:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #10b981;
    --dark: #1f2937;
    --light: #f9fafb;
    --gray: #9ca3af;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --card-shadow: 0 4px 12px -2px rgba(0, 0, 0, 0.08);
    --card-shadow-hover: 0 8px 24px -4px rgba(0, 0, 0, 0.12);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 16px;
    --border-radius-sm: 10px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

/* Optimized body with simpler background */
body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    position: relative;
}

/* Simplified background overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
}

.container {
    max-width: 1400px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-top: 20px;
}

@media (min-width: 992px) {
    .container {
        grid-template-columns: 1fr;
    }
}

/* Optimized feedback box with reduced backdrop blur */
.feedback-box {
    width: 50%;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    margin: auto;
    transform: translate3d(0, 0, 0); /* Hardware acceleration */
    will-change: transform;
}

/* Simplified hover effect */
.feedback-box::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 0.3s ease;
}

.feedback-box:hover {
    transform: translate3d(0, -4px, 0);
    box-shadow: var(--card-shadow-hover);
}

.feedback-box:hover::before {
    left: 100%;
}

.form-header {
    text-align: center;
    margin-bottom: 40px;
}

/* Optimized header icon with hardware acceleration */
.header-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 6px 16px -4px rgba(79, 70, 229, 0.3);
    animation: optimizedFloat 4s ease-in-out infinite;
    transform: translate3d(0, 0, 0);
    will-change: transform;
}

/* Hardware accelerated float animation */
@keyframes optimizedFloat {
    0%, 100% { 
        transform: translate3d(0, 0, 0); 
    }
    50% { 
        transform: translate3d(0, -8px, 0); 
    }
}

.header-icon i {
    font-size: 32px;
    color: white;
}

.form-header h2 {
    font-size: 28px;
    color: var(--dark);
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--gray);
    font-size: 16px;
    line-height: 1.6;
}

.input-group {
    margin-bottom: 28px;
    position: relative;
}

.input-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--dark);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Optimized inputs without backdrop blur */
.input-group input,
.input-group textarea {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #e5e7eb;
    border-radius: var(--border-radius-sm);
    font-size: 16px;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.95);
    transform: translate3d(0, 0, 0);
}

.input-group input:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
    background: white;
}

/* Optimized rating section */
.rating-section {
    margin-bottom: 32px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.rating-section label {
    display: block;
    margin-bottom: 16px;
    font-weight: 600;
    color: var(--dark);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stars {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
    justify-content: center;
}

/* Optimized star animations */
.stars i {
    font-size: 36px;
    color: #b7bbc0;
    cursor: pointer;
    transition: all 0.15s ease;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.08));
    transform: translate3d(0, 0, 0);
    will-change: transform;
}

.stars i.active {
    color: #ffd700;
    text-shadow: 0 0 6px rgba(255, 215, 0, 0.4);
}

.stars i:hover {
    transform: translate3d(0, 0, 0) scale(1.2);
    color: #ffd700;
}

.rating-text {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
}

.rating-label {
    font-size: 14px;
    color: var(--gray);
}

.rating-value {
    font-weight: 700;
    color: var(--primary);
    font-size: 16px;
}

/* Optimized submit button */
.submit-btn {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    padding: 18px 32px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    transition: var(--transition);
    box-shadow: 0 6px 16px -4px rgba(79, 70, 229, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    transform: translate3d(0, 0, 0);
    will-change: transform;
}

.submit-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 0.3s ease;
}

.submit-btn:hover {
    transform: translate3d(0, -2px, 0);
    box-shadow: 0 10px 24px -4px rgba(79, 70, 229, 0.4);
}

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

.submit-btn:active {
    transform: translate3d(0, 0, 0);
}

/* Optimized feedback list */
.feedback-list {
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--card-shadow);
    transform: translate3d(0, 0, 0);
}

.list-header {
    margin-bottom: 40px;
    position: relative;
    text-align: center;
}

.list-header h2 {
    font-size: 28px;
    color: var(--dark);
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    /* -webkit-text-fill-color: transparent; */
    background-clip: text;
}

.list-header p {
    color: var(--gray);
    font-size: 16px;
    margin-bottom: 24px;
    line-height: 1.6;
}


.feedback-counter {
    display: inline-flex;
    align-items: center;
    gap: 20px;
}

/* Simplified counter badge */
.counter-badge {
    background: linear-gradient(135deg, var(--secondary) 0%, #0ca678 100%);
    color: white;
    padding: 12px 20px;
    border-radius: 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px -2px rgba(16, 185, 129, 0.3);
    transform: translate3d(0, 0, 0);
}

.counter-number {
    font-size: 24px;
    font-weight: 800;
}

.counter-text {
    font-size: 11px;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.feedback-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 32px;
}

@media (min-width: 768px) {
    .feedback-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1200px) {
    .feedback-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Optimized feedback cards */
.feedback-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    padding: 24px;
    transition: var(--transition);
    border-left: 4px solid var(--primary);
    border: 1px solid rgba(125, 118, 118, 0.4);
    position: relative;
    overflow: hidden;
    transform: translate3d(0, 0, 0);
    will-change: transform;
}

.feedback-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.feedback-card:hover {
    transform: translate3d(0, -3px, 0) scale(1.01);
    box-shadow: var(--card-shadow-hover);
    border-color: rgba(255, 255, 255, 0.6);
}

.feedback-card.new-feedback {
    animation: optimizedSlideIn 0.4s ease-out;
    border-left-color: var(--success);
}

.feedback-card.new-feedback::before {
    background: linear-gradient(90deg, var(--success), var(--secondary));
}

/* Hardware accelerated slide animation */
@keyframes optimizedSlideIn {
    from {
        opacity: 0;
        transform: translate3d(0, -30px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.card-header h4 {
    font-size: 18px;
    color: var(--dark);
    margin-right: 12px;
    font-weight: 600;
}

.feedback-card .stars {
    margin-bottom: 0;
    flex-shrink: 0;
    gap: 4px;
}

.feedback-card .stars i {
    font-size: 16px;
}

.feedback-card p {
    color: var(--dark);
    margin-bottom: 16px;
    line-height: 1.6;
    font-size: 15px;
}

.feedback-card small {
    color: var(--gray);
    font-size: 12px;
    font-weight: 500;
}

.view-more-section {
    text-align: center;
}

.view-more-btn {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: 50px;
    padding: 14px 28px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
    transform: translate3d(0, 0, 0);
    will-change: transform;
}

.view-more-btn:hover {
    background: var(--primary);
    color: white;
    transform: translate3d(0, -2px, 0);
    box-shadow: 0 6px 16px -4px rgba(79, 70, 229, 0.3);
}

/* Optimized visibility toggle */
.additional-feedback {
    display: none;
}

.hidden {
    display: none !important;
}

/* Optimized toast */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    padding: 18px 28px;
    border-radius: 12px;
    background: var(--dark);
    color: white;
    box-shadow: 0 8px 24px -4px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translate3d(0, 100px, 0);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    font-weight: 600;
    will-change: transform, opacity;
}

.toast.show {
    transform: translate3d(0, 0, 0);
    opacity: 1;
}

.toast.error {
    background: linear-gradient(135deg, var(--danger), #dc2626);
}

.toast.success {
    background: linear-gradient(135deg, var(--success), #16a34a);
}

/* Simplified pulse animation */
.pulse {
    animation: optimizedPulse 1.5s ease-in-out;
}

@keyframes optimizedPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.loading {
    opacity: 0.7;
    pointer-events: none;
}

.submit-btn.loading {
    background: var(--gray);
}

.submit-btn.loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: optimizedSpin 0.8s linear infinite;
}

@keyframes optimizedSpin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    body {
        padding: 20px 10px;
    }

    .container {
        gap: 30px;
        margin-top: 10px;
    }

    .feedback-box {
        width: 100%;
        padding: 30px 20px;
    }

    .feedback-list {
        padding: 30px 20px;
    }

    .form-header h2,
    .list-header h2 {
        font-size: 24px;
    }

    .stars i {
        font-size: 28px;
        gap: 8px;
    }

    .feedback-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .header-icon {
        width: 60px;
        height: 60px;
    }

    .header-icon i {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .feedback-box,
    .feedback-list {
        padding: 20px 15px;
    }

    .stars i {
        font-size: 24px;
    }

    .toast {
        bottom: 20px;
        right: 20px;
        left: 20px;
        padding: 16px 20px;
    }
}