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

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

body {
    font-family: 'Space Grotesk', sans-serif;
    background: #000;
    color: #fff;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated Background */
.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.6;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(45deg, #6366f1, #8b5cf6);
    top: -250px;
    left: -250px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(45deg, #ec4899, #f43f5e);
    bottom: -200px;
    right: -200px;
    animation-delay: -10s;
}

.orb-3 {
    width: 600px;
    height: 600px;
    background: linear-gradient(45deg, #3b82f6, #06b6d4);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -5s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(50px, -100px) scale(1.1);
    }
    66% {
        transform: translate(-50px, 50px) scale(0.9);
    }
}

/* Header */
.header {
    position: relative;
    z-index: 10;
    padding: 2rem 3rem;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fff, #a0a0a0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Container */
.container {
    position: relative;
    z-index: 10;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem 4rem;
}

/* Hero */
.hero {
    text-align: center;
    padding: 4rem 0 3rem;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #fff 0%, #888 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeIn 1s ease;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #888;
    animation: fadeIn 1s ease 0.2s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    animation: fadeIn 1s ease 0.4s both;
}

/* Card */
.card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    transition: transform 0.3s ease;
    animation: cardPop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.card:nth-child(1) { animation-delay: 0.1s; }
.card:nth-child(2) { animation-delay: 0.2s; }
.card:nth-child(3) { animation-delay: 0.3s; }
.card:nth-child(4) { animation-delay: 0.4s; }
.card:nth-child(5) { animation-delay: 0.5s; }
.card:nth-child(6) { animation-delay: 0.6s; }
.card:nth-child(7) { animation-delay: 0.7s; }
.card:nth-child(8) { animation-delay: 0.8s; }

@keyframes cardPop {
    0% {
        opacity: 0;
        transform: scale(0.8) translateY(30px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.card:hover {
    transform: translateY(-10px);
}

.card-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.1), transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card:hover .card-glow {
    opacity: 1;
}

.card-inner {
    position: relative;
    background: rgba(20, 20, 20, 0.7);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.card:hover .card-inner {
    background: rgba(30, 30, 30, 0.8);
    border-color: rgba(255, 255, 255, 0.2);
}

.tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: #fff;
    margin-bottom: 1.5rem;
    width: fit-content;
}

.tag.stock {
    background: linear-gradient(135deg, #3b82f6, #06b6d4);
}

.tag.consumer-choice {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    margin-right: 0.35rem;
    margin-bottom: 0.5rem;
    font-size: 0.65rem;
    padding: 0.3rem 0.75rem;
}

.card h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.card p {
    color: #888;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 1rem;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    color: #fff;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1));
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.btn svg {
    transition: transform 0.3s ease;
}

.btn:hover svg {
    transform: translateY(3px);
}

.btn:active {
    transform: translateY(0);
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background: rgba(18, 18, 22, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: 3rem;
    max-width: 580px;
    width: 90%;
    backdrop-filter: blur(40px) saturate(180%);
    -webkit-backdrop-filter: blur(40px) saturate(180%);
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    animation: modalSlideIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(50px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-content h2 {
    font-size: 1.875rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    background: linear-gradient(135deg, #fff 0%, #d4d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-content p {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 2rem;
    line-height: 1.5;
    font-size: 0.9375rem;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.modal-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.modal-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 0;
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 200px;
}

.modal-btn-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.modal-btn[data-category="stock"] .modal-btn-gradient {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
}

.modal-btn[data-category="custom"] .modal-btn-gradient {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.2) 0%, rgba(239, 68, 68, 0.2) 100%);
}

.modal-btn-content {
    position: relative;
    padding: 2.5rem 1.5rem;
    z-index: 1;
}

.modal-btn:hover .modal-btn-gradient {
    opacity: 1;
}

.modal-btn:hover {
    transform: translateY(-6px) scale(1.03);
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.modal-btn:active {
    transform: translateY(-3px) scale(1.01);
}

.modal-btn-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-btn-icon svg {
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.4s ease;
}

.modal-btn:hover .modal-btn-icon {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.1) translateY(-4px);
    box-shadow: 0 8px 24px rgba(139, 92, 246, 0.3);
}

.modal-btn[data-category="stock"]:hover .modal-btn-icon {
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.4);
}

.modal-btn[data-category="custom"]:hover .modal-btn-icon {
    box-shadow: 0 8px 24px rgba(236, 72, 153, 0.4);
}

.modal-btn:hover .modal-btn-icon svg {
    color: #fff;
    transform: scale(1.1);
}

.modal-btn h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: #fff;
}

.modal-btn p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    margin: 0;
    position: relative;
    z-index: 1;
}

.modal-btn-all {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    padding: 1rem 1.5rem;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    font-weight: 600;
    font-size: 0.9375rem;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.modal-btn-all::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.modal-btn-all:hover::before {
    left: 100%;
}

.modal-btn-all svg {
    opacity: 0.7;
    transition: all 0.3s ease;
}

.modal-btn-all:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.1);
}

.modal-btn-all:hover svg {
    opacity: 1;
    transform: scale(1.1);
}

.modal-btn-all:active {
    transform: translateY(0);
}

.change-filter-btn {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    padding: 0.65rem 1.25rem;
    color: #fff;
    cursor: pointer;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 100;
    display: none;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.875rem;
    letter-spacing: -0.01em;
    gap: 0.5rem;
    align-items: center;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.change-filter-btn svg {
    opacity: 0.8;
    transition: all 0.3s ease;
}

.change-filter-btn.show {
    display: flex;
    animation: slideInRight 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.change-filter-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(139, 92, 246, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.change-filter-btn:hover svg {
    opacity: 1;
    transform: scale(1.1);
}

.change-filter-btn:active {
    transform: translateY(0) scale(0.98);
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        padding: 1.5rem 2rem;
    }

    .logo {
        font-size: 1.5rem;
    }

    .container {
        padding: 0 2rem 3rem;
    }

    .hero {
        padding: 2rem 0;
    }

    .grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .modal-content {
        padding: 2rem;
    }

    .modal-buttons {
        grid-template-columns: 1fr;
    }

    .change-filter-btn {
        top: 1rem;
        right: 1rem;
        padding: 0.5rem 0.875rem;
        font-size: 0.8125rem;
    }

    .modal-content {
        padding: 2rem;
    }

    .modal-content h2 {
        font-size: 1.5rem;
    }
}