/* Main Styles */
:root {
    --primary-color: #6366f1;
    --primary-gradient: linear-gradient(135deg, #6366f1, #4f46e5);
    --secondary-color: #4338ca;
    --accent-color: #f43f5e;
    --light-color: #f8fafc;
    --dark-color: #0f172a;
    --gray-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --card-radius: 20px;
    --btn-radius: 12px;
    --input-radius: 10px;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: #f8fafc;
    color: var(--dark-color);
    min-height: 100vh;
    overflow-x: hidden;
}

/* RTL specific adjustments */
body[dir="rtl"] .overlay-text,
body[dir="rtl"] .mobile-overlay-text,
body[dir="rtl"] .text-center {
    direction: rtl;
    text-align: right;
}

body[dir="rtl"] .form-label,
body[dir="rtl"] .progress-container label {
    text-align: right;
}

body[dir="rtl"] .d-flex.justify-content-between {
    flex-direction: row-reverse;
}

/* Mobile header */
.mobile-header {
    background: var(--primary-gradient);
    color: white;
    padding: 2rem 1.5rem;
    text-align: center;
}

.mobile-overlay-text {
    animation: fadeInUp 1s ease;
}

.mobile-overlay-text h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.mobile-overlay-text span {
    position: relative;
    display: inline-block;
}

.mobile-overlay-text span::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 8px;
    background-color: rgba(255, 255, 255, 0.2);
    bottom: 5px;
    left: 0;
    z-index: -1;
    border-radius: 8px;
}

/* Glass morphism effects */
.glass-effect {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--glass-shadow);
}

/* Background image section */
.bg-image {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.8), rgba(79, 70, 229, 0.9)), 
                url('https://images.unsplash.com/photo-1532465614-6cc8d45f647f?q=80&w=2070') no-repeat center center;
    background-size: cover;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

.bg-image::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    top: -100px;
    right: -100px;
    backdrop-filter: blur(5px);
}

.bg-image::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    bottom: -50px;
    left: -50px;
    backdrop-filter: blur(5px);
}

/* Floating shapes animation */
.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
    overflow: hidden;
}

.shape {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: 50%;
}

.shape-1 {
    width: 120px;
    height: 120px;
    top: 20%;
    left: 10%;
    animation: float 8s ease-in-out infinite;
}

.shape-2 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 15%;
    animation: float 12s ease-in-out infinite;
}

.shape-3 {
    width: 80px;
    height: 80px;
    bottom: 10%;
    left: 20%;
    animation: float 10s ease-in-out infinite 1s;
}

@keyframes float {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
    100% { transform: translateY(0) rotate(0deg); }
}

.overlay-text {
    text-align: center;
    max-width: 600px;
    position: relative;
    z-index: 2;
    animation: fadeInUp 1s ease;
}

.overlay-text h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    letter-spacing: -1px;
    line-height: 1.1;
}

.overlay-text p {
    font-size: 1.35rem;
    opacity: 0.95;
    font-weight: 300;
    max-width: 80%;
    margin: 0 auto;
}

/* Badge styling */
.badge {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    letter-spacing: 1px;
}

.text-primary {
    color: #fff !important;
    position: relative;
    display: inline-block;
}

.text-primary::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 10px;
    background-color: rgba(255, 255, 255, 0.2);
    bottom: 8px;
    left: 0;
    z-index: -1;
    border-radius: 10px;
}

/* Calculator Section */
.calculator-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
}

.calculator-container {
    max-width: 700px;
    width: 100%;
    background-color: white;
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    padding: 3rem;
    margin: 0 auto;
    animation: fadeIn 0.8s ease;
    position: relative;
    overflow: hidden;
}

.calculator-container::before {
    content: '';
    position: absolute;
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(79, 70, 229, 0.1));
    border-radius: 50%;
    top: -75px;
    right: -75px;
}

.calculator-container::after {
    content: '';
    position: absolute;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(79, 70, 229, 0.1));
    border-radius: 50%;
    bottom: -50px;
    left: -50px;
}

/* Icon container styling */
.icon-container {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.2);
    position: relative;
    overflow: hidden;
}

.icon-container::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0.1;
    top: 0;
    left: 0;
}

.calculator-icon {
    font-size: 3rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0;
}

/* Form title styling */
.calculator-container h2 {
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
    font-size: 2rem;
}

.calculator-container .text-muted {
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

/* Form Elements */
.form-label {
    font-weight: 500;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
}

.form-control,
.form-select {
    padding: 0.85rem 1.25rem;
    border: 1px solid #e2e8f0;
    border-radius: var(--input-radius);
    font-size: 1rem;
    transition: all 0.3s ease;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.03);
    height: auto;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

/* Specific fix for the ruler icon in height field */
.fas.fa-ruler-vertical {
    height: 16px;
    width: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: visible;
}

/* Ensure input group text has enough space for icons */
.input-group-text {
    background-color: var(--light-color);
    border: 1px solid #e2e8f0;
    color: var(--primary-color);
    width: 42px;
    min-width: 42px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0.5rem;
}

.input-group-text i {
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Form text helper */
.form-text {
    color: var(--gray-color);
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

.form-text i {
    color: var(--primary-color);
}

/* Gender and Goal Buttons */
.gender-toggle,
.goals-container {
    display: flex;
    gap: 12px;
    width: 100%;
}

.gender-btn,
.goal-btn {
    flex: 1;
    border: 1px solid #e2e8f0;
    background-color: white;
    color: var(--dark-color);
    padding: 0.85rem;
    border-radius: var(--btn-radius);
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.03);
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.gender-btn::before,
.goal-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.btn-check:checked + .gender-btn,
.btn-check:checked + .goal-btn {
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    position: relative;
    background-color: transparent;
}

.btn-check:checked + .gender-btn::before,
.btn-check:checked + .goal-btn::before {
    opacity: 1;
}

/* Click ripple effect */
.click-effect {
    position: absolute;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    width: 100px;
    height: 100px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    animation: ripple 0.5s ease-out;
    pointer-events: none;
}

@keyframes ripple {
    0% {
        transform: translate(-50%, -50%) scale(0);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(3);
        opacity: 0;
    }
}

/* Submit Button */
.btn-primary {
    background: var(--primary-gradient);
    border: none;
    border-radius: var(--btn-radius);
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    padding: 1rem;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.2), transparent);
    transition: all 0.5s ease;
    z-index: -1;
}

.btn-primary:hover, 
.btn-primary:focus {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover::before {
    left: 100%;
}

/* Spinner animation */
.spinner-border {
    vertical-align: middle;
}

/* Result Section */
.result-container {
    margin-top: 2rem;
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    border-radius: var(--card-radius);
    padding: 2.5rem;
    border: 1px solid rgba(226, 232, 240, 0.5);
    position: relative;
    overflow: hidden;
}

.result-container::before {
    content: '';
    position: absolute;
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(79, 70, 229, 0.1));
    border-radius: 50%;
    top: -60px;
    right: -60px;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.result-header h3 {
    font-weight: 700;
    margin: 0;
    font-size: 1.75rem;
    color: var(--dark-color);
}

#recalculate {
    border-radius: var(--btn-radius);
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
}

.result-card {
    background-color: white;
    border-radius: var(--card-radius);
    padding: 2rem 1.5rem;
    box-shadow: var(--card-shadow);
    height: 100%;
    transition: all 0.4s ease;
    border: 1px solid rgba(226, 232, 240, 0.5);
}

.result-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.result-card.primary {
    background: var(--primary-gradient);
    color: white;
    border: none;
}

.result-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.result-card.primary .result-icon {
    color: white;
    background: white;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.result-value {
    font-size: 3rem;
    font-weight: 800;
    margin: 0.5rem 0;
    line-height: 1;
}

.result-unit {
    color: var(--gray-color);
    font-size: 0.95rem;
    font-weight: 400;
}

.result-card.primary .result-unit {
    color: rgba(255, 255, 255, 0.8);
}

.result-card h5 {
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

/* Macronutrient Section */
.nutrition-breakdown {
    background-color: white;
    border-radius: var(--card-radius);
    padding: 2rem;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(226, 232, 240, 0.5);
    margin-top: 2rem;
}

.nutrition-breakdown h4 {
    margin-bottom: 1.5rem;
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--dark-color);
}

.progress-container {
    margin-bottom: 1.5rem;
}

.progress-container:last-child {
    margin-bottom: 0;
}

.progress-container label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 500;
    font-size: 1.05rem;
    color: var(--dark-color);
}

.progress {
    height: 12px;
    border-radius: 6px;
    margin-bottom: 0.75rem;
    background-color: rgba(226, 232, 240, 0.5);
    overflow: hidden;
}

.progress-bar {
    border-radius: 6px;
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0));
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.d-flex {
    font-weight: 500;
}

#protein-grams, #carbs-grams, #fats-grams {
    color: var(--dark-color);
}

#protein-calories, #carbs-calories, #fats-calories {
    color: var(--gray-color);
}

/* Footer text */
.text-center .text-muted {
    color: var(--gray-color);
    font-size: 0.85rem;
}

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

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Adding pulse animation to the submit button */
.btn-primary {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(99, 102, 241, 0); }
    100% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0); }
}

/* Touch optimization for mobile */
@media (hover: none) {
    .result-card:hover {
        transform: none;
        box-shadow: var(--card-shadow);
    }
}

/* Responsive adjustments */
@media (max-width: 1199.98px) {
    .overlay-text h1 {
        font-size: 3.5rem;
    }
}

@media (max-width: 991.98px) {
    .calculator-section {
        padding: 1.5rem;
        min-height: auto;
    }

    .calculator-container {
        padding: 2rem;
        margin: 2rem 0;
    }

    .overlay-text h1 {
        font-size: 3rem;
    }
    
    .result-container {
        padding: 2rem;
    }
    
    .bg-image {
        min-height: 50vh;
    }
}

@media (max-width: 767.98px) {
    .result-card {
        margin-bottom: 1.5rem;
    }
    
    .overlay-text p {
        max-width: 100%;
        font-size: 1.1rem;
    }
    
    .overlay-text h1 {
        font-size: 2.5rem;
    }
    
    .calculator-container {
        padding: 1.5rem;
    }
    
    .result-value {
        font-size: 2.5rem;
    }
    
    .icon-container {
        width: 70px;
        height: 70px;
    }
    
    .calculator-icon {
        font-size: 2.5rem;
    }
    
    .form-control, .form-select {
        padding: 0.75rem 1rem;
    }
    
    .gender-btn, .goal-btn {
        padding: 0.75rem 0.5rem;
    }
    
    .bg-image {
        padding: 2rem;
    }
}

@media (max-width: 575.98px) {
    .calculator-container {
        padding: 1.25rem;
    }
    
    .overlay-text h1 {
        font-size: 2rem;
        margin-bottom: 1rem;
    }
    
    .overlay-text p {
        font-size: 1rem;
    }
    
    .badge {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
    
    .calculator-container h2 {
        font-size: 1.75rem;
    }
    
    .form-label {
        font-size: 0.95rem;
    }
    
    .gender-btn i, .goal-btn i {
        margin-right: 0.25rem !important;
    }
    
    .gender-toggle, .goals-container {
        gap: 8px;
    }
    
    .result-container {
        padding: 1.5rem;
    }
    
    .result-card {
        padding: 1.5rem 1rem;
    }
    
    .result-value {
        font-size: 2rem;
    }
    
    .nutrition-breakdown {
        padding: 1.5rem;
    }
    
    .nutrition-breakdown h4 {
        font-size: 1.2rem;
    }
    
    .progress-container label {
        font-size: 0.95rem;
    }
    
    .row.mb-4 {
        margin-bottom: 1rem !important;
    }
    
    .mb-4 {
        margin-bottom: 1rem !important;
    }
    
    .btn-primary {
        padding: 0.85rem;
    }
    
    .input-group-text {
        width: 38px;
        min-width: 38px;
        padding: 0.5rem 0.25rem;
    }
    
    /* Adjust input padding for better mobile display */
    .form-control,
    .form-select {
        padding: 0.75rem 0.75rem;
        font-size: 0.95rem;
    }
}

@media (max-width: 375.98px) {
    .overlay-text h1 {
        font-size: 1.75rem;
    }
    
    .calculator-container h2 {
        font-size: 1.5rem;
    }
    
    .result-header h3 {
        font-size: 1.4rem;
    }
    
    .gender-btn, .goal-btn {
        font-size: 0.85rem;
        padding: 0.75rem 0.25rem;
    }
    
    .result-card h5 {
        font-size: 1rem;
    }
    
    .result-icon {
        font-size: 2rem;
        margin-bottom: 1rem;
    }
    
    /* Hide text on smaller screens for better UI */
    .gender-btn span, .goal-btn span {
        display: none;
    }
    
    .gender-btn i, .goal-btn i {
        margin-right: 0 !important;
        font-size: 1.2rem;
    }
    
    .input-group-text {
        width: 36px;
        min-width: 36px;
        padding: 0.4rem 0.2rem;
    }
}

/* Portrait and landscape orientations */
@media (orientation: landscape) and (max-height: 600px) {
    .bg-image {
        min-height: auto;
        padding: 2rem;
    }
    
    .calculator-section {
        min-height: auto;
        padding: 2rem;
    }
    
    .calculator-container {
        margin: 1rem 0;
    }
    
    .overlay-text h1 {
        font-size: 2.5rem;
    }
    
    .mobile-header {
        padding: 1rem;
    }
    
    .mobile-overlay-text h1 {
        font-size: 1.5rem;
        margin-bottom: 0;
    }
}

/* Fix for extremely small devices */
@media (max-width: 320px) {
    .gender-btn, .goal-btn {
        font-size: 0.8rem;
    }
    
    .form-control, .form-select {
        font-size: 0.9rem;
    }
    
    .calculator-container {
        padding: 1rem;
    }
    
    .result-container {
        padding: 1.25rem;
    }
}

/* Language selector */
.language-selector {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    font-family: 'Poppins', sans-serif;
}

.current-language {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 30px;
    padding: 8px 16px;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.current-language:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

.flag-icon {
    margin-right: 8px;
    border-radius: 4px;
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    width: 200px;
    overflow: hidden;
    transform-origin: top right;
    transform: scale(0.8);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.language-dropdown.show {
    transform: scale(1);
    opacity: 1;
    visibility: visible;
}

.language-option {
    padding: 12px 16px;
    display: flex;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.language-option:hover {
    background-color: rgba(99, 102, 241, 0.1);
}

.language-option.active {
    background-color: rgba(99, 102, 241, 0.2);
    font-weight: 600;
}

/* RTL Support */
[dir="rtl"] {
    text-align: right;
}

[dir="rtl"] .flag-icon {
    margin-right: 0;
    margin-left: 8px;
}

[dir="rtl"] .language-dropdown {
    right: auto;
    left: 0;
    transform-origin: top left;
}

[dir="rtl"] .fa-chevron-down,
[dir="rtl"] .fa-calculator,
[dir="rtl"] .fa-redo {
    transform: scaleX(-1);
}

[dir="rtl"] .me-2 {
    margin-right: 0 !important;
    margin-left: 0.5rem !important;
}

[dir="rtl"] .ms-2 {
    margin-left: 0 !important;
    margin-right: 0.5rem !important;
}

/* Ensure input groups display correctly */
.input-group {
    display: flex;
    flex-wrap: nowrap;
    align-items: stretch;
    width: 100%;
}