:root {
    --primary: #1E90FF;
    --primary-dark: #0066CC;
    --primary-light: #70B8FF;
    --primary-glow: 0 0 15px rgba(30, 144, 255, 0.5);
    --dark-bg: #0A0A0A;
    --card-bg: rgba(20, 25, 35, 0.8);
    --text: #FFFFFF;
    --text-secondary: #CCCCCC;
    --success: #00FFAA;
    --diamond: linear-gradient(135deg, #B9F2FF, #E2F9FF, #B9F2FF);
    --reseller-blue: #1E90FF;
    --reseller-purple: #9370DB;
    --reseller-red: #FF4757;
    --transition-time: 0.4s;
    --scrollbar-width: 10px;
    --scrollbar-track: rgba(20, 25, 35, 0.8);
    --scrollbar-thumb: var(--primary);
    --scrollbar-thumb-hover: var(--primary-light);
}

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

/* Custom Scrollbar for Body */
body::-webkit-scrollbar {
    width: var(--scrollbar-width);
}

body::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
    border-radius: 10px;
}

body::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 10px;
    box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
    transition: background var(--transition-time) ease;
}

body::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

body {
    background-color: var(--dark-bg);
    background-image:
        radial-gradient(circle at 20% 30%, rgba(30, 144, 255, 0.15) 0%, transparent 25%),
        radial-gradient(circle at 80% 70%, rgba(30, 144, 255, 0.15) 0%, transparent 25%);
    color: var(--text);
    font-family: 'Montserrat', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--transition-time) ease, color var(--transition-time) ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    margin-bottom: 40px;
    position: sticky;
    top: 0;
    background: rgba(10, 10, 10, 0.7);
    /* ημιδιαφανές */
    z-index: 1000;
    border-radius: 30px;
    /* κυκλικό bar */
    backdrop-filter: blur(8px);
    /* ελαφρύ blur για πιο ωραίο effect */
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
    margin-top: 20px;
    /* λίγο κενό από πάνω */
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    padding-left: 30px;
    /* Προσθέτει εσοχή αριστερά */
}

.logo-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-right: 15px;
    text-shadow: var(--primary-glow);
    transition: color var(--transition-time) ease;
    animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }

    100% {
        transform: scale(1);
    }
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-light);
    letter-spacing: 1px;
    transition: color var(--transition-time) ease;
}

.nav-links {
    display: flex;
    gap: 30px;
    padding-right: 30px;
    /* Προσθέτει εσοχή δεξιά */
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-time) ease, transform var(--transition-time) ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-light);
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-time) ease;
}

.nav-link:hover::after {
    width: 100%;
}

.hero {
    text-align: center;
    margin-bottom: 60px;
    padding: 60px 0;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeIn 1s ease-out forwards;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: var(--primary-light);
    line-height: 1.2;
    transition: color var(--transition-time) ease;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 30px;
    line-height: 1.6;
    transition: color var(--transition-time) ease;
}

.btn {
    display: inline-block;
    padding: 14px 35px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50px;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-time) ease;
    box-shadow: var(--primary-glow);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(30, 144, 255, 0.4);
    background: var(--primary-dark);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary-light);
    margin-left: 15px;
}

.btn-outline:hover {
    background: rgba(30, 144, 255, 0.1);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    position: relative;
    color: var(--primary-light);
    transition: color var(--transition-time) ease;
    animation: fadeIn 1s ease-in;
}

@keyframes fadeIn {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--primary);
    border-radius: 4px;
    transition: background var(--transition-time) ease;
}

.plans {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.plan-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    transition: all var(--transition-time) ease;
    border: 1px solid rgba(30, 144, 255, 0.1);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeIn 1s ease-out forwards 0.2s;
}

.plan-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
    border-color: rgba(30, 144, 255, 0.3);
}

.plan-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(90deg, transparent, rgba(30, 144, 255, 0.1), transparent);
    z-index: 1;
    animation: holographicGlow 3s infinite ease-in-out;
}

@keyframes holographicGlow {
    0% {
        box-shadow: 0 0 5px rgba(30, 144, 255, 0.3),
            0 0 10px rgba(30, 144, 255, 0.4),
            0 -5px 15px rgba(30, 144, 255, 0.5);
    }

    50% {
        box-shadow: 0 0 10px rgba(30, 144, 255, 0.5),
            0 0 20px rgba(30, 144, 255, 0.7),
            0 -10px 25px rgba(30, 144, 255, 0.9);
    }

    100% {
        box-shadow: 0 0 5px rgba(30, 144, 255, 0.3),
            0 0 10px rgba(30, 144, 255, 0.4),
            0 -5px 15px rgba(30, 144, 255, 0.5);
    }
}

.plan-card::after {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    width: 100%;
    height: 15px;
    background: radial-gradient(circle at 50% -20%, rgba(30, 144, 255, 0.2), transparent 70%);
    z-index: 2;
    animation: pulseGlow 2s infinite ease-in-out;
}

@keyframes pulseGlow {
    0% {
        opacity: 0.6;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0.6;
    }
}

.plan-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    position: relative;
    z-index: 3;
}

.plan-price {
    background: var(--primary);
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 1.3rem;
    color: white;
    font-weight: 700;
    transition: background var(--transition-time) ease;
}

.plan-price:hover {
    background: var(--primary-dark);
    box-shadow: 0 0 15px rgba(30, 144, 255, 0.7),
        0 0 25px rgba(30, 144, 255, 0.9),
        0 0 35px rgba(30, 144, 255, 1);
}

.plan-name {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary-light);
    transition: color var(--transition-time) ease;
}

.plan-badge {
    position: absolute;
    top: 15px;
    right: -25px;
    background: var(--reseller-red);
    color: white;
    padding: 5px 30px;
    font-size: 0.85rem;
    font-weight: 700;
    transform: rotate(45deg);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: background var(--transition-time) ease;
    z-index: 3;
}

.plan-features {
    margin: 25px 0;
    z-index: 3;
}

.plan-feature {
    margin: 15px 0;
    padding-left: 25px;
    position: relative;
    line-height: 1.6;
    color: var(--text-secondary);
    transition: color var(--transition-time) ease;
}

.plan-feature::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
    transition: color var(--transition-time) ease;
}

.plan-btn {
    width: 100%;
    text-align: center;
    padding: 12px;
    border-radius: 8px;
    z-index: 3;
}

.highlight {
    color: var(--primary-light);
    font-weight: bold;
    transition: color var(--transition-time) ease;
}

.resellers {
    margin: 80px 0;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeIn 1s ease-out forwards 0.4s;
}

.reseller-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 50px;
}

.reseller-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 25px;
    display: flex;
    align-items: center;
    transition: all var(--transition-time) ease;
    border: 1px solid rgba(30, 144, 255, 0.1);
}

.reseller-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    border-color: rgba(30, 144, 255, 0.3);
}

.reseller-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    font-size: 1.4rem;
    font-weight: bold;
    flex-shrink: 0;
    transition: background var(--transition-time) ease;
}

.reseller-1 {
    background: var(--reseller-blue);
    color: white;
}

.reseller-2 {
    background: var(--reseller-purple);
    color: white;
}

.reseller-3 {
    background: var(--reseller-red);
    color: white;
    box-shadow: 0 0 15px rgba(255, 71, 87, 0.3);
    transition: box-shadow var(--transition-time) ease;
}

.reseller-info {
    flex-grow: 1;
}

.reseller-name {
    font-weight: bold;
    margin-bottom: 5px;
    color: white;
    font-size: 1.2rem;
    transition: color var(--transition-time) ease;
}

.reseller-contact {
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: color var(--transition-time) ease;
}

.reseller-badge {
    padding: 5px 12px;
    border-radius: 5px;
    font-size: 0.8rem;
    background: rgba(0, 0, 0, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 5px;
    display: inline-block;
    transition: background var(--transition-time) ease;
}

.owner-badge {
    background: var(--reseller-red);
    color: white;
    font-weight: bold;
}

footer {
    text-align: center;
    padding: 40px 0;
    margin-top: 80px;
    border-top: 1px solid rgba(30, 144, 255, 0.2);
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: border-top var(--transition-time) ease, color var(--transition-time) ease;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 20px 0;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-time) ease;
}

.footer-link:hover {
    color: var(--primary-light);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 20px 0;
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    transition: all var(--transition-time) ease;
}

.social-link:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-time) ease, visibility var(--transition-time) ease;
    backdrop-filter: blur(8px);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--card-bg);
    border: 1px solid rgba(30, 144, 255, 0.3);
    box-shadow: var(--primary-glow), 0 0 40px rgba(0, 0, 0, 0.8);
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    padding: 30px;
    position: relative;
    transform: scale(0.9);
    opacity: 0;
    transition: transform var(--transition-time) ease, opacity var(--transition-time) ease;
    max-height: 80vh;
    overflow-y: auto;
}

/* Custom Scrollbar for Modals */
.modal::-webkit-scrollbar {
    width: var(--scrollbar-width);
}

.modal::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
    border-radius: 10px;
}

.modal::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 10px;
    box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
    transition: background var(--transition-time) ease;
}

.modal::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

.modal-overlay.active .modal {
    transform: scale(1);
    opacity: 1;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    color: var(--text-secondary);
    font-size: 1.6rem;
    cursor: pointer;
    transition: color var(--transition-time) ease, transform var(--transition-time) ease;
}

.modal-close:hover {
    color: var(--primary-light);
    transform: rotate(90deg);
}

.modal-title {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--primary-light);
    text-align: center;
    transition: color var(--transition-time) ease;
}

.modal-content {
    margin-bottom: 25px;
    line-height: 1.7;
    color: var(--text-secondary);
    transition: color var(--transition-time) ease;
}

.modal-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.modal-btn {
    padding: 12px 30px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-time) ease;
    border: none;
}

.modal-btn-primary {
    background: var(--primary);
    color: white;
}

.modal-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(30, 144, 255, 0.4);
    background: var(--primary-dark);
}

.modal-btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.modal-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

.purchase-steps {
    margin: 20px 0;
}

.purchase-step {
    margin: 15px 0;
    padding-left: 25px;
    position: relative;
    color: var(--text-secondary);
    transition: color var(--transition-time) ease;
}

.purchase-step::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
    transition: color var(--transition-time) ease;
}

.warning-box {
    background: rgba(255, 71, 87, 0.1);
    border-left: 4px solid var(--reseller-red);
    padding: 15px;
    border-radius: 0 8px 8px 0;
    margin: 25px 0;
    transition: background var(--transition-time) ease;
}

.warning-title {
    color: var(--reseller-red);
    font-weight: bold;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    transition: color var(--transition-time) ease;
}

.warning-title i {
    margin-right: 10px;
}

.changelog-item {
    background: var(--card-bg);
    padding: 25px;
    margin: 15px 0;
    border-radius: 10px;
    border: 1px solid rgba(30, 144, 255, 0.1);
    transition: background var(--transition-time) ease, border var(--transition-time) ease;
}

.changelog-date {
    color: var(--primary-light);
    font-weight: bold;
    margin-bottom: 10px;
    font-size: 1.1rem;
    transition: color var(--transition-time) ease;
}

.tos-content {
    line-height: 1.7;
}

.tos-content h3 {
    color: var(--primary-light);
    margin-bottom: 15px;
    font-size: 1.4rem;
    transition: color var(--transition-time) ease;
}

.tos-content ul {
    margin-left: 20px;
    color: var(--text-secondary);
    transition: color var(--transition-time) ease;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .btn {
        padding: 12px 25px;
        font-size: 0.95rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .plans {
        grid-template-columns: 1fr;
    }

    .nav-links {
        gap: 15px;
    }

    .nav-link {
        font-size: 0.9rem;
    }

    .modal-buttons {
        flex-direction: column;
    }

    .modal-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .nav-links {
        display: none;
    }

    .hero {
        padding: 40px 0;
    }

    .section-title {
        font-size: 1.8rem;
    }
}