:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --primary-color: #3b82f6;
    --accent-color: #8b5cf6;
    --text-color: #f8fafc;
    --text-muted: #94a3b8;
    --danger: #ef4444;
    --success: #10b981;
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    background: var(--bg-color);
    background-image:
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.2) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(139, 92, 246, 0.2) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.15) 0px, transparent 50%);
    background-size: 150% 150%;
    animation: bgAnimate 15s ease infinite;
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
}

@keyframes bgAnimate {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.container {
    width: 90%;
    max-width: 600px;
    text-align: center;
    padding: 2rem;
}

header {
    margin-bottom: 3rem;
    animation: fadeInDown 0.8s ease-out;
}

.logo {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo .highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tagline {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.platform-icons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1rem;
    font-size: 1.5rem;
    color: var(--text-muted);
}

.platform-icons i {
    transition: all 0.3s;
    cursor: pointer;
}

.platform-icons i:hover {
    color: var(--text-color);
    transform: translateY(-3px);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease;
    width: 100%;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.6);
}

.input-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

input[type="text"] {
    width: 100%;
    background: rgba(15, 23, 42, 0.8);
    border: 2px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.2rem 3.5rem 1.2rem 1.5rem;
    /* Space for paste button */
    color: white;
    font-size: 1.1rem;
    outline: none;
    transition: all 0.3s;
}

.paste-btn {
    position: absolute;
    right: 12px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.2s;
    padding: 5px;
}

.paste-btn:hover {
    color: var(--primary-color);
    transform: scale(1.1);
}

input[type="text"]:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
    background: rgba(15, 23, 42, 1);
}

button#downloadBtn {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border: none;
    border-radius: 12px;
    padding: 1.2rem;
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

button#downloadBtn:hover {
    filter: brightness(1.1);
    transform: scale(1.02);
}

button#downloadBtn:active {
    transform: scale(0.98);
}

.error-msg {
    color: var(--danger);
    margin-top: 1rem;
    font-size: 0.9rem;
    min-height: 1.2rem;
}

/* Loading State */
.loading-state {
    margin-top: 2rem;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-left-color: var(--primary-color);
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    color: var(--text-muted);
    font-style: italic;
    animation: pulse 1.5s infinite;
}

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

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0.6;
    }
}

/* Result State */
.result-state {
    margin-top: 2rem;
    animation: fadeIn Up 0.5s ease-out;
}

.success-icon {
    width: 60px;
    height: 60px;
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.expiry-warning {
    color: var(--danger);
    font-weight: 500;
    margin-bottom: 2rem;
    background: rgba(239, 68, 68, 0.1);
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 99px;
}

.download-action-btn {
    display: inline-block;
    background: var(--success);
    color: white;
    text-decoration: none;
    padding: 1rem 3rem;
    border-radius: 12px;
    font-weight: 700;
    box-shadow: 0 10px 25px -5px rgba(16, 185, 129, 0.4);
    transition: all 0.3s;
}

.download-action-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px -5px rgba(16, 185, 129, 0.5);
}

.reset-btn {
    display: block;
    margin: 1.5rem auto 0;
    background: transparent;
    border: none;
    color: var(--text-muted);
    text-decoration: underline;
    cursor: pointer;
}

.reset-btn:hover {
    color: white;
}

footer {
    margin-top: 4rem;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.3);
}

/* Utilities */
.hidden {
    display: none;
}

@media (max-width: 600px) {
    .input-group {
        flex-direction: column;
    }

    button#downloadBtn {
        width: 100%;
        padding: 1rem;
        justify-content: center;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shake {
    0% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-5px);
    }

    50% {
        transform: translateX(5px);
    }

    75% {
        transform: translateX(-5px);
    }

    100% {
        transform: translateX(0);
    }
}