:root {
    /* Nordic color palette - minimalist and clear */
    --nordic-white: #ffffff;
    --nordic-snow: #fafafa;
    --nordic-frost: #f5f5f7;
    --nordic-mist: #e8e8ed;
    --nordic-silver: #d1d1d6;
    --nordic-stone: #8e8e93;
    --nordic-charcoal: #48484a;
    --nordic-night: #1c1c1e;
    
    /* Accent colors - subtle and professional */
    --nordic-blue: #007aff;
    --nordic-green: #34c759;
    --nordic-red: #ff3b30;
    --nordic-orange: #ff9500;
    
    /* Functional colors */
    --bg-primary: var(--nordic-white);
    --bg-secondary: var(--nordic-frost);
    --text-primary: var(--nordic-night);
    --text-secondary: var(--nordic-stone);
    --border-color: var(--nordic-mist);
    --accent: var(--nordic-blue);
    --success: var(--nordic-green);
    --danger: var(--nordic-red);
    --warning: var(--nordic-orange);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 0.5em;
}

h1 { font-size: 2.5rem; font-weight: 700; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Nordic Card */
.nordic-card {
    background: var(--nordic-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    transition: all 0.2s ease;
}

.nordic-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* Nordic Button */
.btn-nordic {
    display: inline-block;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    letter-spacing: -0.02em;
}

.btn-nordic-primary {
    background: var(--nordic-blue);
    color: white;
}

.btn-nordic-primary:hover {
    background: #0051d5;
    transform: translateY(-1px);
}

.btn-nordic-secondary {
    background: var(--nordic-frost);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-nordic-secondary:hover {
    background: var(--nordic-mist);
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-control-nordic {
    width: 100%;
    padding: 12px 16px;
    font-size: 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--nordic-white);
    transition: all 0.2s ease;
    -webkit-appearance: none;
}

.form-control-nordic:focus {
    outline: none;
    border-color: var(--nordic-blue);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

/* OTP Input */
.otp-input-group {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin: 24px 0;
}

.otp-input {
    width: 52px;
    height: 56px;
    text-align: center;
    font-size: 24px;
    font-weight: 600;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--nordic-frost);
    transition: all 0.2s ease;
}

.otp-input:focus {
    outline: none;
    border-color: var(--nordic-blue);
    background: var(--nordic-white);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

/* Navigation */
.navbar-nordic {
    background: var(--nordic-white);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
}

.navbar-brand {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
}

/* Alerts */
.alert-nordic {
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    border: 1px solid;
    font-size: 14px;
}

.alert-success {
    background: rgba(52, 199, 89, 0.1);
    border-color: rgba(52, 199, 89, 0.2);
    color: #00802b;
}

.alert-error {
    background: rgba(255, 59, 48, 0.1);
    border-color: rgba(255, 59, 48, 0.2);
    color: #d70015;
}

.alert-info {
    background: rgba(0, 122, 255, 0.1);
    border-color: rgba(0, 122, 255, 0.2);
    color: #0051d5;
}

/* Tables */
.table-nordic {
    width: 100%;
    border-collapse: collapse;
}

.table-nordic thead {
    background: var(--nordic-frost);
}

.table-nordic th {
    padding: 12px;
    text-align: left;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.table-nordic td {
    padding: 16px 12px;
    border-bottom: 1px solid var(--nordic-mist);
}

.table-nordic tbody tr:hover {
    background: var(--nordic-frost);
}

/* Badges */
.badge-nordic {
    display: inline-block;
    padding: 4px 8px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background: rgba(52, 199, 89, 0.15);
    color: var(--nordic-green);
}

.badge-primary {
    background: rgba(0, 122, 255, 0.15);
    color: var(--nordic-blue);
}

/* Container */
.container-nordic {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    pointer-events: none;
}

.toast {
    background: var(--nordic-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px 20px;
    margin-bottom: 12px;
    min-width: 300px;
    max-width: 500px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 12px;
    pointer-events: auto;
    animation: slideInRight 0.3s ease;
    transition: all 0.3s ease;
}

.toast.hiding {
    animation: slideOutRight 0.3s ease;
    opacity: 0;
}

.toast-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    margin-bottom: 4px;
    font-size: 14px;
}

.toast-message {
    font-size: 13px;
    color: var(--text-secondary);
}

.toast-close {
    background: none;
    border: none;
    padding: 4px;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1;
    opacity: 0.5;
    transition: opacity 0.2s;
}

.toast-close:hover {
    opacity: 1;
}

.toast.toast-success {
    border-color: var(--nordic-green);
    background: linear-gradient(135deg, #ffffff, rgba(52, 199, 89, 0.05));
}

.toast.toast-success .toast-icon {
    color: var(--nordic-green);
}

.toast.toast-error {
    border-color: var(--nordic-red);
    background: linear-gradient(135deg, #ffffff, rgba(255, 59, 48, 0.05));
}

.toast.toast-error .toast-icon {
    color: var(--nordic-red);
}

.toast.toast-warning {
    border-color: var(--warning);
    background: linear-gradient(135deg, #ffffff, rgba(255, 149, 0, 0.05));
}

.toast.toast-warning .toast-icon {
    color: var(--warning);
}

.toast.toast-info {
    border-color: var(--nordic-blue);
    background: linear-gradient(135deg, #ffffff, rgba(0, 122, 255, 0.05));
}

.toast.toast-info .toast-icon {
    color: var(--nordic-blue);
}

/* Animations */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideOutRight {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

.animate-in {
    animation: slideIn 0.3s ease;
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    
    .container-nordic {
        padding: 0 16px;
    }
    
    .nordic-card {
        padding: 16px;
    }
}