/* ELMS Global Unified Styles — Academic Playground Design */

:root {
    /* Brand Colors (from design.md) */
    --brand-primary: #4255ff;    /* Quizlet Violet */
    --brand-hover: #423ed8;      /* Night Violet */
    --brand-soft: #f0f2ff;       /* Soft Violet Background */
    --brand-accent-sky: #98e3ff; /* Sky Study */
    --brand-accent-pink: #eeaaff; /* Flashcard Pink */
    --brand-accent-orange: #ffc38c; /* Practice Orange */
    
    /* Text Colors */
    --navy-900: #282e3e;         /* Stormcloud Ink */
    --slate-500: #586380;        /* Slate Text */
    --slate-400: #939bb4;        /* Light Slate */
    --slate-200: #d9dde8;        /* Ash Border */
    
    /* Backgrounds */
    --page-bg: #f6f7fb;          /* Page Background */
    --card-bg: #ffffff;          /* Pure White */

    /* Shapes */
    --radius-cards: 8px;
    --radius-inputs: 4px;
    --radius-buttons: 200px;
    --radius-general: 4px;

    /* Shadows */
    --shadow-md: rgba(40, 46, 62, 0.1) 0px 4px 16px 0px;
    --shadow-sm: rgba(40, 46, 62, 0.1) 0px 2px 4px 0px;
    --shadow-subtle: rgba(0, 0, 0, 0.3) 0px 0px 1px 0px inset;
}

body {
    background-color: var(--page-bg);
    color: var(--navy-900);
    font-family: 'Be Vietnam Pro', sans-serif;
}

/* Inputs & Form Elements */
.elms-input,
.elms-select,
.elms-textarea {
    width: 100%;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-inputs);
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    color: var(--navy-900);
    transition: all 0.2s;
    background-color: #ffffff;
    outline: none;
}

.elms-input:focus,
.elms-select:focus,
.elms-textarea:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(66, 85, 255, 0.1);
}

.elms-input::placeholder {
    color: var(--slate-400);
}

/* File Input - Modern Redesign */
.elms-file-wrapper {
    position: relative;
    width: 100%;
}

.elms-file-input-custom {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 120px;
    padding: 1.5rem;
    background-color: var(--card-bg);
    border: 2px dashed var(--slate-200);
    border-radius: var(--radius-cards);
    cursor: pointer;
    transition: all 0.2s ease-in-out;
}

.elms-file-input-custom:hover {
    border-color: var(--brand-primary);
    background-color: var(--brand-soft);
}

.elms-file-input-actual {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 10;
}

.elms-file-input-custom i {
    font-size: 1.75rem;
    color: var(--brand-primary);
    margin-bottom: 0.75rem;
    transition: transform 0.2s;
}

.elms-file-input-custom:hover i {
    transform: translateY(-3px);
}

.elms-file-input-custom .upload-text {
    font-size: 0.813rem;
    font-weight: 700;
    color: var(--navy-900);
    margin-bottom: 0.25rem;
}

.elms-file-input-custom .upload-hint {
    font-size: 0.688rem;
    font-weight: 600;
    color: var(--slate-400);
}

/* Labels */
.elms-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--navy-900);
    margin-bottom: 0.5rem;
}

/* Buttons */
.elms-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.5rem;
    border-radius: var(--radius-buttons);
    font-weight: 700; /* As per design.md */
    font-size: 0.875rem;
    transition: all 0.2s;
    cursor: pointer;
    border: 1px solid transparent;
}

.elms-btn-primary {
    background-color: var(--brand-primary);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.elms-btn-primary:hover {
    background-color: var(--brand-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.elms-btn-secondary {
    background-color: #ffffff;
    border-color: var(--slate-200);
    color: var(--slate-500);
}

.elms-btn-secondary:hover {
    background-color: #f8fafc;
    border-color: var(--brand-primary);
    color: var(--brand-primary);
}

.elms-btn-danger {
    background-color: #ef4444;
    color: #ffffff;
}

.elms-btn-danger:hover {
    background-color: #dc2626;
}

.elms-btn:active {
    transform: scale(0.98);
}

/* Table Actions */
.elms-action-btn {
    padding: 0.5rem;
    border-radius: var(--radius-general);
    transition: all 0.2s;
    color: var(--slate-400);
}

.elms-action-btn:hover {
    background-color: var(--brand-soft);
    color: var(--brand-primary);
}

/* Modern Utility Classes */
.gradient-brand {
    background: linear-gradient(135deg, var(--navy-900) 0%, var(--brand-primary) 100%);
}

.shadow-soft {
    box-shadow: var(--shadow-md);
}

.shadow-card {
    box-shadow: var(--shadow-md);
}

.rounded-3xl {
    border-radius: 24px !important;
}

/* Custom Scrollbar for Previews */
.custom-scrollbar::-webkit-scrollbar {
    width: 6px;
}

.custom-scrollbar::-webkit-scrollbar-track {
    background: var(--page-bg);
}

.custom-scrollbar::-webkit-scrollbar-thumb {
    background: var(--slate-200);
    border-radius: 10px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: var(--slate-400);
}