/* ==========================================
   ADVANCED LANDING PAGE - COMPLETE DESIGN
   ========================================== */

/* ==========================================
   NAVIGATION - ADVANCED DESIGN
   ========================================== */

.advanced-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 20px 0;
}

.advanced-nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    padding: 15px 0;
}

.advanced-nav .brand-logo {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    background: var(--gradient-professional);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    letter-spacing: -0.5px;
    transition: var(--transition-base);
}

.advanced-nav .brand-logo:hover {
    transform: scale(1.03);
    filter: brightness(1.1);
}

.advanced-nav .nav-links {
    display: flex;
    align-items: center;
    gap: 45px;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Navigation Dropdown Styles */
.nav-dropdown {
    position: relative;
}

.nav-dropdown .nav-link-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.dropdown-menu-advanced {
    position: absolute;
    top: calc(100% + 20px);
    left: 50%;
    transform: translateX(-50%);
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    padding: 15px;
    min-width: 280px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    border: 1px solid var(--gray-200);
}

.dropdown-menu-advanced::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid white;
}

.nav-dropdown:hover .dropdown-menu-advanced {
    opacity: 1;
    visibility: visible;
    top: calc(100% + 10px);
}

.dropdown-item-advanced {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    margin-bottom: 5px;
}

.dropdown-item-advanced:last-child {
    margin-bottom: 0;
}

.dropdown-item-advanced:hover {
    background: var(--gray-50);
    transform: translateX(5px);
}

.dropdown-item-advanced i {
    font-size: 1.5rem;
    margin-top: 3px;
}

.dropdown-title {
    font-weight: 700;
    color: var(--gray-900);
    font-size: 0.95rem;
    margin-bottom: 3px;
}

.dropdown-desc {
    font-size: 0.8rem;
    color: var(--gray-600);
    line-height: 1.4;
}

.advanced-nav .nav-link-item {
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    position: relative;
    padding: 8px 0;
    transition: var(--transition-base);
}

.advanced-nav .nav-link-item::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
    border-radius: 2px;
}

.advanced-nav .nav-link-item:hover,
.advanced-nav .nav-link-item.active {
    color: var(--primary-color);
}

.advanced-nav .nav-link-item:hover::before,
.advanced-nav .nav-link-item.active::before {
    width: 100%;
}

.nav-buttons {
    display: flex;
    gap: 15px;
    align-items: center;
}

.btn-advanced {
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 14px;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.btn-advanced::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn-advanced:hover::before {
    width: 300px;
    height: 300px;
}

.btn-advanced span {
    position: relative;
    z-index: 1;
}

.btn-primary-advanced {
    background: var(--gradient-professional);
    color: white;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.btn-primary-advanced:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
    color: white;
}

.btn-outline-advanced {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline-advanced:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 28px;
    color: var(--dark);
    cursor: pointer;
    padding: 0;
}

@media (max-width: 991px) {
    .advanced-nav .nav-links {
        position: fixed;
        top: 80px;
        right: -100%;
        width: 100%;
        max-width: 350px;
        height: calc(100vh - 80px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(30px);
        flex-direction: column;
        padding: 40px 30px;
        gap: 25px;
        align-items: flex-start;
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
        overflow-y: auto;
    }

    .advanced-nav .nav-links.active {
        right: 0;
    }

    .mobile-menu-btn {
        display: block;
    }

    /* Mobile Dropdown Styles */
    .nav-dropdown {
        width: 100%;
    }

    .dropdown-menu-advanced {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: 1px solid var(--gray-200);
        margin-top: 10px;
        margin-left: 20px;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease, padding 0.3s ease;
        padding: 0 15px;
    }

    .dropdown-menu-advanced::before {
        display: none;
    }

    .nav-dropdown:hover .dropdown-menu-advanced,
    .nav-dropdown.active .dropdown-menu-advanced {
        max-height: 500px;
        padding: 15px;
    }

    .dropdown-item-advanced {
        padding: 12px;
    }

    .nav-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn-advanced {
        width: 100%;
        justify-content: center;
    }
}

/* ==========================================
   HERO SECTION - ADVANCED
   ========================================== */

.hero-advanced {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);
    padding-top: 100px;
    padding-bottom: 80px;
}

#particles-hero-advanced {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}

.hero-advanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    animation: subtleShift 8s ease infinite;
    z-index: 2;
}

@keyframes subtleShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.hero-advanced .container {
    position: relative;
    z-index: 10;
}

.hero-advanced .hero-content-advanced {
    position: relative;
    z-index: 10;
}

.hero-advanced .hero-visual-advanced {
    position: relative;
    z-index: 10;
}

.hero-badge-advanced {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 24px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    color: white;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-advanced h1 {
    font-family: var(--font-display);
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 700;
    color: white;
    line-height: 1.1;
    margin-bottom: 30px;
    letter-spacing: -2px;
}

.hero-advanced h1 .highlight-text {
    background: linear-gradient(90deg, #fff, #f0f0f0, #fff);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s linear infinite;
}

@@keyframes shimmer {
    to { background-position: 200% center; }
}

.hero-advanced .subtitle-advanced {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 45px;
    line-height: 1.8;
    max-width: 650px;
    font-weight: 500;
}

.hero-buttons-advanced {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.btn-hero-advanced {
    padding: 20px 45px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 17px;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    position: relative;
    overflow: hidden;
}

.btn-hero-primary {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
}

.btn-hero-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    color: var(--primary-color);
}

.btn-hero-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-hero-secondary:hover {
    background: white;
    color: var(--primary-color);
}

.hero-stats-advanced {
    display: flex;
    gap: 60px;
    flex-wrap: wrap;
}

.stat-card-advanced {
    text-align: left;
}

.stat-number-advanced {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 800;
    color: white;
    line-height: 1;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.stat-label-advanced {
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
    font-weight: 600;
}

.hero-visual-advanced {
    position: relative;
    perspective: 1500px;
}

.screenshot-container {
    position: relative;
    transform-style: preserve-3d;
    animation: float 8s ease-in-out infinite;
}

@@keyframes float {
    0%, 100% {
        transform: translateY(0) rotateY(0deg);
    }
    25% {
        transform: translateY(-30px) rotateY(3deg);
    }
    50% {
        transform: translateY(-15px) rotateY(-3deg);
    }
    75% {
        transform: translateY(-30px) rotateY(3deg);
    }
}

.screenshot-main {
    width: 100%;
    border-radius: 24px;
    box-shadow: 
        0 50px 100px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.1);
    transition: var(--transition-smooth);
}

.screenshot-container:hover .screenshot-main {
    transform: scale(1.02) translateZ(20px);
}

/* ==========================================
   FEATURES SECTION - ADVANCED
   ========================================== */

.features-advanced-section {
    padding: 140px 0;
    background: linear-gradient(180deg, var(--white) 0%, var(--gray-100) 100%);
    position: relative;
}

.section-header-advanced {
    text-align: center;
    margin-bottom: 100px;
}

.section-badge-advanced {
    display: inline-block;
    padding: 8px 20px;
    background: var(--gradient-professional);
    color: white;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 25px;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow-sm);
}

.section-title-advanced {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 25px;
    letter-spacing: -2px;
    line-height: 1.2;
}

.section-description-advanced {
    font-size: 1.3rem;
    color: var(--gray-600);
    max-width: 750px;
    margin: 0 auto;
    line-height: 1.8;
}

.features-grid-advanced {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 35px;
}

.feature-card-advanced {
    background: white;
    border-radius: 28px;
    padding: 45px 35px;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.feature-card-advanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-color);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.feature-card-advanced:hover::before {
    transform: scaleX(1);
}

.feature-card-advanced:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(37, 99, 235, 0.1);
}

.feature-icon-advanced {
    width: 90px;
    height: 90px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
    position: relative;
    overflow: hidden;
}

.feature-icon-advanced::before {
    content: '';
    position: absolute;
    inset: 0;
    background: inherit;
    filter: blur(20px);
    opacity: 0.5;
}

.feature-icon-advanced i {
    font-size: 2.8rem;
    color: white;
    position: relative;
    z-index: 1;
}

.feature-card-advanced:nth-child(1) .feature-icon-advanced {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
}

.feature-card-advanced:nth-child(2) .feature-icon-advanced {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.feature-card-advanced:nth-child(3) .feature-icon-advanced {
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
}

.feature-card-advanced:nth-child(4) .feature-icon-advanced {
    background: linear-gradient(135deg, #475569 0%, #334155 100%);
}

.feature-card-advanced:nth-child(5) .feature-icon-advanced {
    background: linear-gradient(135deg, #2563eb 0%, #0d9488 100%);
}

.feature-card-advanced:nth-child(6) .feature-icon-advanced {
    background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
}

.feature-title-advanced {
    font-family: var(--font-display);
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 18px;
    line-height: 1.3;
}

.feature-description-advanced {
    color: var(--gray-600);
    line-height: 1.8;
    font-size: 1.05rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-advanced {
        padding-top: 120px;
        min-height: auto;
    }

    .hero-advanced h1 {
        font-size: 2.8rem;
    }

    .hero-buttons-advanced {
        flex-direction: column;
    }

    .btn-hero-advanced {
        width: 100%;
        justify-content: center;
    }

    .hero-stats-advanced {
        gap: 40px;
    }

    .features-grid-advanced {
        grid-template-columns: 1fr;
    }
}