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

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #667eea 100%);
    min-height: 100vh;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    position: relative;
    overflow-x: hidden;
}

/* Background blur elements for depth */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 60%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
    pointer-events: none;
    z-index: -1;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(-20px, -20px) rotate(1deg); }
    66% { transform: translate(20px, -10px) rotate(-1deg); }
}

.container {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(40px) saturate(180%);
    -webkit-backdrop-filter: blur(40px) saturate(180%);
    border-radius: 28px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow:
            0 32px 64px rgba(0, 0, 0, 0.15),
            inset 0 1px 0 rgba(255, 255, 255, 0.2);
    padding: 48px;
    width: 90%;
    max-width: 1000px;
    margin-top: 40px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    border-radius: 28px 28px 0 0;
}

h1 {
    text-align: center;
    color: #ffffff;
    font-size: 2.75rem;
    font-weight: 600;
    margin-bottom: 48px;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.8) 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

.main-layout {
    display: grid;
    gap: 2rem;
}

@media (min-width: 768px) {
    .main-layout {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
}

.input-section {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow:
            0 16px 32px rgba(0, 0, 0, 0.1),
            inset 0 1px 0 rgba(255, 255, 255, 0.15);
    transition: all 0.3s ease;
}

.input-section:hover {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow:
            0 20px 40px rgba(0, 0, 0, 0.12),
            inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.input-group {
    margin-bottom: 24px;
}

label {
    display: block;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 1rem;
    letter-spacing: -0.01em;
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 16px 20px;
    border: none;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: #ffffff;
    font-size: 1rem;
    font-weight: 400;
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    outline: none;
}

input[type="text"]:focus,
input[type="number"]:focus {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(0, 122, 255, 0.6);
    box-shadow:
            0 0 0 4px rgba(0, 122, 255, 0.1),
            0 8px 16px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

input::placeholder {
    color: rgba(255, 255, 255, 0.5);
    font-weight: 400;
}

.time-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.btn {
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.8) 0%, rgba(88, 86, 214, 0.8) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 16px 32px;
    border-radius: 12px;
    color: #ffffff;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 8px 16px rgba(0, 122, 255, 0.2);
    letter-spacing: -0.01em;
    margin-top: 8px;
    width: 100%;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(0, 122, 255, 0.3);
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.9) 0%, rgba(88, 86, 214, 0.9) 100%);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 4px 8px rgba(0, 122, 255, 0.2);
}

.total-section {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border-radius: 20px;
    padding: 32px;
    margin-bottom: 24px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow:
            0 16px 32px rgba(0, 0, 0, 0.1),
            inset 0 1px 0 rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.total-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
}

.total-time {
    font-size: 3rem;
    font-weight: 300;
    background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.7) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
}

.total-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.times-list {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(30px) saturate(150%);
    -webkit-backdrop-filter: blur(30px) saturate(150%);
    border-radius: 20px;
    padding: 32px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    max-height: 400px;
    overflow-y: auto;
    box-shadow:
            0 16px 32px rgba(0, 0, 0, 0.08),
            inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.times-list h3 {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 24px;
    text-align: center;
    letter-spacing: -0.01em;
}

.time-entry {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 12px;
    margin-bottom: 8px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.time-entry:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.time-entry-title {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
    font-size: 1rem;
    flex-grow: 1;
    letter-spacing: -0.01em;
}

.time-entry-time {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    font-size: 1rem;
    margin-left: 16px;
    font-variant-numeric: tabular-nums;
    background: rgba(255, 255, 255, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.delete-btn {
    background: #FB4141;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 69, 58, 0.3);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    margin-left: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.delete-btn:hover {
    border-color: rgba(255, 69, 58, 0.5);
    transform: scale(1.05);
}

.clear-btn {
    background: #FB4141;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 69, 58, 0.3);
    padding: 12px 24px;
    border-radius: 12px;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    margin-top: 16px;
    width: 100%;
    letter-spacing: -0.01em;
}

.clear-btn:hover {
    border-color: rgba(255, 69, 58, 0.5);
    transform: translateY(-1px);
    box-shadow: 0 8px 16px rgba(255, 69, 58, 0.2);
}

.empty-state {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-style: italic;
    padding: 48px 24px;
    font-size: 1rem;
    font-weight: 400;
}

/* Custom scrollbar with Apple style */
.times-list::-webkit-scrollbar {
    width: 6px;
}

.times-list::-webkit-scrollbar-track {
    background: transparent;
}

.times-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
}

.times-list::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .container {
        padding: 32px 24px;
        margin-top: 20px;
        width: 95%;
    }

    h1 {
        font-size: 2.25rem;
        margin-bottom: 32px;
    }

    .main-layout {
        gap: 1.5rem;
    }

    .input-section {
        padding: 24px;
    }

    .total-section {
        padding: 24px;
        margin-bottom: 20px;
    }

    .times-list {
        padding: 24px;
    }

    .total-time {
        font-size: 2.5rem;
    }
}

@media (max-width: 576px) {
    .time-inputs {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .time-entry {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding: 16px;
    }

    .time-entry-time {
        margin-left: 0;
        align-self: flex-end;
    }

    .delete-btn {
        position: absolute;
        top: 12px;
        right: 12px;
        margin: 0;
    }

    .time-entry {
        position: relative;
        padding-right: 50px;
    }
}