/* Tax Invoice Request Form Styles - BrunchTimeShop Inspired Design */

:root {
    /* BrunchTimeShop Color Palette */
    --primary-gold: #D4AF37;
    --primary-gold-hover: #B8941F;
    --primary-gold-light: #E8D5A3;
    --primary-gold-dark: #9B7A1A;
    --text-black: #000000;
    --text-dark: #1a1a1a;
    --text-secondary: #4a4a4a;
    --text-light: #666666;
    --bg-white: #FFFFFF;
    --bg-light: #FAFAFA;
    --bg-gray: #F5F5F5;
    --border-gray: #D3D3D3;
    --border-light: #E8E8E8;
    --border-dark: #B0B0B0;
    
    /* Status Colors */
    --error-color: #DC3545;
    --error-light: #F8D7DA;
    --success-color: #28A745;
    --success-light: #D4EDDA;
    --warning-color: #FFC107;
    
    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.18);
    --shadow-gold: 0 4px 12px rgba(212, 175, 55, 0.3);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
}

/* Base Styles - Mobile First */
* {
    box-sizing: border-box;
}

.tir-form {
    font-family: var(--font-family);
    max-width: 100%;
    margin: 0 auto;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--bg-white) 0%, var(--bg-light) 100%);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    animation: fadeInUp 0.6s ease-out;
    position: relative;
    overflow: hidden;
}

.tir-form::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-gold) 0%, var(--primary-gold-dark) 100%);
    z-index: 1;
}

.tir-form h2 {
    color: var(--text-black);
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    margin-top: 0;
    text-align: center;
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    letter-spacing: -0.03em;
    position: relative;
    padding-bottom: 1rem;
}

.tir-form h2::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-gold), transparent);
    border-radius: 2px;
}

/* Form Grid - Mobile First */
.tir-form .form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

/* Form Group */
.tir-form .form-group {
    margin-bottom: 1.75rem;
    position: relative;
    animation: slideUp 0.4s ease-out backwards;
}

.tir-form .form-group:nth-child(1) { animation-delay: 0.05s; }
.tir-form .form-group:nth-child(2) { animation-delay: 0.1s; }
.tir-form .form-group:nth-child(3) { animation-delay: 0.15s; }
.tir-form .form-group:nth-child(4) { animation-delay: 0.2s; }
.tir-form .form-group:nth-child(5) { animation-delay: 0.25s; }
.tir-form .form-group:nth-child(6) { animation-delay: 0.3s; }

.tir-form .form-group.required label:after {
    content: " *";
    color: var(--primary-gold);
    font-weight: var(--font-weight-bold);
    margin-left: 3px;
}

.tir-form label {
    display: block;
    font-weight: var(--font-weight-semibold);
    margin-bottom: 0.625rem;
    color: var(--text-dark);
    font-size: 0.95rem;
    line-height: 1.5;
    transition: color var(--transition-fast);
    letter-spacing: 0.01em;
}

.tir-form label:focus-within {
    color: var(--primary-gold-dark);
}

/* Input Fields */
.tir-form input,
.tir-form select,
.tir-form textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    font-size: 1rem;
    line-height: 1.5;
    border: 2px solid var(--border-gray);
    border-radius: var(--radius-md);
    background-color: var(--bg-white);
    color: var(--text-black);
    transition: all var(--transition-base);
    font-family: inherit;
    -webkit-appearance: none;
    appearance: none;
    box-shadow: var(--shadow-xs);
}

.tir-form input:focus,
.tir-form select:focus,
.tir-form textarea:focus {
    outline: none;
    border-color: var(--primary-gold);
    box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.1), var(--shadow-md);
    background-color: var(--bg-white);
    transform: translateY(-2px);
}

.tir-form input:hover:not(:disabled):not(:focus),
.tir-form select:hover:not(:disabled):not(:focus),
.tir-form textarea:hover:not(:disabled):not(:focus) {
    border-color: var(--border-dark);
    box-shadow: var(--shadow-sm);
}

.tir-form input::placeholder,
.tir-form textarea::placeholder {
    color: var(--text-light);
    opacity: 1;
}

.tir-form input:disabled,
.tir-form select:disabled,
.tir-form textarea:disabled {
    background-color: var(--bg-gray);
    color: var(--text-light);
    cursor: not-allowed;
    opacity: 0.7;
    border-color: var(--border-light);
}

/* Select Styling */
.tir-form select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14'%3E%3Cpath fill='%23D4AF37' d='M7 10L2 5h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 14px;
    padding-right: 3rem;
    cursor: pointer;
}

/* Textarea */
.tir-form textarea {
    resize: vertical;
    min-height: 110px;
    font-family: inherit;
}

/* Submit Button - Gold Theme */
.tir-form .submit-button {
    background: linear-gradient(135deg, var(--primary-gold) 0%, var(--primary-gold-dark) 100%);
    color: var(--text-black);
    border: 2px solid var(--primary-gold-dark);
    padding: 1.125rem 2.5rem;
    font-size: 1.05rem;
    font-weight: var(--font-weight-bold);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin: 2.5rem auto 0;
    width: 100%;
    max-width: 100%;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-gold);
    letter-spacing: 0.03em;
    text-transform: uppercase;
    font-size: 0.95rem;
}

.tir-form .submit-button::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.tir-form .submit-button:hover:not(:disabled)::before {
    left: 100%;
}

.tir-form .submit-button:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-gold-hover) 0%, var(--primary-gold) 100%);
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl), var(--shadow-gold);
    border-color: var(--primary-gold-dark);
}

.tir-form .submit-button:active:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.tir-form .submit-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    background: var(--bg-gray);
    border-color: var(--border-gray);
    color: var(--text-light);
}

.tir-form .submit-button .button-text {
    position: relative;
    z-index: 1;
}

/* Error Messages */
.tir-form .error-message {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.625rem;
    display: none;
    padding: 0.75rem 1rem;
    background-color: var(--error-light);
    border-left: 4px solid var(--error-color);
    border-radius: var(--radius-sm);
    animation: slideDown 0.3s ease-out;
    font-weight: var(--font-weight-medium);
}

.tir-form .error-message.show {
    display: block;
}

.tir-form input.error,
.tir-form select.error,
.tir-form textarea.error {
    border-color: var(--error-color);
    background-color: var(--error-light);
    animation: shake 0.5s ease-out;
}

.tir-form input.error:focus,
.tir-form select.error:focus,
.tir-form textarea.error:focus {
    box-shadow: 0 0 0 4px rgba(220, 53, 69, 0.15), var(--shadow-md);
}

/* Success Message */
.tir-form .success-message {
    background: linear-gradient(135deg, var(--success-light) 0%, rgba(40, 167, 69, 0.05) 100%);
    color: var(--success-color);
    padding: 2rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    text-align: center;
    display: none;
    border: 2px solid var(--success-color);
    box-shadow: var(--shadow-md);
    animation: slideDown 0.5s ease-out, fadeIn 0.5s ease-out;
    position: relative;
    overflow: hidden;
}

.tir-form .success-message::before {
    content: "✓";
    display: inline-block;
    width: 3rem;
    height: 3rem;
    line-height: 3rem;
    background: linear-gradient(135deg, var(--success-color) 0%, #1e7e34 100%);
    color: white;
    border-radius: 50%;
    font-size: 1.75rem;
    font-weight: bold;
    margin-right: 1rem;
    box-shadow: var(--shadow-md);
    animation: scaleIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55) 0.2s backwards;
}

.tir-form .success-message.show {
    display: block;
}

/* Loading State */
.tir-form .loading {
    position: relative;
    opacity: 0.7;
    pointer-events: none;
}

.tir-form .submit-button.loading {
    color: transparent;
}

.tir-form .submit-button.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid rgba(0, 0, 0, 0.2);
    border-radius: 50%;
    border-top-color: var(--text-black);
    animation: spin 0.8s infinite linear;
    z-index: 2;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(25px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-8px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(8px);
    }
}

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

@keyframes scaleIn {
    from {
        transform: scale(0);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Responsive Design - Tablet */
@media (min-width: 640px) {
    .tir-form {
        padding: 2.5rem;
        box-shadow: var(--shadow-xl);
        border-radius: var(--radius-xl);
    }

    .tir-form h2 {
        font-size: 2.25rem;
    }

    .tir-form .form-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }

    .tir-form .submit-button {
        max-width: 400px;
        padding: 1.25rem 3rem;
    }
}

/* Responsive Design - Desktop */
@media (min-width: 1024px) {
    .tir-form {
        max-width: 1000px;
        padding: 3.5rem;
        box-shadow: var(--shadow-xl);
        border-radius: var(--radius-xl);
    }

    .tir-form h2 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }

    .tir-form .form-grid {
        gap: 2.25rem;
    }

    .tir-form .form-group {
        margin-bottom: 2rem;
    }

    .tir-form input,
    .tir-form select,
    .tir-form textarea {
        padding: 1.125rem 1.5rem;
        font-size: 1.05rem;
    }
}

/* Accessibility */
.tir-form input:focus-visible,
.tir-form select:focus-visible,
.tir-form textarea:focus-visible,
.tir-form .submit-button:focus-visible {
    outline: 3px solid var(--primary-gold);
    outline-offset: 3px;
}

/* Print Styles */
@media print {
    .tir-form {
        box-shadow: none;
        border: 1px solid var(--border-gray);
    }

    .tir-form .submit-button {
        display: none;
    }
    
    .tir-form::before {
        display: none;
    }
}