/* Global Styles */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600&display=swap');

:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --bg-color: #0f172a;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(148, 163, 184, 0.1);
    --text-color: #e2e8f0;
    --text-muted: #94a3b8;
    --success-color: #10b981;
    --error-color: #ef4444;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(at 0% 0%, rgba(79, 70, 229, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.1) 0px, transparent 50%);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 500px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.6s ease-out;
}

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

header {
    text-align: center;
    margin-bottom: 30px;
}

h1 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #818cf8 0%, #34d399 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

p.subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.card {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    border-color: rgba(79, 70, 229, 0.3);
}

.step-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.step-title span {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    font-size: 0.7rem;
    font-weight: bold;
    color: var(--text-color);
}

/* Initial styling for file input to look like a button or area */
.file-upload-wrapper {
    position: relative;
    width: 100%;
    height: 100px;
    border: 2px dashed var(--glass-border);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
}

.file-upload-wrapper:hover {
    border-color: var(--primary-color);
    background: rgba(79, 70, 229, 0.05);
}

.file-upload-wrapper input[type="file"] {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.icon-upload {
    font-size: 24px;
    margin-bottom: 8px;
    color: var(--primary-color);
}

.file-name {
    font-size: 0.9rem;
    color: var(--text-muted);
    max-width: 90%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Buttons */
.btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 12px;
    font-family: inherit;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    margin-top: 15px;
    box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(79, 70, 229, 0.4);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Status Messages */
#status {
    margin-top: 20px;
    padding: 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    text-align: center;
    display: none;
}

#status.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

#status.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.hidden {
    display: none;
}