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.card-app-icon:hover {
    transform: scale(1.15) rotate(5deg);
    border-color: rgba(138, 180, 248, 0.6);
    box-shadow: 0 6px 20px rgba(138, 180, 248, 0.4);
}

.card-app-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.3));
}

.card-more-apps {
    font-size: 0.95rem;
    color: rgba(203, 213, 224, 0.8);
    font-weight: 600;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.card-price-section {
    flex-shrink: 0;
}

.card-currency {
    font-size: 1rem;
    color: rgba(203, 213, 224, 0.7);
    font-weight: 600;
    display: block;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.card-price {
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg, #fff, #cbd5e0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    filter: drop-shadow(0 2px 10px rgba(255, 255, 255, 0.2));
}

.card-button {
    flex: 1;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    font-weight: 700;
    color: #1a202c;
    background: linear-gradient(135deg, #fff, #e2e8f0);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.card-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(138, 180, 248, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.card-button:hover::before {
    width: 300px;
    height: 300px;
}

.card-button:hover {
    background: linear-gradient(135deg, #e2e8f0, #fff);
    transform: scale(1.05);
    box-shadow: 0 6px 25px rgba(255, 255, 255, 0.3);
}

.card-button:active {
    transform: scale(0.98);
}

/* Scrollbar Styling */

/* Responsive Design */
@media (max-width: 768px) {
    
    /* Disable heavy animations on mobile for better performance */
    .video-background.speed-up {
        animation: none !important;
    }
    
    /* Simplify card animations on mobile */
    .card {
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    
    .card:hover {
        transform: translateY(-5px) scale(1.01);
    }
    
    .site-header {
        height: 100px;
        padding: 0 1rem;
    }
    
    .header-logo img {
        height: 24px;
    }
    
    .back-button {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .back-button svg {
        width: 18px;
        height: 18px;
    }
    
    .cards-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .promo-content {
        padding: 2rem 2rem;
    }
    
    .card-body {
        padding: 1.5rem;
    }
    
    .card-header {
        padding: 1.25rem 1.5rem;
    }
    
    .card-title {
        font-size: 1.5rem;
    }
    
    .card-data-value {
        font-size: 2rem;
    }
    
    .card-validity-value {
        font-size: 1.5rem;
    }
    
    .card-price {
        font-size: 2rem;
    }
    
    .title {
        letter-spacing: 0.05em;
        margin-bottom: 2rem;
    }
    
    .cta-button {
        padding: 1rem 2rem;
        font-size: clamp(0.85rem, 3.5vw, 1.1rem);
    }
    
    .promo-title {
        margin-bottom: 2rem;
    }
    
    .card-title {
        font-size: 1.5rem;
    }
    
    .card-price {
        font-size: 2rem;
    }
}

/* Extra small devices */
@media (max-width: 480px) {
    .back-button {
        top: 0.75rem;
        left: 0.75rem;
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
    
    .back-button span {
        display: none;
    }
    
    .back-button svg {
        width: 20px;
        height: 20px;
    }
    
    .content {
        padding: 15px;
    }
    
    .title {
        letter-spacing: 0.03em;
    }
    
    .cta-button {
        padding: 0.85rem 1.8rem;
        width: 90%;
        max-width: 280px;
        font-size: 1.2rem;
    }
    
    .button-text-mobile {
        display: inline;
    }
    
    .button-text-full {
        display: none;
    }
    
    .card-body {
        padding: 1.25rem;
    }
    
    .card-header {
        padding: 1rem 1.25rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .card-badge {
        font-size: 1rem;
        padding: 0.4rem 0.8rem;
    }
    
    .card-data-section {
        flex-direction: column;
        gap: 1rem;
    }
    
    .card-footer {
        flex-direction: column;
        align-items: stretch;
    }
    
    .card-app-icon {
        width: 40px;
        height: 40px;
    }
}

/* Landscape mobile optimization */
@media (max-width: 896px) and (orientation: landscape) {
    .content {
        padding: 10px;
    }
    
    .title-container {
        gap: 0.5rem;
        margin-bottom: 1rem;
    }
    
    .title-line-1 {
        font-size: clamp(1.2rem, 4vw, 2rem);
    }
    
    .title-logo {
        width: clamp(220px, 50vw, 400px);
    }
    
    .cta-button {
        padding: 0.7rem 1.7rem;
    }
}