/* ============================================
   RESET & BASE STYLES
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: #0a0a0a;
    color: #e0e0e0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   NOTIFICATION TOAST
   ============================================ */
.notification-toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-120px);
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 14px;
    background: linear-gradient(135deg, rgba(40, 40, 35, 0.95), rgba(55, 50, 40, 0.95));
    border: 1px solid rgba(255, 180, 50, 0.2);
    border-radius: 14px;
    padding: 14px 22px;
    min-width: 380px;
    max-width: 480px;
    backdrop-filter: blur(20px);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 180, 50, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    opacity: 0;
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.4s ease;
}

.notification-toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.notification-toast.hide {
    transform: translateX(-50%) translateY(-120px);
    opacity: 0;
}

.notification-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    background-color: #22a75d;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(34, 167, 93, 0.3);
}

.notification-text {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.notification-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
}

.notification-user {
    font-size: 14.5px;
    font-weight: 600;
    color: #ffffff;
    line-height: 1.3;
}

/* ============================================
   CONTAINER
   ============================================ */
.container {
    width: 100%;
    max-width: 660px;
    padding: 60px 20px 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    text-align: center;
    margin-bottom: 32px;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: 18px;
}

.title-orange {
    font-size: 42px;
    font-weight: 900;
    letter-spacing: 2px;
    background: linear-gradient(180deg, #f0a830, #d4872a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    line-height: 1.1;
}

.title-white {
    font-size: 32px;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: 4px;
    text-transform: uppercase;
    line-height: 1.2;
}

.hero-description {
    font-size: 15px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.7);
    max-width: 560px;
    margin: 0 auto;
}

/* ============================================
   BOOK CARD
   ============================================ */
.book-card {
    width: 100%;
    background: linear-gradient(160deg, #3a3520 0%, #2e2a18 40%, #252010 100%);
    border-radius: 20px;
    padding: 36px 32px 28px;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 180, 50, 0.1);
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.book-image-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 32px;
}

.book-image {
    width: 220px;
    height: auto;
    border-radius: 4px;
    box-shadow: 
        0 16px 48px rgba(0, 0, 0, 0.5),
        0 4px 16px rgba(0, 0, 0, 0.3),
        -4px 0 0 #1a7a6d;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.book-image:hover {
    transform: scale(1.03) translateY(-4px);
}

/* Features List */
.features-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 24px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 14px;
}

.feature-check {
    width: 28px;
    height: 28px;
    min-width: 28px;
    background-color: #e8820c;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(232, 130, 12, 0.3);
}

.feature-text {
    font-size: 14.5px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.4;
}

.feature-text strong {
    color: #ffffff;
    font-weight: 700;
}

/* Divider */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    margin-bottom: 20px;
}

/* Price Row */
.price-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.file-status,
.retail-price {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.status-label,
.price-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: rgba(255, 255, 255, 0.45);
    text-transform: uppercase;
}

.status-value {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: #22c55e;
}

.green-dot {
    width: 8px;
    height: 8px;
    background-color: #22c55e;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 8px rgba(34, 197, 94, 0.5); }
    50% { opacity: 0.6; box-shadow: 0 0 16px rgba(34, 197, 94, 0.8); }
}

.retail-price {
    text-align: right;
}

.price-values {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.price-old {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.4);
    text-decoration: line-through;
    font-weight: 500;
}

.price-free {
    font-size: 26px;
    font-weight: 900;
    color: #22c55e;
    letter-spacing: 1px;
    text-shadow: 0 0 20px rgba(34, 197, 94, 0.3);
}

/* ============================================
   PROGRESS SECTION
   ============================================ */
.progress-section {
    width: 100%;
    background: linear-gradient(160deg, rgba(30, 30, 25, 0.9), rgba(22, 22, 18, 0.95));
    border: 1px solid rgba(255, 180, 50, 0.08);
    border-radius: 16px;
    padding: 22px 26px;
    margin-bottom: 36px;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.progress-left {
    font-size: 13px;
    font-weight: 700;
    color: #f0a830;
    letter-spacing: 0.5px;
}

.progress-right {
    font-size: 13px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.5px;
}

.progress-bar-track {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar-fill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, #e8820c, #f0a830, #f5c040);
    border-radius: 10px;
    transition: width 1.8s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 0 0 12px rgba(240, 168, 48, 0.4);
    position: relative;
}

.progress-bar-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.2) 50%, transparent 100%);
    animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ============================================
   STEPS SECTION
   ============================================ */
.steps-section {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 32px;
    padding: 0 4px;
}

.step-item {
    display: flex;
    align-items: center;
    gap: 18px;
}

.step-number {
    width: 36px;
    height: 36px;
    min-width: 36px;
    background: linear-gradient(135deg, #e8820c, #d4720a);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 800;
    box-shadow: 0 4px 14px rgba(232, 130, 12, 0.3);
}

.step-text {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
}

.step-text strong {
    color: #ffffff;
    font-weight: 700;
}

/* ============================================
   CTA BUTTON
   ============================================ */
.cta-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    padding: 20px 32px;
    background: linear-gradient(135deg, #f5b731, #e8960c, #d4820a);
    color: #1a1400;
    font-family: 'Inter', sans-serif;
    font-size: 17px;
    font-weight: 800;
    letter-spacing: 1px;
    border: none;
    border-radius: 16px;
    cursor: pointer;
    text-decoration: none;
    text-transform: uppercase;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 
        0 8px 32px rgba(232, 150, 12, 0.35),
        0 2px 8px rgba(232, 150, 12, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transition: left 0.6s ease;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-2px) scale(1.01);
    box-shadow: 
        0 12px 40px rgba(232, 150, 12, 0.45),
        0 4px 16px rgba(232, 150, 12, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.cta-button:active {
    transform: translateY(0) scale(0.99);
}

.cta-icon {
    width: 22px;
    height: 22px;
}

/* Pulse animation on button */
@keyframes button-pulse {
    0%, 100% { box-shadow: 0 8px 32px rgba(232, 150, 12, 0.35), 0 2px 8px rgba(232, 150, 12, 0.2); }
    50% { box-shadow: 0 8px 48px rgba(232, 150, 12, 0.5), 0 2px 16px rgba(232, 150, 12, 0.35); }
}

.cta-button {
    animation: button-pulse 3s ease-in-out infinite;
}

/* ============================================
   DISCLAIMER
   ============================================ */
.disclaimer {
    margin-top: 20px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.35);
    text-align: center;
    line-height: 1.6;
    max-width: 520px;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 600px) {
    .container {
        padding: 50px 16px 40px;
    }

    .title-orange {
        font-size: 30px;
    }

    .title-white {
        font-size: 22px;
        letter-spacing: 3px;
    }

    .hero-description {
        font-size: 14px;
    }

    .book-card {
        padding: 28px 20px 24px;
        border-radius: 16px;
    }

    .book-image {
        width: 180px;
    }

    .notification-toast {
        min-width: 320px;
        max-width: calc(100vw - 32px);
        padding: 12px 16px;
    }

    .notification-user {
        font-size: 13px;
    }

    .cta-button {
        font-size: 14px;
        padding: 18px 24px;
        letter-spacing: 0.5px;
    }

    .progress-left {
        font-size: 11px;
    }

    .progress-right {
        font-size: 11px;
    }

    .step-text {
        font-size: 14px;
    }

    .price-free {
        font-size: 22px;
    }
}

@media (max-width: 380px) {
    .title-orange {
        font-size: 26px;
    }

    .title-white {
        font-size: 18px;
    }

    .price-row {
        flex-direction: column;
        gap: 12px;
    }

    .retail-price {
        text-align: left;
    }
}