/* CALCULATOR SECTION - DARK THEME */
.calculator-section {
    min-height: 75vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    padding: 20px 0;
}

.calculator-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 24px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    max-width: 460px;
    width: 100%;
    padding: 44px 40px 40px 40px;
    margin: 48px auto 36px auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    transition: all 0.3s ease;
}

.calculator-card:hover {
    box-shadow: 0 14px 48px rgba(105, 178, 84, 0.3);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(105, 178, 84, 0.2);
}

/* TITLE - DARK THEME */
.calculator-title,
.calculator-calories-title {
    font-size: 2.3rem;
    font-weight: 800;
    color: #ffffff;
    text-align: center;
    margin-bottom: 32px;
    letter-spacing: 0.3px;
    line-height: 1.2;
}

/* FORM - OPTIMIZED SPACING */
.calculator-card form,
.modern-form {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 36px;
}

/* LABELS - DARK THEME */
.form-group label,
.calculator-card label {
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 8px;
    font-size: 1.05rem;
    text-align: left;
    display: block;
}

/* INPUTS - DARK THEME */
.calculator-card input,
.calculator-card select,
.form-group input,
.form-group select {
    border: 2px solid rgba(105, 178, 84, 0.3);
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    border-radius: 10px;
    font-size: 1.15rem;
    padding: 14px 16px;
    margin-bottom: 4px;
    font-family: inherit;
    outline: none;
    transition: all 0.25s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    width: 100%;
    min-height: 48px;
}

.calculator-card select option {
    background: #1f1f1f;
    color: #ffffff;
}

.calculator-card input:hover,
.calculator-card select:hover,
.form-group input:hover,
.form-group select:hover {
    border-color: rgba(105, 178, 84, 0.5);
    box-shadow: 0 3px 14px rgba(105, 178, 84, 0.2);
    background: rgba(255, 255, 255, 0.08);
}

.calculator-card input:focus,
.calculator-card select:focus,
.form-group input:focus,
.form-group select:focus {
    border: 2px solid #69B254;
    background: rgba(105, 178, 84, 0.1);
    box-shadow: 0 4px 18px rgba(105, 178, 84, 0.4);
    transform: translateY(-1px);
}

/* SUBMIT BUTTON - OPTIMIZED */
.calculator-card button,
.calculator-card .submit-button,
.submit-button {
    background: linear-gradient(135deg, #69B254 0%, #5fa149 100%);
    color: #fff;
    font-weight: 700;
    font-size: 1.25rem;
    padding: 16px 0;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    width: 100%;
    margin-top: 12px;
    box-shadow: 0 4px 16px rgba(105, 178, 84, 0.35);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.5px;
    min-height: 54px;
    position: relative;
    overflow: hidden;
}

/* Button ripple effect */
.calculator-card button::before,
.calculator-card .submit-button::before,
.submit-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.calculator-card button:hover::before,
.calculator-card .submit-button:hover::before,
.submit-button:hover::before {
    width: 300px;
    height: 300px;
}

.calculator-card button:hover,
.calculator-card .submit-button:hover,
.submit-button:hover {
    background: linear-gradient(135deg, #5fa149 0%, #4d9342 100%);
    transform: translateY(-3px);
    box-shadow: 0 6px 24px rgba(105, 178, 84, 0.45);
}

.calculator-card button:active,
.calculator-card .submit-button:active,
.submit-button:active {
    transform: translateY(-1px);
    box-shadow: 0 3px 12px rgba(105, 178, 84, 0.35);
}

/* RESULTS - IMPROVED */
.results-container {
    margin-top: 20px;
    width: 100%;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.result-item {
    margin-bottom: 4px;
    animation: fadeInUp 0.5s ease;
}

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

.result-value {
    font-size: 2.9rem;
    font-weight: 800;
    color: #69B254;
    margin-bottom: 8px;
    letter-spacing: 1px;
    text-shadow: 0 2px 8px rgba(105, 178, 84, 0.15);
}

.result-label {
    font-size: 1.3rem;
    color: #ffffff;
    font-weight: 700;
    margin-bottom: 10px;
}

.bmi-status {
    display: inline-block;
    background: rgba(105, 178, 84, 0.15);
    color: #7bc463;
    border: 1px solid rgba(105, 178, 84, 0.3);
    border-radius: 12px;
    font-size: 1.23rem;
    padding: 9px 26px;
    font-weight: 600;
    margin-bottom: 8px;
    margin-top: 8px;
}

.result-message {
    font-size: 1.13rem;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 8px;
    font-weight: 500;
    text-align: center;
    max-width: 96%;
    word-break: break-word;
}

#detailed-recommendations {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.85);
    background: none;
    margin-top: 8px;
    margin-bottom: 6px;
    line-height: 1.7;
    text-align: center;
    max-width: 97%;
}

.learn-more-button {
    display: inline-block;
    margin-top: 10px;
    padding: 11px 26px;
    border-radius: 10px;
    background: linear-gradient(93deg, #69B254 0%, #7fc961 100%);
    color: #fff;
    font-size: 1.12rem;
    font-weight: 700;
    border: none;
    text-decoration: none;
    transition: background .18s, transform .12s;
    box-shadow: 0 2px 12px rgba(105,178,84,0.15);
    cursor: pointer;
}
.learn-more-button:hover,
.learn-more-button:focus {
    background: linear-gradient(91deg, #7fc961 0%, #69B254 100%);
    transform: translateY(-2px) scale(1.03);
}

.upit-button {
    background: linear-gradient(93deg, #69B254 0%, #7fc961 100%);
    color: #fff;
    font-weight: 700;
    padding: 12px 32px;
    border-radius: 10px;
    font-size: 1.18rem;
    box-shadow: 0 2px 12px rgba(105,178,84,0.15);
    letter-spacing: 0.5px;
    transition: background .18s, transform .12s;
    border: none;
    margin-top: 12px;
    margin-bottom: 3px;
    cursor: pointer;
}
.upit-button:hover,
.upit-button:focus {
    background: linear-gradient(91deg, #7fc961 0%, #69B254 100%);
    transform: translateY(-2px) scale(1.03);
}

/* RESPONSIVE - TABLET/LAPTOP */
@media (max-width: 1024px) {
    .calculator-card {
        max-width: 520px;
        padding: 48px 44px 44px 44px;
        margin: 40px auto 32px auto;
    }

    .calculator-title,
    .calculator-calories-title {
        font-size: 2.4rem;
        margin-bottom: 36px;
    }

    .calculator-card input,
    .calculator-card select,
    .form-group input,
    .form-group select {
        padding: 15px 18px;
        font-size: 1.18rem;
        min-height: 50px;
    }

    .submit-button {
        font-size: 1.3rem;
        padding: 17px 0;
        min-height: 56px;
    }

    .result-value {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .calculator-section {
        min-height: 65vh;
        padding: 24px 0;
    }

    .calculator-card {
        max-width: 480px;
        padding: 36px 32px 32px 32px;
        margin: 28px auto 24px auto;
        border-radius: 20px;
    }

    .calculator-title,
    .calculator-calories-title {
        font-size: 2rem;
        margin-bottom: 28px;
    }

    .calculator-card form,
    .modern-form {
        gap: 18px;
    }

    .calculator-card input,
    .calculator-card select,
    .form-group input,
    .form-group select {
        padding: 13px 16px;
        font-size: 1.12rem;
        border-radius: 10px;
        min-height: 50px;
    }

    .submit-button {
        font-size: 1.2rem;
        padding: 15px 0;
        border-radius: 10px;
        min-height: 52px;
    }

    .result-value {
        font-size: 2.5rem;
    }

    .result-label {
        font-size: 1.22rem;
    }

    .result-message {
        font-size: 1.08rem;
    }

    .bmi-status {
        font-size: 1.15rem;
        padding: 10px 24px;
    }
}

/* RESPONSIVE - MOBILE */
@media (max-width: 600px) {
    .calculator-section {
        min-height: 60vh;
        padding: 20px 0;
    }

    .calculator-card {
        max-width: 95vw;
        width: calc(100vw - 24px);
        padding: 32px 24px 28px 24px;
        margin: 20px auto;
        border-radius: 18px;
        box-shadow: 0 8px 30px rgba(44,62,80,0.14);
    }

    .calculator-title,
    .calculator-calories-title {
        font-size: 1.75rem;
        margin-bottom: 24px;
        letter-spacing: 0.2px;
    }

    .calculator-card form,
    .modern-form {
        gap: 18px;
        margin-bottom: 28px;
    }

    .form-group label,
    .calculator-card label {
        font-size: 1.05rem;
        margin-bottom: 8px;
    }

    .calculator-card input,
    .calculator-card select,
    .form-group input,
    .form-group select {
        padding: 14px 16px;
        font-size: 1.12rem;
        border-radius: 10px;
        margin-bottom: 6px;
        min-height: 50px;
    }

    .submit-button {
        font-size: 1.15rem;
        padding: 15px 0;
        border-radius: 10px;
        margin-top: 8px;
        min-height: 52px;
    }

    .results-container {
        gap: 18px;
        margin-top: 24px;
    }

    .result-value {
        font-size: 2.3rem;
        margin-bottom: 6px;
    }

    .result-label {
        font-size: 1.15rem;
        margin-bottom: 8px;
    }

    .result-message {
        font-size: 1.08rem;
        margin-top: 8px;
        line-height: 1.6;
    }

    .bmi-status {
        font-size: 1.08rem;
        padding: 9px 22px;
        border-radius: 10px;
    }

    #detailed-recommendations {
        font-size: 1.05rem;
        line-height: 1.65;
        margin-top: 8px;
    }
}

@media (max-width: 480px) {
    .calculator-card {
        width: calc(100vw - 20px);
        padding: 28px 20px 24px 20px;
        margin: 16px auto;
        border-radius: 16px;
    }

    .calculator-title,
    .calculator-calories-title {
        font-size: 1.6rem;
        margin-bottom: 20px;
    }

    .calculator-card form,
    .modern-form {
        gap: 16px;
        margin-bottom: 24px;
    }

    .form-group label,
    .calculator-card label {
        font-size: 1.02rem;
    }

    .calculator-card input,
    .calculator-card select,
    .form-group input,
    .form-group select {
        padding: 13px 14px;
        font-size: 1.08rem;
        border-radius: 8px;
        min-height: 48px;
    }

    .submit-button {
        font-size: 1.12rem;
        padding: 14px 0;
        border-radius: 9px;
        min-height: 50px;
    }

    .result-value {
        font-size: 2.1rem;
    }

    .result-label {
        font-size: 1.1rem;
    }

    .result-message {
        font-size: 1.05rem;
    }

    .bmi-status {
        font-size: 1.05rem;
        padding: 8px 20px;
    }

    #detailed-recommendations {
        font-size: 1.02rem;
    }
}

@media (max-width: 360px) {
    .calculator-card {
        width: calc(100vw - 16px);
        padding: 24px 18px 20px 18px;
        margin: 14px auto;
        border-radius: 14px;
    }

    .calculator-title,
    .calculator-calories-title {
        font-size: 1.5rem;
        margin-bottom: 18px;
    }

    .calculator-card input,
    .calculator-card select,
    .form-group input,
    .form-group select {
        padding: 12px 14px;
        font-size: 1.05rem;
        min-height: 46px;
    }

    .submit-button {
        font-size: 1.08rem;
        padding: 13px 0;
        min-height: 48px;
    }

    .result-value {
        font-size: 2rem;
    }

    .result-label {
        font-size: 1.08rem;
    }

    .result-message,
    #detailed-recommendations {
        font-size: 1.02rem;
    }
}

/* ===== LANDSCAPE ORIENTATION OPTIMIZATIONS ===== */

/* Mobile Landscape - Compact Calculator Forms */
@media (max-width: 900px) and (max-height: 500px) and (orientation: landscape) {
    .calculator-section {
        min-height: auto;
        padding: 16px 0;
    }

    .calculator-card {
        max-width: 90vw;
        padding: 24px 28px 20px;
        margin: 16px auto;
    }

    .calculator-title,
    .calculator-calories-title {
        font-size: 1.6rem;
        margin-bottom: 18px;
    }

    .calculator-card form,
    .modern-form {
        gap: 14px;
        margin-bottom: 20px;
    }

    .calculator-card input,
    .calculator-card select,
    .form-group input,
    .form-group select {
        padding: 10px 14px;
        font-size: 1.05rem;
        min-height: 44px;
    }

    .submit-button {
        padding: 12px 0;
        font-size: 1.1rem;
        min-height: 46px;
        margin-top: 8px;
    }

    .results-container {
        gap: 14px;
        margin-top: 18px;
    }

    .result-value {
        font-size: 2.2rem;
        margin-bottom: 6px;
    }

    .result-label {
        font-size: 1.1rem;
        margin-bottom: 8px;
    }

    .bmi-status {
        font-size: 1rem;
        padding: 7px 18px;
    }

    .result-message {
        font-size: 1rem;
        margin-top: 6px;
    }

    #detailed-recommendations {
        font-size: 0.98rem;
        margin-top: 6px;
    }
}

/* Tablet Landscape - Two Column Form Layout */
@media (min-width: 768px) and (max-width: 1024px) and (orientation: landscape) {
    .calculator-card {
        max-width: 720px;
        padding: 36px 40px 32px;
    }

    .calculator-card form,
    .modern-form {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px 20px;
    }

    .calculator-card form button,
    .submit-button {
        grid-column: 1 / -1;
    }

    .results-container {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .bmi-status,
    .result-message,
    #detailed-recommendations {
        grid-column: 1 / -1;
    }
}

/* Very Small Phone Landscape - Ultra Compact */
@media (max-width: 740px) and (max-height: 420px) and (orientation: landscape) {
    .calculator-section {
        min-height: auto;
        padding: 12px 0;
    }

    .calculator-card {
        max-width: 95vw;
        padding: 20px 24px 16px;
        margin: 12px auto;
    }

    .calculator-title,
    .calculator-calories-title {
        font-size: 1.4rem;
        margin-bottom: 14px;
    }

    .calculator-card form,
    .modern-form {
        gap: 12px;
        margin-bottom: 16px;
    }

    .form-group label,
    .calculator-card label {
        font-size: 0.95rem;
        margin-bottom: 4px;
    }

    .calculator-card input,
    .calculator-card select,
    .form-group input,
    .form-group select {
        padding: 9px 12px;
        font-size: 1rem;
        min-height: 40px;
    }

    .submit-button {
        padding: 11px 0;
        font-size: 1.05rem;
        min-height: 42px;
        margin-top: 6px;
    }

    .results-container {
        gap: 12px;
        margin-top: 14px;
    }

    .result-value {
        font-size: 1.9rem;
        margin-bottom: 4px;
    }

    .result-label {
        font-size: 1.05rem;
        margin-bottom: 6px;
    }

    .bmi-status {
        font-size: 0.95rem;
        padding: 6px 16px;
    }

    .result-message,
    #detailed-recommendations {
        font-size: 0.95rem;
        margin-top: 4px;
    }
}