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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #1f2937;
    background-color: #faf9f7;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p { margin-bottom: 1rem; }

:root {
    --primary-green: #10b981;
    --secondary-navy: #003b59;
    --success-green: #10B981;
    --danger-red: #EF4444;
    --warning-yellow: #F59E0B;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;

    --primary-blue: var(--primary-green);
    --secondary-yellow: var(--secondary-navy);
}

.container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 1rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    font-size: 15px;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: 12px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.2s ease;
    background: white;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(11,115,80,0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-hint {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-top: 0.25rem;
    display: block;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 48px;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background: #085a42;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(11,115,80,0.3);
}

.btn-generate {
    width: 100%;
    font-size: 18px;
    padding: 1.25rem;
    margin-top: 1rem;
}

.btn-copy {
    background: var(--success-green);
    color: white;
    font-size: 14px;
    padding: 0.75rem 1.5rem;
}

.btn-copy:hover {
    background: #047857;
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-200);
    border-color: var(--gray-400);
}

.btn-danger {
    background: var(--danger-red);
    color: white;
}

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

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 14px;
}

.loading {
    text-align: center;
    padding: 3rem 0;
}

.loading-state {
    text-align: center;
    padding: 2rem 0;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-200);
    border-top: 3px solid var(--primary-green);
    border-radius: 50%;
    margin: 0 auto 1rem;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.btn-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--success-green);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 1000;
    transition: all 0.3s ease;
}

.toast.hidden {
    opacity: 0;
    transform: translateX(-50%) translateY(100px);
    pointer-events: none;
}

.toast p {
    margin: 0;
    font-weight: 500;
}

.hidden { display: none !important; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-1 { margin-top: 1rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mt-2 { margin-top: 2rem; }
.p-1 { padding: 1rem; }
.p-2 { padding: 2rem; }

.fade-in { 
    animation: fadeIn 0.3s ease-in-out; 
}

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


@media (min-width: 640px) {
    .container {
        max-width: 640px;
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 768px;
    }
}

@media (min-width: 1024px) {
    .container {
        max-width: 1024px;
    }
}

@media print {
    .btn, .sidebar, .top-header { display: none; }
    * { color: black !important; }
}